Over the last five decades, Larsen & Toubro has earned a place among the leading manufacturers of Low Voltage Switchgear in the world, with the scale, sophistication and range to meet global benchmarks.

Electrical power is the lifeline of industry, but it is unpredictable. Just like an ocean, it can be calm one moment and turbulent the next. You cannot predict the next course of electrical turbulence. Thats where our highly sophisticated OMEGA ACBs can make a world of difference.

OMEGA ACBs are the next generation breaker with advanced protection features. This product was Awarded as the 'Best Product' at Elecrama.

OMEGA breakers are perfectly designed for Indian conditions. These breakers cater to the needs of various segments like Industry, Infra, OEMs, Utilities etc.

Widest Offering:

• Range from 400A to 6300A
• Breaking capacity from 50kA to 100kA
• Available in 3Pole/4Pole, Manually & Electrically operated, Fixed & Draw-out versions
• Common height & depth across the range
• High short time withstand capacity, Icu=Ics=Icw for 1 sec for total selectivity
• High mechanical and electrical operating life
• Advanced micro-processor based protection release
• 50% and 200% neutral protection solution
• RoHS Compliant

User Friendly Features:

• Breaker can be remotely configure, Operate and Monitor in integration with Smartcomm Integration Solutions
• Unique breaker front-facia architecture displays the electrical accessories mounted on the ACB (with rated control voltage and type of operating voltage)
• Modular and snap-fit accessories like under-voltage, shunt and closing coil redefine modularity on a time scale of 5 mins
• Ease of on-site convertibility from Fix to Draw-out and Manual to Electrical versions
• Tool-less Arc-chutes removal facilitates quick inspection of electrical contacts
• User friendly interface for Release configuration

Switchboard Friendly:

• Three compact frame sizes help in optimizing the switchboard
• True 50% and 200% Neutral Solution for specific user application
• Common height and depth across the range
• Terminal adaptors offer ease of configuration of vertical/horizontal busbar arrangements
• Option of interleaved bus-bar termination offers superior performance
• Supports multi-tier arrangement with minimal clearance with the help of arc-shield
• Self-aligning, Snap-fit secondary isolating contacts enable quick termination
• Option of customized Neutral configuration of 100%N
• Best in class termination overlap with bus-bars

Superior Safety for complete peace of mind:

• Inbuilt Electrical and Mechanical Anti-Pumping prevent multiple breaker closures due to persistent closing command
• CE marking
• Password protection for Protection Releases
• Arc-chute interlocking prevents the closure of breaker if arc-chute is missing or not properly installed
• Smart-racking shutter interlock ensures breaker is switched off before racking out the breaker
• Conforms to Glow Wire Testing
• Temperature protection by monitoring true terminal temperature

Features:

• Range : 16A to 1250A, 3P/4P, 6 frame sizes
• Breaking Capacity : 25kA/36kA/50kA/70kA/100kA
• Confirms to IEC60947-2, EN60947-2, IS/IEC60947-2
• Current Limiting Type MCCB
• Suitable for Isolation
• No Line Load Bias
• Microprocessor & Thermal-Magnetic based protection releases
• MCCBs for Special Applications :
  • Motor backup protection
  • DC Applications
  • Capacitor Application
  • Isolator Application
  • 690V Application
• MCCBs for different Solutions :
  • Total Discrimination
  • Auto Source Transfer System
  • Communication

Releases

(a) Thermal Magnetic Release

• Adjustable overload settings
• Adjustable short circuit settings
• True RMS sensing

(b) Microprocessor Release

MTX1.0 Release

• Overload Protection with inverse time delay
• Adjustable Trip Class
• Short Circuit Protection with Selectable time delay
• Instantaneous protection
• Provision of Thermal memory defeat
• Self powered
• True RMS sensing

MTX2.0 Release

• Overload Protection with inverse time delay
• Adjustable trip class
• Short Circuit Protection with selectable time delay
• Instantaneous protection
• Inbuilt Earth fault and Neutral overload protection
• Provision of Thermal memory defeat
• Panel mounted OLED display for Current metering & Trip History
• Self powered
• True RMS sensing

MTX3.0 Release

• Overload Protection with inverse time delay
• I2t, I4t, SI, LI, VI based overload curves
• Short Circuit Protection with selectable time delay
• Instantaneous protection with fine settings
• Advanced current and voltage based protection function
• Inbuilt Earth fault and Neutral overload protection
• Comprehensive current, power and energy metering
• Provision of Thermal memory defeat
• Panel mounted OLED display
• Communication through MODBUS RTU protocol
• True RMS sensing
• Self powered

Internal Accessories :

• Auxiliary Contact
• Trip Alarm Contact
• Auxiliary + Trip Alarm Contact
• Shunt Release
• Under Voltage Release

External Accessories :

• Direct & Extended Rotary Handle
• Spreader Terminals
• Stored Energy Electrical Operating Mechanism
• External Neutral CT
• Adaptor kit for Neutral CT
• Mechanical Interlock Kit
• Key lock for Interlocking
• Auto Source Transfer Controller
• Ground Fault Module
• Modules for MTX releases

L&Ts Supernova series motor protection circuit breaker (MPCB) integrates functions of a MCCB and thermal overload relay into a highly compact single unit. Equipped with a wide range current adjustment dial (with maximum/minimum ratio of 1.4 to 1.6), the MPCB easily adjusts to match the rated current of the motor, for optimum protection. MPCB provides protection against short circuit & overload. Also the compact size of the MPCB, including overload relay functions, enables a smaller installation area with less wiring space, for a reduction in panel size.

Features

• Compactness
• High Breaking Capacity
• Short circuit protective coordination
• Reduction in wiring work
• Ecological design standards
• Standard accessories for all frames of MPCB
• Wide range of accessories which suits your requirements
• IP20 terminal cover prevents accidental contact to electrically charged part

Accessories

• Auxiliary contact blocks
• Alarm contact blocks
• Auxiliary and alarm contact blocks
• Short-circuit alarm contact block
• Shunt trip devices
• Undervoltage trip devices
• External operating handles

We offer half panels and sub-cubicles for 11kV. The VCB is draw out type and can be racked out directly on the floor. VCBs are type tested according to International Standards IEC-62271 at renowned laboratories. They are compact, safe and reliable. The sub-cubicle is VCB with its compartment having all safety interlocks. The half panel is an assembly of the medium voltage compartments except for low voltage compartment.

Features:

• Sub-cubicle for system voltage 11kV and a short time current rating of 26.3kA
• Half panel for system voltage 11kV and short time current rating of 26.3kA and 40kA
• Half panel comes with an option of Copper/Aluminium bus-bar
• VCB current rating upto 3150A
• Provision of manual and electrical spring charging in VCB
• Spring charging motor voltage 230V AC and 110V DC/220V DC
• Closing/Tripping coil voltage 24V DC/110V DC/220V DC
• VCB comes with inbuilt anti-pumping feature

Over the last five decades, Larsen & Toubro has earned a place among the leading manufacturers of Low Voltage Switchgear in the world, with the scale, sophistication and range to meet global benchmarks.

Electrical power is the lifeline of industry, but it is unpredictable. Just like an ocean, it can be calm one moment and turbulent the next. You cannot predict the next course of electrical turbulence. Thats where our highly sophisticated OMEGA ACBs can make a world of difference.

OMEGA ACBs are the next generation breaker with advanced protection features. This product was Awarded as the 'Best Product' at Elecrama.

OMEGA breakers are perfectly designed for Indian conditions. These breakers cater to the needs of various segments like Industry, Infra, OEMs, Utilities etc.

Widest Offering:

• Range from 400A to 6300A
• Breaking capacity from 50kA to 100kA
• Available in 3Pole/4Pole, Manually & Electrically operated, Fixed & Draw-out versions
• Common height & depth across the range
• High short time withstand capacity, Icu=Ics=Icw for 1 sec for total selectivity
• High mechanical and electrical operating life
• Advanced micro-processor based protection release
• 50% and 200% neutral protection solution
• RoHS Compliant

User Friendly Features:

• Breaker can be remotely configure, Operate and Monitor in integration with Smartcomm Integration Solutions
• Unique breaker front-facia architecture displays the electrical accessories mounted on the ACB (with rated control voltage and type of operating voltage)
• Modular and snap-fit accessories like under-voltage, shunt and closing coil redefine modularity on a time scale of 5 mins
• Ease of on-site convertibility from Fix to Draw-out and Manual to Electrical versions
• Tool-less Arc-chutes removal facilitates quick inspection of electrical contacts
• User friendly interface for Release configuration

Switchboard Friendly:

• Three compact frame sizes help in optimizing the switchboard
• True 50% and 200% Neutral Solution for specific user application
• Common height and depth across the range
• Terminal adaptors offer ease of configuration of vertical/horizontal busbar arrangements
• Option of interleaved bus-bar termination offers superior performance
• Supports multi-tier arrangement with minimal clearance with the help of arc-shield
• Self-aligning, Snap-fit secondary isolating contacts enable quick termination
• Option of customized Neutral configuration of 100%N
• Best in class termination overlap with bus-bars

Superior Safety for complete peace of mind:

• Inbuilt Electrical and Mechanical Anti-Pumping prevent multiple breaker closures due to persistent closing command
• CE marking
• Password protection for Protection Releases
• Arc-chute interlocking prevents the closure of breaker if arc-chute is missing or not properly installed
• Smart-racking shutter interlock ensures breaker is switched off before racking out the breaker
• Conforms to Glow Wire Testing
• Temperature protection by monitoring true terminal temperature

Features:

• Range : 16A to 1250A, 3P/4P, 6 frame sizes
• Breaking Capacity : 25kA/36kA/50kA/70kA/100kA
• Confirms to IEC60947-2, EN60947-2, IS/IEC60947-2
• Current Limiting Type MCCB
• Suitable for Isolation
• No Line Load Bias
• Microprocessor & Thermal-Magnetic based protection releases
• MCCBs for Special Applications :
  • Motor backup protection
  • DC Applications
  • Capacitor Application
  • Isolator Application
  • 690V Application
• MCCBs for different Solutions :
  • Total Discrimination
  • Auto Source Transfer System
  • Communication

Releases

(a) Thermal Magnetic Release

• Adjustable overload settings
• Adjustable short circuit settings
• True RMS sensing

(b) Microprocessor Release

MTX1.0 Release

• Overload Protection with inverse time delay
• Adjustable Trip Class
• Short Circuit Protection with Selectable time delay
• Instantaneous protection
• Provision of Thermal memory defeat
• Self powered
• True RMS sensing

MTX2.0 Release

• Overload Protection with inverse time delay
• Adjustable trip class
• Short Circuit Protection with selectable time delay
• Instantaneous protection
• Inbuilt Earth fault and Neutral overload protection
• Provision of Thermal memory defeat
• Panel mounted OLED display for Current metering & Trip History
• Self powered
• True RMS sensing

MTX3.0 Release

• Overload Protection with inverse time delay
• I2t, I4t, SI, LI, VI based overload curves
• Short Circuit Protection with selectable time delay
• Instantaneous protection with fine settings
• Advanced current and voltage based protection function
• Inbuilt Earth fault and Neutral overload protection
• Comprehensive current, power and energy metering
• Provision of Thermal memory defeat
• Panel mounted OLED display
• Communication through MODBUS RTU protocol
• True RMS sensing
• Self powered

Internal Accessories :

• Auxiliary Contact
• Trip Alarm Contact
• Auxiliary + Trip Alarm Contact
• Shunt Release
• Under Voltage Release

External Accessories :

• Direct & Extended Rotary Handle
• Spreader Terminals
• Stored Energy Electrical Operating Mechanism
• External Neutral CT
• Adaptor kit for Neutral CT
• Mechanical Interlock Kit
• Key lock for Interlocking
• Auto Source Transfer Controller
• Ground Fault Module
• Modules for MTX releases

L&Ts Supernova series motor protection circuit breaker (MPCB) integrates functions of a MCCB and thermal overload relay into a highly compact single unit. Equipped with a wide range current adjustment dial (with maximum/minimum ratio of 1.4 to 1.6), the MPCB easily adjusts to match the rated current of the motor, for optimum protection. MPCB provides protection against short circuit & overload. Also the compact size of the MPCB, including overload relay functions, enables a smaller installation area with less wiring space, for a reduction in panel size.

Features

• Compactness
• High Breaking Capacity
• Short circuit protective coordination
• Reduction in wiring work
• Ecological design standards
• Standard accessories for all frames of MPCB
• Wide range of accessories which suits your requirements
• IP20 terminal cover prevents accidental contact to electrically charged part

Accessories

• Auxiliary contact blocks
• Alarm contact blocks
• Auxiliary and alarm contact blocks
• Short-circuit alarm contact block
• Shunt trip devices
• Undervoltage trip devices
• External operating handles

We offer half panels and sub-cubicles for 11kV. The VCB is draw out type and can be racked out directly on the floor. VCBs are type tested according to International Standards IEC-62271 at renowned laboratories. They are compact, safe and reliable. The sub-cubicle is VCB with its compartment having all safety interlocks. The half panel is an assembly of the medium voltage compartments except for low voltage compartment.

Features:

• Sub-cubicle for system voltage 11kV and a short time current rating of 26.3kA
• Half panel for system voltage 11kV and short time current rating of 26.3kA and 40kA
• Half panel comes with an option of Copper/Aluminium bus-bar
• VCB current rating upto 3150A
• Provision of manual and electrical spring charging in VCB
• Spring charging motor voltage 230V AC and 110V DC/220V DC
• Closing/Tripping coil voltage 24V DC/110V DC/220V DC
• VCB comes with inbuilt anti-pumping feature