1250A Air Circuit Breaker

Feature & Principle

This low voltage air circuit breaker provides overload, short-circuit and earth fault protection. It uses energy storage operating mechanism and arc extinguishing chamber, available in fixed or draw-out structure. It is installed in main incoming cabinets and bus tie cabinets of industrial power distribution systems.

Specifications

Model: 1250A Type: Air circuit breaker (ACB) Rated current: 1250 A Rated voltage: 690 VAC Frequency: 50 / 60 Hz Standard: IEC 60947-2 Structure: Fixed / Drawout optional Application: Industrial low voltage power distribution cabinet Certification: CE

Components & Diagnostics

Main contact set, arc chute, spring energy storage mechanism, trip unit, closing coil, auxiliary contacts. Common faults: contact burning, mechanism jamming, trip malfunction, terminal overheating.

Product Brief

1250A air circuit breaker, low voltage main distribution protection spare widely used for power cabinet overhaul and replacement.