Molded Case Circuit Breakers (MCCBs)

Molded case circuit breakers (MCCBs) are the circuit protection backbone of electrical power distribution systems in residential, commercial and industrial settings. They offer protection for circuits from 15 through several thousand amps and are conveniently re-settable for maximum uptime. MCCBs protect electrical systems from overloads and short circuits, ensuring safety and preventing damage to the equipment.

A NOARK’s MCCB is suitable for a variety of applications, by machinery manufacturers, control panel fabricators and power distribution OEMs. NOARK’s Molded Case Circuit Breakers are designed to withstand a wide temperature range from -40 to +70 degrees C so they can perform reliably even in demanding applications.

Molded Case Circuit Breakers

NOARK Molded Case Circuit Breakers: High Capacity in a Compact Design

NOARK Electric offers a complete range of Molded Case Circuit Breakers that feature a high quality compact modular design in six frame sizes: M1 – 150A, M2 – 250A, M3 – 400A, M4 – 600A, M5 – 800A, and M6 – 1200A. Each frame size offers a range of interrupting ratings up to 100kA at 480Vac and voltage ratings up to 600Vac and 600Vdc and has fixed and adjustable trip unit settings.


High-breaking capacity and a patented arc extinguishing design.

A bearing-type spindle reduces the operating force required to open and close the operating mechanism.

5-Year limited warranty.

Introducing NOARK Electric’s New Website and Digital Catalog

NOARK Electric is thrilled to unveil our brand new website and digital catalog allowing us to stay ahead of the curve in the electrical industry.

NOARK Releases Woehner Busbar Adapters for MCCBs

Noark Electric has added busbar adapter solutions for our Molded Case Circuit Breakers to our portfolio of offerings.

Trip Curves Explained How NOARK Electric Ensures Your Safety

Understanding trip curves is essential for selecting the right circuit breaker to protect your electrical system.


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