Circuit Breakers - ABB

Circuit breakers protect circuits from overloads and short circuits, and you can reset them after a trip. They're the main overcurrent protection in control panels, switchboards and distribution equipment.

Breaker Types

• Miniature circuit breakers (MCBs) – DIN rail control circuit protection
• Molded case circuit breakers (MCCBs) – higher currents
• Supplementary protectors – equipment protection
• Motor circuit protectors – motor branch circuits
• Ground-fault breakers – personnel protection

Choosing a Breaker

Select current rating, voltage, poles, trip curve and interrupting rating. Confirm UL listing for your application, whether branch circuit (UL 489) or supplementary (UL 1077).

Centro carries circuit breakers and accessories.

Related categories: Circuit Protection | Fuses | Breaker Conversion Kits | Fuse Blocks and Holders | Disconnect Accessories