H.R.Enterprises

Kalbadevi, Mumbai, Delhi

A circuit breaker is an automatically-operated electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit. Its basic function is to detect a fault condition and, by interrupting continuity, to immediately discontinue electrical flow.

A Complete System designed with you in Mind

MCCB: Sentron 3VA

Rated current: 16A to 630A1 pole, 2 pole, 3 pole & 4 pole versionsThermal magnetic and Microprocessor based trip unitCommon Internal accessories for the entire rangeInformation on the GO - Unique Knowledge Manager (QR Code) for 24 X 7 Technical InformationInnovative Accessories viz. Short Circuit Alarm Signaller, Illuminated Handle, Shunt Trip Flexible etc

Siemens push buttons and indicator lights are characterized by a high degree of functionality and their modern, slim design. Another convincing feature: They are easy to assemble. The actuators, indicators, holders as well as switching and lighting components can be made secure and stable in rapid, one-man assembly.

These limit switches are actuated by straight edges, cams, stops or plates etc. and give control commands for the further progress of the switching program or of the manufacturing/processing sequence. For the various control applications there are 2 ranges available, namely open type and metal enclosed limit switches with 3 different versions of contact configuration.

There is a wide range of actuators suitable for different operations/ actuation conditions, enabling the user to select the most optimum one for the particular application. Specially designed compact housings also allow for optimum installation and convenient cable entry. The design, materials used and manufacturing processes ensure that 3SE3 limit switches guarantee the reliable functioning of control and auxiliary systems.

SICONT Limit Switch - 3SE3

The 3SE3 limit switches conform to theIS: 13947-5-13 and IEC: 947-5-1-3 standards: Electro-mechanical controlswitches.
The open type limit switches have the degree of protection: IP 20 for terminals
The open type switches are available with 2 or 3 sets of contacts.
The metal-enclosed limit switch consists of the IP 67 housing
In the 3SE3 range, it is possible to interchange the actuators and contact blocks, as required

Whether on-delayed, off-delayed or timing relay for switching from star to wye-delta - with diverse designs, our broad range covers almost every application. All of our timing relays are especially compact and are available with removable terminal, screw connection or spring loaded technology. An additional advantage: Versions with wide-range voltage of AC/DC 24 to 240 V reduce the number of versions and thus warehousing. 3RP electronic timers are suitable for snap mounting onto 35 mm standard DIN rails. Accessory for mounting 3RP timers on base plate is available and can be ordered separately. Changing the time setting ranges and the functions will only be effective when carried out in de-energised (OFF) state. Start input B1 or B3 must only be triggered when the supply voltage is applied. With the two-voltage version, only one voltage range must be connected.

ELECTRONIC TIMER - 3RP

Reduction in inventory cost (upto 80%) due to universal time and universal voltage ON delay timers.
High accuracy (

Whether as single devices, as modules for load feeders or for installation in low-voltage distribution boards/switchboards Siemens offers suitable contactors for every application as well as fully assembled contactor assemblies. What makes our SIRIUS devices unique: Their high contact reliability, extremely long service life and the possibility of using them even in the most extreme ambient conditions.A special highlight: Contactors in size S00, S0and S2 can be used to configurestar-delta (wye-delta) starters simply by plugging in function modules. These can also be equipped with an AS-i or IO-Link interface as an option, which significantly reduces the control circuit wiring.

Contactor relays are switching devices for control and auxiliary circuits and are used to control, provide signals and interlock switching devices and switchgear panels. It goes without saying that the 3RH2 SIRIUS contactor relays have connection designations in compliance with the standard and use a connection system which is both time and cost saving fulfilling the requirements from the field. The 3RH2 contactor relays and the size S00 motor contactors are the same size and have the same optical design; this represents a significant advantage, especially when it comes to accessories.

They are designed for AC or DC operation and are available with screw or spring-loaded technology. The basic version of the contactor relays has 4 poles but this can be extended up to 8 poles using auxiliary contact blocks which can be snapped-on.

POWER CONTACTOR - 3RTSIRIUS

Sizes S00 to S2, up to 37 kw Compared to the former 3RT1 series, the 3RT2 series is characterized by its higher rating :-Communication capable power contactorsWith indication of Remaining Life Time (RLT) :-Early warning to replace contacts, Optimum utilization of contact material, Visual inspection of condition of contacts no longer necessary RoHS complaint, Reduction of operating costs, Optimum planning of maintenance schedules, Avoidance of unforeseen plant downtimes3 Pole AC1 Duty Contactors4 pole contactors - (with 4NO main contacts)Vacuum contactorsPOWER CONTACTOR - 3RTSIRIUS

Sizes S00 to S2, up to 37 kw Compared to the former 3RT1 series, the 3RT2 series is characterized by its higher rating :-Communication capable power contactorsWith indication of Remaining Life Time (RLT) :-Early warning to replace contacts, Optimum utilization of contact material, Visual inspection of condition of contacts no longer necessary RoHS complaint, Reduction of operating costs, Optimum planning of maintenance schedules, Avoidance of unforeseen plant downtimes3 Pole AC1 Duty Contactors4 pole contactors - (with 4NO main contacts)Vacuum contactors

Siemens push buttons and indicator lights are characterized by a high degree of functionality and their modern, slim design. Another convincing feature: They are easy to assemble. The actuators, indicators, holders as well as switching and lighting components can be made secure and stable in rapid, one-man assembly.
Part of our extensive product rage are actuator and switch blocks as well as lamp holders with LED which are called simple electrical apparatus in compliance with ATEX directive thus being suitable for application in intrinsic circuits.

Powerful machines need powerful Push Buttonsand Signaling Devices. SIRIUS ACT offers you a unique of elegantly designed Push Buttons, indicator lights and switches that are the perfect embodiment of style, intelligence, and physical toughness.

Indicating Lamps 3SB5
Contact reliability
Easy identification for contact blocks is possible due to the colour coding
Built in low voltage glow protection3SB5 LED pilot lights are provided with an inbuilt surge suppressorThis helps in protecting sensitive electronic devices such as PLC, DCS systems, CNC systems, etc. from switching over voltage.

SIRIUS overload relays with screw-type, spring-loaded or ring cable lug connections reliably protect loads as well as other switching and protective devices in the respective load feeder against overload, phase asymmetry and phase failure. Thanks to ATEX certification, they can be used in many different applications and are even suitable for protecting motors designed for use in explosive environments. The overload relays can easily be used with the contactors of the SIRIUS module kit.

For demanding applications, the modular variants of the 3RB22, 3RB23 or 3RB24 electronic overload relays even offer full motor protection using connected thermistors to sense the motor temperature, as well as comprehensive display and signaling functions, and a communication link using IO-Link.

Optimized, standard accessories are available for 3RU2 and 3RB3. This helps to reduce costs for ordering and maintaining stocks

Thermal Overload Relays - 3RU
Can be directly mounted to SIRIUS range of contactorsRunning cost reduction due to less power lossSealing cap on setting dial to prevent direct access

Microprocessor based overload relay - 3RB
SIRIUS 3RB range of Microprocessor based motor protection relays offer protection for motors against variousfaults viz., overload, phase failure, earth fault etc
The higher end 3RB relays with large setting (1:10) also offer thermistor protection.They are modular in design and can accommodate add on modules such as internal earth fault protection module, analog output module, overload warning module, ground fault signalling module, etc.

Electronic soft starters protect the machines mechanical power-transmitting elements during start-up and ramp down, and efficiently guard the network against high inrush peaks through reduced power input. Gentle treatment of network, motor and load and optimum protection against overload. Comprehensive motor starting solution 0.1 kW to 1200kW.

Dol Starterare ideally suited for usage in remote places, owing to the wide variation in operating parameters. They are available in DOL ( Raja Starters) and Star Delta Starters in Manual as well as ASD type. Keeping in mind the requirement of different bi-relays in different situations, the starters offer only contactors thereby giving the customers the freedom to select bi-relays (DOL: 15-55kW ; SD:22-55kW)

Digital soft starters - SIRIUS 3RW30/40/44

Compact design
Soft starting and smooth ramp-down (soft starting only available for 3RW30)
Integrated bypass contact system
Innovative 2-phase Polarity Balancing operation
Energy management, Provision of energy data such as current, voltage and power (3RW44) via bus to higher-level
systems
Current management, Avoidance of current peaks, thus reducing the load on the grid and the mechanical system
Reduction of control cabinet temperature rises, Depending on technology, lower intrinsic power loss than speed-
controlled drive systems, and therefore less cooling required, making a more compact design possible. All sizes are
equipped with bypass protection, resulting in lower power losses after start-up