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Miniature Circuit Breakers

Miniature Circuit Breakers (MCBs) are a vital element for circuit protection in f electrical systems. They protect circuits from overloads and short circuits, preventing damage to equipment, and potentially dangerous electrical fires or injury. Breakers are automatic switches that interrupt the flow of electricity by tripping quickly and shutting off power to the affected circuit before any damage from an overload or short circuit occurs. Noarkā€™s MCBs offer excellent quality in a compact size and are backed with our standard 5-year warranty which makes them ideal for use in a wide range of applications.

Product Category

Branch Circuit Protection Breakers (UL489) – B1N, B1H, B1NQ

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Product Category

Supplementary Protection Breakers (UL1077) – B1E

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Comprehensive Protection with B1E and B1 UL Miniature Circuit Breakers

The B1E UL 1077 miniature circuit breaker has a complete range of amperages from 1A to 125A. Standard ratings of 5 kA at 480Y/277 Vac and 10 kA at 240 Vac. These are suitable for supplementary protection. On the other hand, the B1 UL 489 miniature circuit breakers are available in a complete range of amperages from 0.5A to 63A. Standard ratings of 10 kA at 480Y/277 Vac and 10 kA at 125 Vdc. These are suitable for branch circuit protection.

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Features

Miniature circuit breakers mount on standard 35 mm DIN rail

Miniature circuit breakers mount on standard 35 mm DIN rail

Module width of only 0.71 in (18 mm) per pole

Module width of only 0.71 in (18 mm) per pole

5-Year limited warranty

5-Year limited warranty

Latest News

Product Feature: ERH32 Extended Rotary Handles

NOARK Electric is thrilled to intorduce our newest accessory for our MCCBs, the ERH32 Extended Rotary Handles.

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Understanding Ground Fault Protection: Importance and Implementation

In this blog, we will delve into the significance of ground fault protection and explore the various methods of implementation.

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The Purpose of Arc Flash Reduction Maintenance Switch Systems

Recognizing the need for enhanced safety measures, engineers have developed the Arc Flash Reduction System to address the risks associated with arc flashes. Arc flash reduction systems are an advanced technology integrated into modern circuit breakers to minimize the occurrence and severity of arc flash events. It operates by detecting the onset of an arc […]

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