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Molded Case Circuit Breakers

Get ready for a molded case circuit breaker (MCCB) - a circuit breaker that is assembled in a molded case. Featuring a current rating of up to 3200 A, and with adjustable trip settings, MCCBs can operate to a wide range of voltages, and frequencies of 50 Hz, 60 Hz or 400 Hz. MCCBs provide circuit overload protection, short circuit protection (short-time and instantaneous), as well as ground fault and earth-leakage protection for your electrical distribution system. Schneider Electric brings the legendary ComPact and PowerPact Multistandard MCCB series, which come in perfectly compact frame size and can cover current ratings between 16 A to 3200 A. Featuring variable trip unit options and delivering stable performance, these two MCCB ranges offer reliable protection for your electrical distribution system.

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  • Optimize your electrical distribution design

    Explore the benefits of low-voltage (LV) selectivity, cascading and coordination for your electrical distribution design in our complimentary technical guide covering MasterPact MTZ air circuit breakers, ComPact NSX & NSXm molded case circuit breakers, Acti 9 miniature circuit breakers and more.

    Get the guide
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  • ComPact NSX & NSXm

    Built on 60 years of innovative and reliable protection, our world-class ComPact NSX & NSXm molded-case circuit breakers up to 630A now feature integrated earth leakage protection.

    Discover ComPact NSX & NSXm
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  • Discover PowerPact B

    Offering robust protection and new features in an optimized size, PowerPact™ B circuit breakers up to 125A will change the way you work.

    Learn more about PowerPact B
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  • Electrical fire protection

    Across the globe, electrical fires cause significant damage to buildings of all sizes. These are just some of our solutions for electrical fire prevention. Explore the risk areas, discover protection tips and view our other solutions to help you design, build and install.

    Learn more about electrical fire prevention
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