Noark Electric’s UL 489 B1NQ circuit breaker can replace the common MCB

Ellen Cools
April 24, 2018
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Noark Electric’s UL 489 B1NQ circuit breaker can replace the common MCB
Courtesy Noark Electric
April 24, 2018 — Noark Electric says its UL 489 B1NQ miniature circuit breaker is now a direct replacement for the common MCB when paired with the optional surface mount.

The breaker is available in three curves (B, C and D), ranges from 0.5 to 63A and is compliant with UL/CSA/IEC standards for branch circuit protection in commercial and residential applications.

Designed and engineered for the HVAC market, it is also suited for a range of industrial applications and other component sub-assembly designs, the company says. The current-limiting B1NQ is thermal-magnetic and protects against short circuit and overloaded conditions. The 1- and 2-pole breaker, offered at 120/240 Vac, provides protection for branch and control circuits.

The surface mount attachment matches the existing bolthole pattern of the common MCB and requires no additional drilling. The B1NQ is placed onto the surface mount and clicks into place.

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