Closing & Tripping Coils

ABB Coil - ABB make Tripping CoilShunt trip circuit breakers shut off electrical power during emergencies to prevent injury to people and damage to equipment. The shunt trip--a safety feature added to a regular circuit breaker--allows a location or appliance outside of the main breaker to also trigger a power shut-off.

A "shunt trip" coil is installed in a circuit breaker to provide remote trip of the breaker but "undervoltage" or "no voltage" coil is installed to provide automatic tripping when loss of power occurs or when there is a major voltage dip.

Shunt trip circuit breakers shut off electrical power during emergencies to prevent injury to people and damage to equipment. The shunt trip--a safety feature added to a regular circuit breaker--allows a location or appliance outside of the main breaker to also trigger a power shut-off.

Tripping coil is a part of an automatic circuit breaker. It is connected to a sensitive circuit that is designed to disconnect power line. It is triggered by excessive current flow through the breaker. When it energizes, it causes the breaker to open and interrupt the flow of current.