Air Circuit Breakers: C-Power

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To protect your electrical assets, L&T Electrical & Automation (E&A) offers a complete range of Air Circuit Breakers (ACBs) up to 6300A. The C-Power range of ACBs is designed and manufactured to protect electrical systems and machines from overcurrent and short-circuit.

The C-Power ACBs address every single need of a power distribution system to keep your operation running safely and efficiently

The modular design and standardized range of ACBs are suitable for a wide range of electrical applications in Buildings, Infrastructure, and Industries.

Combining scalability, durability, and connectivity, the C-Power ACBs incorporate the latest digital technologies to provide improved power uptime and energy efficiency.

Designed for extreme tropical conditions, the ACBs are being used for diverse applications and have, over the years, proved their credentials as a “rugged breaker”. Typical site conditions like high ambient temperatures, humidity, and dusty environments are best handled by C-Power ACBs without compromising on performance and safety. Their level of performance has become a benchmark in the market.


A range to meet every customer’s need

  • Ratings : 400A to 6300A
  • Breaking Capacities : 50kA to 100kA
  • 3 Pole / 4 Pole Versions with Fix / Draw-out configurations
  • High Short time withstand capacity, Icu=Ics=Icw for 1 sec for total selectivity
  • Different terminal orientations: Flat, Horizontal and Vertical

Elegant Design

  • Common door cut-out for the entire range
  • Left-aligned cut-out for all ratings
  • Uniform height and depth for ACBs up to 4000 Amp

User-Friendly Features

  • Front accessible overcurrent release settings, telescopic racking handle and various racking interlocks; no need to open the panel door
  • Unique ‘Maintenance position’ in draw-out type ACBs to facilitate maintenance & inspection without removing the ACB from the panel
  • Wide variety of Micro-Processor based Protection Releases
  • Unique O-LED (Organic LED) display for protection releases
  • ON / OFF Load Isolator version available
  • Fully rated neutral pole for the entire range
  • Extendable Electrical Life:- By replacing the arcing contacts at the site for all ratings


Superior quality engineering grade plastics used for insulation purpose; conforms to Glow wire test(Ref: IEC 60695-2-1)

  • In-built Mechanical Anti-Pumping to prevent Auto-Reclosing of ACBs
  • In built Safety shutters prevent accidental contact with live cradle terminals
  • Transparent safety shutter offers easy inspection of cradle contacts & reduces the maintenance time
  • Wide Band Shunt Release to ensure intentional tripping even during voltage fluctuations
  • Easily removable arc chutes without the use of any tool – Reduce downtime

Conformance to Standards

  • IEC - 60947 (Part 1 & 2)
  • IS/IEC - 60947 (Part 1 & 2)
  • IEC 60695 - 2 - 1
  • BS EN 60947 – 2

Special Applications

690V Application for C-Power ACB

Solution for 690V application available in C-Power family. For further details, please consult our nearest branch office.

Breakers for Corrosive Environment

Solutions for harsh/corrosive environments available in C-Power family



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