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Leading Manufacturer, Supplier & Retailer of CG 110-240 VDC Closing & Tripping Coil, Siemens 220 VDC Closing & Tripping Coil, Areva Copper Closing & Tripping Coil, Areva 24-110 VDC Closing & Tripping Coil and ABB 110 VDC Closing & Tripping Coil.
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.