Technical FAQs 4

What is a D-trip circuit breaker?

Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit. D-trip circuit breakers prevent nuisance tripping, so they are best for equipment that has a high spike in current at startup, such as transformers, power supplies, and heaters.

What is a supplemental circuit breaker?

Also known as supplemental protectors, these circuit breakers mount directly to DIN rail downstream from a branch circuit breaker to protect a single piece of equipment. They are rated UL1077 for protection against overloads and short circuits. Because they are thermal- magnetic, these breakers trip two ways.

What is a circuit breaker?

Circuit breakers are switching devices that can close, carry and break the current under normal circuit conditions and can close and carry and break the current under abnormal circuit conditions within the specified time. WHO ARE WE?

Can a shunt trip a circuit breaker?

They will not trip unless a rush of current reaches 10 to 20 times their rated current. Shunt trips receive a signal from equipment to trip your circuit breaker in situations other than overload or short circuit conditions.

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