Square D®  offers the widest selection of molded case circuit breakers in the industry - from 15A through 6000A. Commonly used in UL 67 individual enclosures and panelboards and UL 891 switchboards, these circuit breakers include the industry's leading technology with a complete array of functions that enhance reliability. Features include: 

• Push-to-trip - allows for easily checking of all functions without the need for expensive test equipment
• Permanent trip - integral to the MCCB and factory calibrated to industry standards
• Trip-free mechanism - allows breaker to trip even with the handle locked or held in the ON position
• Trip indication - operating handle snaps into center position providing easy identification

PowerPact Molded Case Circuit Breakers lead the industry with proven, reliable protection and innovative design. They permit smaller footprint and higher density installations, and are available up to 3000A to meet a broad range of commercial and industrial applications. >more...