SQ – Air Circuit Breakers (ACB)

General features
• Protection of circuit against short-circuit and overload currents
• Controls of low voltage distribution system
• Microprocessor based control unit for protection and measurements
• Fixed and draw-out versions
• Three or four pole options available
• Ammeter, Maintenance Indicator, Fault Indicator, Self Monitoring.

Ratings
• Ratings from 800 to 6300 A AC, from 1000 to 8000 A DC;
• Breaking capacity from 40 to 150 kA rms;
• Operational voltages 690V AC, 1000V DC

Optional Functions:
• Load Monitoring
• Zone Selective Interlocking for earth-fault Protection
• Power Measurement
• Indication and Control