Technical FAQs 3

What are the circuit breakers for the DIN rail branch?

UL 489 DIN rail branch circuit breakers are FAZ-NA circuit breakers. UL 489 circuit breakers at 480/277 Vac— 10 kAIC, 14 kAIC D curve (13–20 A) Amp.

Who makes DIN rail mounted breakers?

Altech is the US leader in DIN rail mounted breakers with ratings up to 63A. Only Altech offers DIN rail mounted breakers that meet UL489, UL508, or UL1077 approvals with a short circuit interrupt capacity of up to 10kA.

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. Add ground fault protection to a circuit to minimize the risk of electric shock to workers and equipment if there is a current leak.

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Welcome to Chicago Circuit Breakers, your premier source for buying and selling a comprehensive range of circuit breakers. Based in the heart of Chicago, we specialize in

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