L&T Air Circuit Breakers

Features :

• 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 configuration
• 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 entire range
• Left aligned cut-out for all ratings
• Uniform height and depth for ACBs upto 4000 Amp

User Friendly Features :

• Front accessible over current release settings, telescopic racking handle and various racking interlocks; no need to open the panel door
• Unique ‘Maintenance position’ in drawout 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 site for all ratings

Safety :

• 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 ACB
• 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 use of any tool – Reduces downtime