Belt Loading Monitor

Min. Order (MOQ) 1 Piece(s)
Brand Name Protocontrol

Belt loading monitor is a simple and robust device to detect loading of material on the belt conveyor. By using this contact condition like empty running, part running and full load running of conveyor is detected. Indication of empty running of conveyor is very important as it gives early warning of no loead. it consists of a roller assembly which is to be installed below the belt. Due to loading on the belt, the roller makes contact with the belt .the belt pushes the roller down and operates the limit switch contact. The contacts are used in control circuit for interlocking purpose. The enclosure for switch is cast al / dmc suitable for outdoor mounting. specifications: control supply: 230 v ac, 50 hz output: 2 c/o relay contact, rating 5 amp resistive at 230 v ac enclosure: field mounting ip 65, cast al

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Safety Switches For Belt Conveyers

We are offering safety switches for belt conveyers, protocontrol offers a variety of safety devices like pull cord switch, belt sway switch and electronic speed monitor to protect the conveyer belt in case of emergency. pull cord switch: it is a rope operated emergency switch. It is provided with operating handle fitted with spring steel rings at both ends for fixing the rope. Pull cord switch is mounted on the walkway side of conveyer belt, preferably at about every 20 meters length. Rope is tied to the end rings of the handle. When the rope is pulled from any side, the switch is operated. The switch in the operated condition until and unless it is manually brought to normal position. belt- sway switch: this switch allows smooth running of the conveyer and protects it from damages by over swaying which can occur due to uneven loading of material, worn out idler roller bearings etc. The belt sway is generally mounted on both sides and near the edge of conveyer belt. A small gap is provided between contact roller and the belt edge to allow normal running of the belt with acceptable tolerance. When swaying exceeds normal limit, the belt edge pushes the contact roller, which drives the switch and operates the contacts. Switch resets automatically when the belt resumes normal running. both the above switches are housed in dust and weatherproof cast aluminum enclosure with ip55 / ip 65 grade of protection. electronic speed switch - monitor: this switch is used to monitor speed of conveyers, crushers, rolling mills, agitators, mixers, stirrers, screw conveyers and other industrial machinary. The device actuates relay contacts at preset speed.using these contacts, desired control action such as zero speed protection/ under speed protection/ over speed protection can be achieved. Potentiometric speed setting facility is provided. heavy duty limit switch : used to send end position of heavy machinery. Provided with roller lever or v lever. Available in toggle mechanism or auto reset mechanism. damaged belt detector: gives early warning of belt damage. Available in rope type or infrared type.

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Mechanical Tilt Level Switch

Min. Order (MOQ) 1 Piece(s)

We are offering mechanical tilt level switch. Protocontrol with a vast experience of more than 25 years offers complete level management solutions. We offer solutions for measuring levels of liquid, powder, granule, solids and bulk solids. We are the first in india to develop capacitiv proximity switch for packaging industry. We are the first to design and prove chute block switch for bulk solids.mechanical tilt level switch application:tilt switch is an electronic device specially developed for sensing the level of an approaching stockpile on stacker-reclaimed or material in hopper in a silo and to provide an output signal which can be used to initiate control action. It is used for measuring level of solids & granules. Operating principle:the tilt switch comprises of two parts : sensor probe & monitoring unit. The sensor probe is of tubular structure & is hanged by means of a chain link arrangement. When tilt probe gets tilted by material, the output relay gets actuated. The sensor probe unit has uni-directional sensing pattern and hence on whichever side its tilts, it provides output signal. It has built-in adjustable on & off delays to take care of nuisance tripping due to wind flow or momentary jerks at the start and stop of the machine. Features:adjustable on & off delay, to prevent nuisance tripping. Uni-directional sensor probe. The switch operates when tilts to any direction.less maintenance.

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Electronic Speed Monitor

Min. Order (MOQ) 1 Piece(s)
Brand Name Protocontrol

We are offering microprocessor based speed monitor. Now a day in material handling plants under over speed monitor is one of the essential control and safety device. application: electronic speed monitor is used to monitor speed of conveyors, crushers, rolling mills, agitators, mixers, stirrers, screw conveyors, and other industrial machinery. This device actuates relay contacts at preset speed. Using these contacts desired control action such as zero speed protection under speed protection over speed protection can be achieved. operation: the basic principle of speed monitor is comparison of pulses received from sensor with standard pulses. The unit consists of two parts: "sensor probe" and control unit. The sensor is to be installed with its sensing face in close proximity of rotating object. On this object, flags are to be fixed. The sensor produces strong electromagnetic waves, which get disturbed by the flags, giving rise to corresponding pulses. These pulses are fed to the control unit where they are compared with standard pulses to sense the speed. micro controller based, speed indicator monitor - tachometer features: micro controller based circuitry packed with customer friendly features. Same speed monitor is used for indication of rpm or mpm (linear speed) selectable number of flags: enter number of flags which are available at site, speed monitor will get automatically calibrated for these flags relay contact op for tripping digital display adjustable trip delay settable hysteresis special models for combined under over speed monitoring duty

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Electronic Speed Monitor

Min. Order (MOQ) 1 Piece(s)

Protocontrol make zero speed switch series: esm is designed for indication & monitoring of rotational speed of the drive used on machines like crushers, conveyors, centrifuges, mixers & agitators. The speed monitor which uses non-contact sensor like inductive, capacitive, magnetic or optical proximity switch to sense the speed & actuates a relay at preset speed. Using contacts of this relay desired control action such as zero speed protectionunder speed protection over speed protection under & over speed protection can be achieved. The model with digital display facility normally indicates actual speed of the equipment. Speed monitor displays set speed when push button is pressed. Hence accurate speed setting is possible. The op is in the form of 2co relay contacts. Speed range from 1 to 6000 rpm using inductive proximity switch as a sensor & 500-5000 rpm using magnetic or optical sensor can be covered in six rangesthe enclosure for monitoring unit is panel-mounting type ip 30. A special sturdy cast al enclosure suitable to ip 65 grade can be provided when the when the unit is required to be field mounted. Supply voltage to the control unit is 240 v ac, or as per requirement. Special features such as direction sensing, multi range model, differential or slip speed monitoring are also available. Versions substitute to imported one are also available.

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Electronic Speed Switch With Field Mounting Enclosure

Min. Order (MOQ) 1 Piece(s)

Protocontrol offer electronic speed switch in robust cast al field mounting enclosure. The electronic speed monitor is used to monitor speed of conveyors, crushers, rolling mills, stirrers, screw conveyors, and other industrial machinery. This unit consists of two parts, control unit & sensor probe. The basic principle of speed monitor is comparison of pulses received from sensor with standard pulses. The sensor is to be mounted with its sensing face in close proximity of the rotating object. Flags are to be mounted on the rotation object, which are to be sensed by the sensor. Control unit is enclosed in field mounting or flameproof enclosure. The field mounting enclosure is suitable for working in dusty and dirty environment in water, oil & chemicals. It senses speed by non-contact way. Hence, there are no moving parts. There are no wears & tears of rollers or misalignment of couplings. This device actuates relay contact at preset speed. Using these contacts desired control action such as zero speed protection / under speed protection / over speed protection can be achieved. Initial time delay facility of 0 to 30 seconds is provided to allow the rotating mechanism to achieve the desired speed. Speed setting is possible from 1 rpm to 5000 rpm in optional ranges. Direction sensing and speed monitoring of various locations from single point is possible. The sensor is epoxy potted & housed in metallic/plastic tube. Control unit is enclosed cast al / dmc enclosure

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Zero Speed Switch, Electronic Speed Switch

Min. Order (MOQ) 1 Piece(s)
Brand Name Protocontrol

We are offering zero speed switch, electronic speed switch. Protocontrol make zero speed switch series: esm is designed for indication & monitoring of rotational speed of the drive used on machines like crushers, conveyors, centrifuges, mixers & agitators. The speed monitor which uses non-contact sensor like inductive, capacitive, magnetic or optical proximity switch to sense the speed & actuates a relay at preset speed. Using contacts of this relay desired control action such as zero speed protectionunder speed protection over speed protection under & over speed protection can be achieved. The model with digital display facility normally indicates actual speed of the equipment. Speed monitor displays set speed when push button is pressed. Hence accurate speed setting is possible. the op is in the form of 2co relay contacts. Bcd op is also available in special versions. Speed range from 1 to 6000 rpm using inductive proximity switch as a sensor & 500-5000 rpm using magnetic or optical sensor can be covered in six ranges. the enclosure for monitoring unit is panel-mounting type ip 30. A special sturdy cast al enclosure suitable to ip 65 grade can be provided when the when the unit is required to be field mounted. Supply voltage to the control unit is 240 v ac, or as per requirement. Special features such as digital display, direction sensing, multi range model, differential or slip speed monitoring, analogue op are also available. Versions substitute to imported one are also available.

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Pull Cord Switch With Integral Junction Box

We are offering pull cord switch with integral junction boxpull cord switch with integral junction box and indicating lampprotocontrol offers pull cord switch series: pc with a very special system of indicating lamp in it along with the integral junction box. It is used to stop the conveyor belt in the case of emergency and a red led indicating lamp is been provided, to indicate that the switch is been operated. It is a safety device which is provided with separate junction box for ease of wiring, which when operated stops the belt conveyor motor and provides audio visual alarm. The use of junction makes it easy for wiring and led lamps makes it easy to locate the operated switch. Pull cord switch with indicating lamp enables the visual display of the operated switch even from the distance. It is housed in dust and weatherproof cast aluminum enclosure with ip 65 grade of protection. Sturdy & heavy duty cam-switch with robust contacts is used to give longer service life. Cast aluminum operating handle fitted with spring steel rings at both ends is provided for fixing the rope. The design of the rings gives maximum flexibility in operating condition. Enclosure & handle is epoxy painted to give high corrosion resistance. The switch is designed with manual reset type of mechanism. Pull cord switch is mounted on the walkway side of the conveyor belt, preferably at about every 20 meters of the length. Rope is tied to the end rings of the handle. When the rope is pulled from any side, the switch is operated. Unless and until the handle is reset to normal position manually, the switch remains in operated condition. Standard model of pull cord switch with integral junction box and led indicating lamp is been provided with 1 no + 1 nc output contact & special model with 2no+2nc output contacts are also available. Various other options are available. Please visit website to download catalogue.

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Damaged Belt Detector

Min. Order (MOQ) 1 Piece(s)

We are offering ir type damaged belt detector. Many a times in normal running, some sharp objects gets locked in the chute plate. This sharp object cuts the belt surface and material start falling down the belt. To detect this damage protocontrol offers infrared type damaged belt detector. infrared type light beam curtain is fixed below the belt. In the case of belt damage, material pieces or dust starts falling down through the belt slit. When the light beams are obstructed by falling material through conveyor, same is detected and alarm is activated. Special electronic circuit for use in dusty environment is developed by protocontrol. specification of series dbd i: sensing unit: sensing area approx: length 350 mm sensing gap (belt width): 1.5 mtr. enclosure for sensing unit: al control unit supply: 230 v ac enclosure: field mounting, ip 65 output: 2 co relay contact, rating 5 amp resistive at 230 v ac

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Safety Switches

Min. Order (MOQ) 1 Piece(s)

We are offering safety switches. protocontrol offers safety switch for dusty environment named pull cord switch series pc to stop the conveyor belt in the case of emergency. It is a safety device which when operated stops the belt conveyor motor and provides audio visual alarm. pull cord switch is housed in dust and weatherproof cast aluminum enclosure with ip 65 grade of protection. Sturdy & heavy duty cam-switch with robust contacts is used to give longer service life. handle fitted with spring steel rings at both ends is provided for fixing the rope. The design of the rings gives maximum flexibility in operating condition. Enclosure is epoxy painted to give high corrosion resistance. The switch is designed with manual reset type of mechanism. Pull cord switch is mounted on the walkway side of the conveyor belt, preferably at about every 30 meters of the length. Rope is tied to the end rings of the handle. When the rope is pulled from any side, the switch is operated. Unless and until the handle is reset to normal position manually, the switch remains in operated condition. following models are available :pc 101: pull cord switch with 1 no + 1 nc contactpc 202: pull cord switch with 2 no + 2 nc contact all above switch are field mounting having ip 65 enclosure, available in various enclosures materials to suite site conditions:c: cast aluminum, d: corrosion resistance dmc frp, ci: cast iron, f: flameproof optional accessories:ts: with terminal strip inside the switchjb: with separate junction box with terminal strip for ease of terminationmf: mechanical flag indicationil: indicating lamp for location indicator of operated switchcg: cable glandbp: base plate

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Heavy Duty Limit Switch

Min. Order (MOQ) 1 Piece(s)
Brand Name Protocontrol

protocontrol offers heavy duty limit switch for use on heavy machines. these switches give position feedback by operation of contact. the application include position sensing of crane, stacker reclaimer, loader etc. the robust design makes its use on heavy machinery.these switches have been developed to meet the requirement of extra heavy duty service as found in cranes, in mining, foundries, steel plants etc. where limit switches have to withstand high electrical and mechanical wear. the roller limit switch is used on cranes, stackers and reclaimers to sense position end of travel etc.the heavy duty roller and actuation mechanism makes it immune for impact of these machinery. the bodies and covers are fabricated out of thick cast iron al enclosures, which are resistant against corrosion and rough handling.two types of actuation mechanism are offered 1) stay put type where the switch remains in actuated position and same gets reset only when the lever is pushed back by operating mechanism.2. spring return type where the roller regains its position when the operating mechanism goes away.

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Din Rail Mount Speed Switch

Min. Order (MOQ) 1 Piece(s)

We are offering din rail mount speed switch. Protocontrol offer electronic speed switch in small and compact din rail housing for mounting it in the control panel. The enclosure is 35 mm din rail for mounting the back of the panel. Electronic speed switch is basically used to monitor speed of conveyors, crushers, rolling mills, stirrers, screw conveyors, and other industrial machinery. This unit consists of two parts, control unit & sensor probe. The basic principle of speed monitor is comparison of pulses received from sensor with standard pulses. The sensor is to be mounted with its sensing face in close proximity of the rotating object. Flags are to be mounted on the rotation object, which are to be sensed by the sensor. Control unit is enclosed in din rail mounting enclosure. This device actuates relay contact at preset speed. Using these contacts desired control action such as zero speed protection / under speed protection / over speed protection can be achieved. Initial time delay facility of 0 to 30 seconds is provided to allow the rotating mechanism to achieve the desired speed. Speed setting is possible from 1 rpm to 5000 rpm in optional ranges. Direction sensing and speed monitoring of various locations from single point is possible. The sensor is epoxy potted & housed in metallic/plastic tube. Other products like field mounting enclosure, flame proof enclosure are also available.

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Heavy Duty Limit Switch

Min. Order (MOQ) 1 Piece(s)

We are offering heavy duty limit switch. Protocontrol offers heavy duty limit switch for use on heavy machines. These switches give position feedback by operation of contact. The application include position sensing of crane, stacker reclaimer, loader etc. The robust design makes its use on heavy machinery. These switches have been developed to meet the requirement of extra heavy duty service as found in cranes, in mining, foundries, steel plants etc. Where limit switches have to withstand high electrical and mechanical wear. The roller limit switch is used on cranes, stackers and reclaimers to sense position end of travel etc.the heavy duty roller and actuation mechanism makes it immune for impact of these machinery. The bodies and covers are fabricated out of thick cast iron al enclosures, which are resistant against corrosion and rough handling. Two types of actuation mechanism are offered 1) stay put type where the switch remains in actuated position and same gets reset only when the lever is pushed back by operating mechanism.2. Spring return type where the roller regains its position when the operating mechanism goes away. following models are available hdls 101: heavy duty limit switch with 1 no + 1 nc contact hdls 202: heavy duty limit switch with 2 no + 2 nc contact all above switch are field mounting having ip 65 enclosure, available in various enclosures materials to suite site conditions: c: cast aluminum, d: corrosion resistance dmc frp, ci: cast iron, f: flameproof optional accessories: ts: with terminal strip inside the switch jb: with separate junction box with terminal strip for ease of termination cg: cable gland bp: base plate

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Belt Wair Monitor Rope

Min. Order (MOQ) 1 Piece(s)

We are offering belt wair monitor rope. conveyor belts are subject to wear and tear during operation. Repairs like vulcanization and splicing have to be carried out from time to time. In large conveyor plants, impending belt damages are not always noticed in advance. Protocontrol make damaged belt detector series: dbd enables the following belt damages to be detected at an early stage. parts of the belt have come off in shreds steel ropes stand off from the belt belt edges are torn facing of repair point have come off slices are defective sharp object protruding through the belt fabric damaged belt detector is to be mounted in pairs, positioned on either side of the belt. The units are connected by two spans of special pvc coated cable. One end of the cable mounts permanently to a support bracket and the other end is connected to a spring loaded ball located in a dbd unit. The switch gets actuated when an object or broken belt surface sweeps away one or both cables pulling spring loaded ball out of socket.

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Conveyor Safety Switches

Min. Order (MOQ) 1 Piece(s)

We are offering accessories for conveyor safety switchesprotocontrol offers following accessories for mounting of conveyor safety switches like pull cord switches, belt sway switch, zero speed switch and speed sensor. these accessories are specially developed in reducing installation time of switches. pull cord wire: 6x7 gi wire construction, covered with pvc. Diameter approx 5-6 mm specially extruded for material handling plant use. tying clips: two tying clips are required per switch for tying pull cord cable to switch hook: pull cord cable passes through the hooks, which are placed approx 3 meters apart. mounting bracket: mounting bracket made of sheet steel, powder coated with corrosion resistance paint for mounting pull cord switch. Suitable holes are made to mount pull cord switch at site. cable gland: nickel cr plated brass cable gland, size 3 4 inch et these accessories are suitable to reduce installation time and cost of conveyor safety switches. They also better appearance and finish.

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Belt Sway Transmitter

Min. Order (MOQ) 1 Piece(s)

Protocontrol offers belt sway transmitter. This transmitter gives analogue 4-20 m amp output with respect to belt sway. This helps in getting feedback in the control room about swaying of conveyor belt. the transmitter is housed in dust & weatherproof cast aluminum enclosure with ip 65 grade of protection. Special corrosion free dmc enclosure is also developed for use in seashore, saline atmosphere. The ss sleeved contact roller fitted with pre lubricated sealed ball bearings. This assures smooth operation of the roller over a long period of time. Switch mechanism is of self reset type. the enclosure is epoxy painted to withstand harsh climate. belt sway transmitter is to be mounted along the sides of the conveyor belt. The belt when pushes the roller, the transmitter gives analogue op.

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Emergency Stop Switch

Min. Order (MOQ) 1 Piece(s)

Protocontrol offers emergency stop switch for conveyor: belt sway switch series: bs to stop the conveyor belt & to indicate the fault when the conveyor belt sways beyond limit. The switch allows smooth running of the conveyor & protects it from damages by over swaying. Over swaying can occur due to uneven loading of material, worn out idler roller bearings etc. the switch is housed in dust & weatherproof cast aluminum enclosure with ip 65 grade of protection. Special corrosion free dmc enclosure is also developed for use in seashore, saline atmosphere. The stainless steel sleeved contact roller is supported on pre lubricated sealed ball bearings. this assures smooth operation of the roller over a long period of time. Switch mechanism is of self reset type. the enclosure is epoxy painted to withstand harsh climate. belt sway switches are to be mounted along the sides of the conveyor belt. Ideal gap between two switches is 30 meters. Small clearance is kept between roller and belt edge to allow belt for some sway. when the belt sways it torches the roller and switch is actuated. The contacts are wired in interlocking circuit to trip the conveyor. The switch is normal action spring return type. following models are available bs 101: belt sway switch with 1 no + 1 nc contactbs 202: belt sway switch with 2 no + 2 nc contact all above switch are field mounting having ip 65 enclosure, available in various enclosures materials to suite site conditions:c: cast aluminum, d: corrosion resistance dmc / frp, ci: cast iron, f: flameproof optional accessories:ts: with terminal strip inside the switchjb: with separate junction box with terminal strip for ease of terminationil: indicating lamp for location indicator of operated switchcg: cable glandbp: base plate

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Chain Pull Switch

Min. Order (MOQ) 1 Piece(s)

We are offering chain pull switch. protocontrol offers pull cord switch series pc to stop the conveyor belt in the case of emergency. It is a safety device which when operated stops the belt conveyor motor and provides audio visual alarm. pull cord switch is housed in dust and weatherproof cast aluminum enclosure with ip 65 grade of protection. Sturdy & heavy duty cam-switch with robust contacts is used to give longer service life. Handle fitted with spring steel rings at both ends is provided for fixing the rope. The design of the rings gives maximum flexibility in operating condition. Enclosure is epoxy painted to give high corrosion resistance. The switch is designed with manual reset type of mechanism. Pull cord switch is mounted on the walkway side of the conveyor belt, preferably at about every 30 meters of the length. Rope is tied to the end rings of the handle. When the rope is pulled from any side, the switch is operated. Unless and until the handle is reset to normal position manually, the switch remains in operated condition. following models are available :pc 101: pull cord switch with 1 no + 1 nc contactpc 202: pull cord switch with 2 no + 2 nc contact all above switch are field mounting having ip 65 enclosure, available in various enclosures materials to suite site conditions:c: cast aluminum, d: corrosion resistance dmc frp, ci: cast iron, f: flameproof optional accessories:ts: with terminal strip inside the switchjb: with separate junction box with terminal strip for ease of terminationmf: mechanical flag indicationil: indicating lamp for location indicator of operated switchcg: cable glandbp: base plate

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Mounting Bracket

Min. Order (MOQ) 1 Piece(s)

We are offering mounting bracket. protocontrol offers following accessories for mounting of conveyor safety switches like pull cord switches, belt sway switch, zero speed switch and speed sensor. these accessories are specially developed in reducing installation time of switches. mounting bracket made of sheet steel, powder coated with corrosion resistance paint for mounting pull cord switch. Suitable holes are made to mount pull cord switch at site.

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Hooks For Pull Cord Switch

Min. Order (MOQ) 1 Piece(s)

We are offering hooks for pull cord switch. protocontrol offers following accessories for mounting of conveyor safety switches like pull cord switches, belt sway switch, zero speed switch and speed sensor.

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Limit Switch

Min. Order (MOQ) 1 Piece(s)

We are offering limit switchprotocontrol offers heavy duty limit switch for use on heavy machines. These switches give position feedback by operation of contact. The application includes position sensing of crane, stacker reclaimer, loader etc. The robust design makes its use on heavy machinery. these switches have been developed to meet the requirement of extra heavy duty service as found in cranes, in mining, foundries, steel plants etc. Where limit switches have to withstand high electrical and mechanical wear. The roller limit switch is used on cranes, stackers and reclaimers to sense position end of travel etc. The heavy duty roller and actuation mechanism makes it immune for impact of these machinery. The bodies and covers are fabricated out of thick cast iron al enclosures, which are resistant against corrosion and rough handling. two types of actuation mechanism are offered 1) stay put type where the switch remains in actuated position and same gets reset only when the lever is pushed back by operating mechanism.2. Spring return type where the roller regains its positionwhen the operating mechanism goes away. following models are available :hdls 101: heavy duty limit switch with 1 no + 1 nc contacthdls 202: heavy duty limit switch with 2 no + 2 nc contact all above switch are field mounting having ip 65 enclosure, available in various enclosures materials to suite site conditions:c: cast aluminum, d: corrosion resistance dmc frp, ci: cast iron, f: flameproof optional accessories:ts: with terminal strip inside the switchjb: with separate junction box with terminal strip for ease of terminationcg: cable glandbp: base plate

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Cable Glands

Min. Order (MOQ) 1 Piece(s)

We are offering cable glands. protocontrol offers following accessories for mounting of conveyor safety switches like pull cord switches, belt sway switch, zero speed switch and speed sensor. these accessories are specially developed in reducing installation time of switches. nickel cr plated brass cable gland, size 3 4 inch et

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Limit Switch Used In Eoc Cranes

Min. Order (MOQ) 1 Piece(s)

Protocontrol offers heavy duty limit switch for use in eoc cranes. These switches give position feedback by operation of contact. The application includes position sensing of crane, stacker reclaimer, loader etc. The robust design makes its use on heavy machinery. these switches have been developed to meet the requirement of extra heavy duty service as found in cranes, in mining, foundries, steel plants etc. Where limit switches have to withstand high electrical and mechanical wear. The roller limit switch is used on cranes, stackers and reclaimers to sense position end of travel etc. The heavy duty roller and actuation mechanism makes it immune for impact of these machinery. The bodies and covers are fabricated out of thick cast iron/ al enclosures, which are resistant against corrosion and rough handling. two types of actuation mechanism are offered 1) stay put type where the switch remains in actuated position and same gets reset only when the lever is pushed back by operating mechanism.2. Spring return type where the roller regains its positionwhen the operating mechanism goes away. following models are available hdls 101: heavy duty limit switch with 1 no + 1 nc contacthdls 202: heavy duty limit switch with 2 no + 2 nc contact all above switch are field mounting having ip 65 enclosure, available in various enclosures materials to suite site conditions:c: cast aluminum, d: corrosion resistance dmc / frp, ci: cast iron, f: flameproof optional accessories:ts: with terminal strip inside the switchjb: with separate junction box with terminal strip for ease of terminationcg: cable glandbp: base platevarious other options are available. Please visit website to download catalogue.

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Damaged Belt Detector

Min. Order (MOQ) 1 Piece(s)

Protocontrol offers rope type belt damage detector. belt damage give early warning of belt damage. Damaged belt detector is to be mounted in pairs, positioned on either side of the belt. The units are connected by two spans of special pvc coated cable. one end of the cable mounts to a support bracket and other end is connected to a spring loaded ball located in dbd unit. The switch gets actuated when an object or broken belt sweeps away one or bothcables pulling spring loaded ball out of socket.

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De Interlocking Switch

We are offering de interlocking switch. Protocontrol offer de-interlocking switches auto manual stations for conveyors. The conveyor can be manual started at field by isolating it from main control like dcs. Various programs and logics are available as per customer's specifications. The enclosure is field mounting type in cast al enclosure with start stop manual buttons.

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Safety Device For Centrifuge

We are offering safety device for centrifuge. The centrifuges are rotating at high speeds. To avoid the danger due to untimely opening of the centrifuge door, zero speed detectors is used as a preventivesafety device. When the centrifuge is rotating, solenoid is activated and the door remains closed even though someone tries to open it .the solenoid is de-activated when the centrifuge speed approaches to zero. I.e. Only when the centrifuge stops rotating. inductive proximity switch is used as a sensor and is placed in close proximity of the rotating object. On this object, metallic plates are fixed. Proximity sensor detect presence of metal objects which come within the range of their oscillating field giving rise to corresponding pulses. These pulses are fed to the control unit where they are compared with the standard pulses to sense the speed. Output is in the form of relay contact.

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Pull Cord Switch For Auto Conveyor

Min. Order (MOQ) 1
Brand Name Protocontrol

We are offering pull cord switch for auto conveyor. Protocontrol developed special models of pull cord switches for use on applications like automobile conveyors and automated inspection stations. pull cord switch for automobile conveyor: poposr: this switch is to be mounted over the head and nylon rope hangs freely. When operator wants to stop conveyor machine he pulls the rope. The switch resets when rope is pulled once again. design with two separate ropes for operate and reset is also available. pc hr: one side operated switch for small machines. The switch is provided with built in reset button. Ideal for small conveyor and textile and printing machine where single switch is used on conveyor machine. above switches are available with indicating lamp as an optional feature

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Safety Switches

Min. Order (MOQ) 1 Piece(s)
Brand Name Protocontrol

Protocontrol offers a variety of safety devices like pull cord switch, belt sway switch in special corrosion resistance frp dmc enclosure. These switches find application in chemical, fertilizer plants and near sea shore use. Dmc enclosure is specially recommended where cast al or cast iron enclosure gets corroded. pull cord switch: it is a rope operated emergency switch. It is provided with operating handle fitted with spring steel rings at both ends for fixing the rope. Pull cord switch is mounted on the walkway side of conveyer belt, preferably at about every 20 meters length. Rope is tied to the end rings of the handle. When the rope is pulled from any side, the switch is operated. The switch in the operated condition until and unless it is manually brought to normal position. belt- sway switch: this switch allows smooth running of the conveyer and protects it from damages by over swaying which can occur due to uneven loading of material, worn out idler roller bearings etc. The belt sway is generally mounted on both sides and near the edge of conveyer belt. A small gap is provided between contact roller and the belt edge to allow normal running of the belt with acceptable tolerance. When swaying exceeds normal limit, the belt edge pushes the contact roller, which drives the switch and operates the contacts. Switch resets automatically when the belt resumes normal running. both the above switches are housed in dust and weatherproof cast aluminum enclosure heavy duty limit switch : used to send end position of heavy machinery. Provided with roller lever or v lever. Available in toggle mechanism or auto reset mechanism. damaged belt detector: gives early warning of belt damage. Available in rope type or infrared type.

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Pull Cord Switch

Min. Order (MOQ) 1 Piece(s)

Protocontrol offers pull cord switch series pc to stop the conveyor belt in the case of emergency. It is a safety device which when operated stops the belt conveyor motor and provides audio visual alarm. pull cord switch is housed in dust and weatherproof cast aluminum enclosure with ip 65 grade of protection. Sturdy & heavy duty cam-switch with robust contacts is used to give longer service life. Handle fitted with spring steel rings at both ends is provided for fixing the rope. The design of the rings gives maximum flexibility in operating condition.enclosure is epoxy painted to give high corrosion resistance.the switch is designed with manual reset type of mechanism.pull cord switch is mounted on the walkway side of the conveyor belt, preferably at about every 30 meters of the length. Rope is tied to the end rings of the handle. When the rope is pulled from any side, the switch is operated. Unless and until the handle is reset to normal position manually, the switch remains in operated condition. following models are available pc 101: pull cord switch with 1 no + 1 nc contact pc 202: pull cord switch with 2 no + 2 nc contact all above switch are field mounting having ip 65 enclosure, available in various enclosures materials to suite site conditions: c: cast aluminum, d: corrosion resistance dmc / frp, ci: cast iron, f: flameproof optional accessories: ts: with terminal strip inside the switch jb: with separate junction box with terminal strip for ease of termination mf: mechanical flag indication il: indicating lamp for location indicator of operated switch cg: cable gland bp: base plate

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Electronic Speed Switch

Min. Order (MOQ) 1 Piece(s)

We are offering electronic speed switch. Protocontrol make electronic speed switch is basically used to monitor speed of conveyors, crushers, rolling mills, stirrers, screw conveyors, and other industrial machinery. this unit consists of two parts, control unit & sensor probe. The basic principle of speed monitor is comparison of pulses received from sensor with standard pulses. The sensor is to be mounted with its sensing face in close proximity of the rotating object. Flags are to be mounted on the rotation object, which are to be sensed by the sensor. Control unit is enclosed in din rail mounting / field mounting or flameproof enclosure. The field mounting enclosure is suitable for working in dusty and dirty environment in water, oil & chemicals. It senses speed by non-contact way. Hence, there are no moving parts. There are no wears & tears of rollers or misalignment of couplings. this device actuates relay contact at preset speed. Using these contacts desired control action such as zero speed protection / under speed protection / over speed protection can be achieved. initial time delay facility of 0 to 30 seconds is provided to allow the rotating mechanism to achieve the desired speed. Speed setting is possible from 1 rpm to 5000 rpm in optional ranges. Direction sensing and speed monitoring of various locations from single point is possible. the sensor is epoxy potted & housed in metallic/plastic tube. Control unit is enclosed cast al / dmc enclosure

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Electronic Speed Switch

We are offering Electronic speed switch series esm is used to monitor speed of conveyers, crushers, rolling mills, agitators, mixers, stirrers, screw conveyers bucket elevators and other industrial machinary.the device actuates relay contacts at preset speed.using these contacts, desired control action such as zero speed protection / under speed protection / over speed protection can be achieved. speed sensor is placed in close proximity of the rotating object. On this object, metallic plates are fixed. Sensor detects presence of metal objects which come within the range of their oscillating field giving rise to corresponding pulses. These pulses are fed to the control unit where they are compared with the standard pulses to sense the speed. Output is in the form of relay contact. standard contact rating is 5 amp resistive at 230 v ac. in case of under speed zero speed application built-in initial by-pass time delay is provided to allow the rotating machinery to attend the desired speed. If after this set time the motor does not attend the set speed, the relay is de-energized and the switch resets automatically when the desired speed is attained. Speed range is to be selected considering normal running speed of the equipment and desired trip speed. following models are available esm 1 w: electronic speed switch for under speed monitoring, field mounting esm 2 w: electronic speed switch with digital display, field mounting esm 4 w: electronic speed switch for over speed monitoring, field mounting esm 1 f: electronic speed switch for under speed monitoring, flame proof enclosure esm 1 d: electronic speed switch with digital display front panel mounting esm 5 d: electronic speed indicator (tachometer) front panel mountingdigital display models provide more features like field adjustable scaling factor, keypad setting, two point contact operation etc. Models with 4-20 ma retransmission output is also available. various other options are available. Please visit websit to download catalogue.

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Anti Collision Switch

Min. Order (MOQ) 1 Piece(s)
Brand Name Protocontrol

We are offering anti collision switch. Anti collision switch finds applications on cranes having long travels like in stock yard. When two cranes are moving on same rail extra protection is required to be provided when they approach each other and enter in danger zone. Anti collision switch prevents accidents of cranes. Switch works on principle of infrared light. The modulated beam when gets reflected by approaching crane is detected and contacts are actuated. Sensing distance available is up to 5 meters in diffuse mode and 20 meters in retro reflective mode. Two set points alarm is generated for alarm and trip operation. The product is field mounting type as well as indoor mounting type,

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Tying Clips For Pull Cord Cable

Min. Order (MOQ) 1 Piece(s)

We are offering tying clips for pull cord cable. protocontrol offers accessories for pull cord switches. these accessories are specially developed in reducing installation time of switches. two tying clips are required per switch for tying pull cord cable to switch.

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Reverse Rotation Indicator

Min. Order (MOQ) 1 Piece(s)
Brand Name Protocontrol

We are offering reverse rotation indicator. protocontrol make reverse rotation monitorindicator is designed for protection & monitoring of pumps and other machinery. The rrm will generate an alarm if the equipment rotates in reverse direction by an accident. This is an important safety device for heavy pumps. the reverse speed monitor uses specially designed sensors to detect direction of rotation of equipment. Rrm actuates a relay contact when equipment shaft rotes in reverse direction. Using contacts of this relay desired control action such as alarm, trip can be achieved. The model with digital display facility normally indicates actual speed of the equipment as well as direction of rotation. the op is in the form of 2co relay contacts. Speed range from 1 to 6000 rpm . the enclosure for monitoring unit is panel mounting type ip 30. A special sturdy cast al enclosure, suitable to ip 65 grade can be provided when the unit is required to be field mounted. Supply voltage to the control unit is 240 v ac, or as per requirement.

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Manual Reset Type Pull Cord Switch

Min. Order (MOQ) 1 Piece(s)
Brand Name Protocontrol

Protocontrol offers manual operated pull cord switch series pc to stop the conveyor belt in the case of emergency. It is a safety device which when operated stops the belt conveyor motor and provides audio visual alarm. pull cord switch is housed in dust and weatherproof cast aluminum enclosure with ip 65 grade of protection. Sturdy & heavy duty cam-switch with robust contacts is used to give longer service life. Handle fitted with spring steel rings at both ends is provided for fixing the rope. The design of the rings gives maximum flexibility in operating condition. Enclosure is epoxy painted to give high corrosion resistance. The switch is designed with manual reset type of mechanism. Pull cord switch is mounted on the walkway side of the conveyor belt, preferably at about every 30 meters of the length. Rope is tied to the end rings of the handle. When the rope is pulled from any side, the switch is operated. Unless and until the handle is reset to normal position manually, the switch remains in operated condition. following models are available :pc 101: pull cord switch with 1 no + 1 nc contactpc 202: pull cord switch with 2 no + 2 nc contact all above switch are field mounting having ip 65 enclosure, available in various enclosures materials to suite site conditions:c: cast aluminum, d: corrosion resistance dmc / frp, ci: cast iron, f: flameproof optional accessories:ts: with terminal strip inside the switchjb: with separate junction box with terminal strip for ease of terminationmf: mechanical flag indicationil: indicating lamp for location indicator of operated switchcg: cable glandbp: base plate.

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Speed Indicators

Min. Order (MOQ) 1 Piece(s)
Country of Origin India
Type Speed Indicators
Thickness 0-5mm
Application Automobile Use, Industrial Use
Feature Clean View, High Strength
Condition New

Protocontrol offers micro controller based non contact speed indicator to continuously display speed of rotating machinery. Digital speed indicator is housed in robust cast al field mounting enclosure or sheet steel front panel mounting enclosure. The speed indicator is used to indicate and monitor speed of rotating machinery like conveyors, crushers, rolling mills, stirrers, screw conveyors, and other industrial machinery. As the speed is also displayed simultaneously, the setting and control action is easy. Linear speed can also be displayed. this unit consists of two parts, control unit & sensor probe. The basic principle of speed monitor is comparison of pulses received from sensor with standard pulses. The sensor is to be mounted with its sensing face in close proximity of the rotating object. Flags are to be mounted on the rotation object, which are to be sensed by the sensor. this device actuates relay contact at preset speed. Using these contacts desired control action such as zero speed protection under speed protection over speed protection can be achieved. initial time delay facility of 0 to 30 seconds is provided to allow the rotating mechanism to achieve the desired speed. Speed setting is possible from 1 rpm to 5000 rpm in optional ranges. Direction sensing and speed monitoring of various locations from single point is possible. The sensor is epoxy potted & housed in metallicplastic tube. Control unit is enclosed cast al dmc enclosure

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Panel Mounted Speed Indicator

Min. Order (MOQ) 1 Piece(s)
Brand Name Protocontrol

Protocontrol manufacturer non contact type speed indicators and tachometers for indication of machine speed in panel control room. Inductive proximity switch is used as a sensor and is placed in close proximity of the rotating object. On this object, metallic plates are fixed. Sensor detects presence of metal objects which come within the range of their oscillating field giving rise to corresponding pulses. These pulses are fed to the control unit where they are compared with the standard pulses to sense the speed. The speed is indicated in rpm or linear speed units like meters per minutes this indicator gives digital display as well as operates relay contact at presser speed. special feature like scaling factor adjustment, relay contacts, analogue op, isolated non isolated output, multiple switching points, large size display for viewing from distance are also available. Special enclosures like whether proof - flameproof enclosures are available.

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Overspeed Safety Switch

Min. Order (MOQ) 1 Piece(s)

Protocontrol make overspeed safety switch series esm is designed for detection of over speed and actuates relay contact at desired over speed limit. These switches find application in downhill conveyors and cranes and heavy duty motors. the over speed monitor which uses non-contact sensor like inductive, capacitive, magnetic or optical proximity switch to sense the speed & actuates a relay at preset speed. Using contacts of this relay desired control action such as over speed protection can be achieved. the op is in the form of 2co relay contacts. Speed range from 1 to 6000 rpm using inductive proximity switch as a sensor & 500-5000 rpm using magnetic or optical sensor can be covered in six ranges. the enclosure for monitoring unit is panel-mounting type ip 30. A special sturdy cast al enclosure suitable to ip 65 grade can be provided when the when the unit is required to be field mounted. Supply voltage to the control unit is 240 v ac, or as per requirement. Special features such as direction sensing, multi range model, differential or slip speed monitoring are also available. Versions substitute to imported one are also available

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Electronic Speed Switch With Digital Display

Min. Order (MOQ) 1 Piece(s)
Brand Name Protocontrol

Protocontrol offers micro controller based digital electronic speed switch packed with customer friendly features. Electronic speed switch with digital display is housed in robust cast al field mounting enclosure or sheet steel front panel mounting enclosure. The esm is used to monitor speed of rotating machinery like conveyors, crushers, rolling mills, stirrers, screw conveyors, and other industrial machinery. As the speed is also displayed simultaneously, the setting and control action is easy. Linear speed can also be displayed. This unit consists of two parts, control unit & sensor probe. The basic principle of speed monitor is comparison of pulses received from sensor with standard pulses. The sensor is to be mounted with its sensing face in close proximity of the rotating object. Flags are to be mounted on the rotation object, which are to be sensed by the sensor. Control unit is enclosed in cat al, field mounting panel mounting enclosure. The field mounting enclosure is suitable for working in dusty and dirty environment in water, oil & chemicals. It senses speed by non-contact way. Hence, there are no moving parts. There are no wears & tears of rollers or misalignment of couplings. This device actuates relay contact at preset speed. Using these contacts desired control action such as zero speed protection / under speed protection / over speed protection can be achieved. Initial time delay facility of 0 to 30 seconds is provided to allow the rotating mechanism to achieve the desired speed. Speed setting is possible from 1 rpm to 5000 rpm in optional ranges. Direction sensing and speed monitoring of various locations from single point is possible. The sensor is epoxy potted & housed in metallic/plastic tube. Control unit is enclosed cast al / dmc enclosure

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Material Level Switch Tilt Switch

We are offering material level switch tilt switch, application :tilt switch is an electronic device specially developed for sensing the level of an approaching stockpile on stacker-reclaimed or material in hopper in a silo and to provide an output signal which can be used to initiate control action. It is used for measuring level of solids, powder, granules. features :adjustable on & off delay, to prevent nuisance tripping. omni-directional sensor probe. less maintenance. principle of operation :the tilt switch comprises of two parts sensor probe & monitoring unit. The sensor probe is of tubular structure & is hanged by means of a chain link arrangement. When tilt probe gets tilted by material, the output relay gets actuated. The sensor probe unit has omni-directional sensing pattern and hence on whichever side its tilts, it provides output signal. It has built-in adjustable on & off delays to take care of nuisance tripping due to wind flow or momentary jerks at the start and stop of the machine.

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Zero Speed Detector For Centrifuge

Min. Order (MOQ) 1
Brand Name Protocontrol

The centrifuges are rotating at high speeds. To avoid the danger due to untimely opening of the centrifuge door, zero speed detectors is used as a preventive/safety device. when the centrifuge is rotating, solenoid is activated and the door remains closed even though someone tries to open it .the solenoid is de-activated when the centrifuge speed approaches to zero. I.e. Only when the centrifuge stops rotating. inductive proximity switch is used as a sensor and is placed in close proximity of the rotating object. On this object, metallic plates are fixed. Proximity sensor detect presence of metal objects which come within the range of their oscillating field giving rise to corresponding pulses. These pulses are fed to the control unit where they are compared with the standard pulses to sense the speed. Output is in the form of relay contact. special sensor as well as control is available for use in hazardous area. The enclosures and enclosures are certified by competent authority for use in gas group: iia, iib as well as iic

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Conveyor Safety Switch Monitor

Min. Order (MOQ) 1 Piece(s)
Brand Name Protocontrol

We are offering conveyor safety switch monitor. Protocontrol developed unique, proven product for large material handling plants where multiple numbers of switches are connected in series. Trip indicator is developed to give exact indication of operated switch in control room advantages: most advanced method of locating operated switch with instant indication, & tripping, time required to search for operated switch is eliminated. communication through two core cable only, less cable cost and cable laying cost interchangeable communicating card rs 232 rs-485 modbus op, plc interface for fault logging. binary op: optional miniature size of communication cards fail safe circuit specially suitable for high length conveyors scrolling display of multiple operated switch roll call feature: indicates missing of communication card general field problems like: cable open. Cable short are indicated on trip indicator redundant op: optional trip indicator: effective working even if switches are filled with water principle of operation: a small communication card is to be wired inside the conventional safety switch. The trip indicator is to be installed in suitable location like control room. When any switch is operated, the location number of operated switch is displayed on the trip indicator. The trip indicator is also provided with relay output which can be interlocked with existing relay logic circuit. For additional safety, protocontrol offers adaptor units for hard wire tripping, eliminating high voltage wires going to the switch compartment. This provides additional safety against effect of cable capacitance and damage due to wiring of high voltage wires to communication circuit. functional description: various models are available depending on number of safety switches length of belt, number of conveyors, configuration of communication op etc. However all models will have following basic features. When any safety switch is operated, the op relay of trip indicator is operated, tripping conveyor instantly. Operated switch number is also displayed and communicated to plc dcs as per requirement. All safety features are incorporated along with special features.

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Safety Switche #346772

Belt Loading Monitor

Safety Switches For Belt Conveyers

Mechanical Tilt Level Switch

Electronic Speed Monitor

Electronic Speed Monitor

Electronic Speed Switch With Field Mounting Enclosure

Zero Speed Switch, Electronic Speed Switch

Pull Cord Switch With Integral Junction Box

Damaged Belt Detector

Safety Switches

Heavy Duty Limit Switch

Din Rail Mount Speed Switch

Heavy Duty Limit Switch

Belt Wair Monitor Rope

Conveyor Safety Switches

Belt Sway Transmitter

Emergency Stop Switch

Chain Pull Switch

Mounting Bracket

Hooks For Pull Cord Switch

Limit Switch

Cable Glands

Limit Switch Used In Eoc Cranes

Damaged Belt Detector

De Interlocking Switch

Safety Device For Centrifuge

Pull Cord Switch For Auto Conveyor

Safety Switches

Pull Cord Switch

Electronic Speed Switch

Electronic Speed Switch

Anti Collision Switch

Tying Clips For Pull Cord Cable

Reverse Rotation Indicator

Manual Reset Type Pull Cord Switch

Speed Indicators

Panel Mounted Speed Indicator

Overspeed Safety Switch

Electronic Speed Switch With Digital Display

Material Level Switch Tilt Switch

Zero Speed Detector For Centrifuge

Conveyor Safety Switch Monitor

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