ABB 1SDA073776R1 S51 250V E1.2-XT7-XT7M

The ABB 1SDA073776R1 is an industrial air circuit breaker designed for use in low-voltage distribution equipment where reliable overcurrent protection and switching are required. As an ABB air circuit breaker, this unit is intended to be fitted into switchgear assemblies and distribution panels to protect busbars and downstream circuits from overloads and short circuits while providing a clear mechanical switching action.

This ACB circuit breaker is used in low-voltage power distribution applications within industrial and commercial electrical systems. It is suitable for installation in main distribution boards, MCC (motor control centers), and switchgear cubicles where an air circuit breaker is specified for fault interruption and service switching. The ABB air circuit breaker form factor and mounting arrangements allow integration into modular switchgear lineups and electrical rooms that require an air-based protective device.

• Brand: ABB
• SKU / Catalog Number: 1SDA073776R1

Application areas cannot be precisely identified from the verified technical data provided because rated current, rated operational voltage, trip unit, number of poles, mounting type and other ratings were not specified. Generally, when those ratings and the trip unit are known, this class of industrial air circuit breaker is applied as a main incoming breaker, feeder protection in distribution switchboards, or as motor-infeed protection in industrial plants; it is selected where a robust, serviceable ACB circuit breaker is required for coordinated protection and switchgear integration.