Molded Case Circuit Breakers (M Frame)
PowerPact Molded Case Circuit Breakers (M Frame) from Square D by Schneider Electric are designed to protect electrical distribution systems from damage caused by overloads and short-circuits. These molded case circuit breakers are available in 2-pole and 3-pole configurations, with current ratings from 350 amps to 800 amps and voltage ratings up to 600 VAC. Their construction and performance characteristics make them suitable for a wide range of commercial and industrial power distribution applications.
PowerPact M-frame circuit breakers feature dual-break rotating contacts that help reduce peak current during short-circuit faults, along with an over-center toggle mechanism for quick-make, quick-break operation. Internal cross-bars provide common opening and closing of all poles using a single handle. The handle can be positioned in ON, OFF, or tripped, with the center tripped position offering clear visual indication that the breaker has operated due to a fault condition.
These circuit breakers are equipped with an electronic trip unit that simulates the function of a thermal magnetic trip unit while delivering more precise tripping performance and reduced sensitivity to ambient temperature changes. PowerPact M-frame breakers are available with adjustable amperage trip units capable of settings from 300 to 800 amps, as well as fixed amperage devices rated at 400 or 600 amps. They are offered in unit-mount and I-Line constructions.
FAQs
Q: What is a PowerPact M-frame circuit breaker?
A PowerPact M-frame circuit breaker is a molded case circuit breaker designed by Square D by Schneider Electric to protect electrical systems from overloads and short-circuits in higher-amperage applications.
Q: What amp ranges are available for M-frame molded case circuit breakers?
M-frame molded case circuit breakers are available with current ratings from 350 amps to 800 amps, depending on the model and trip unit configuration.
Q: What voltage rating do PowerPact M-frame breakers support?
These breakers are designed for applications with a maximum voltage rating of 600 VAC.
Q: What pole configurations are available?
PowerPact M-frame breakers are available in both 2-pole and 3-pole designs to meet different system and installation requirements.
Q: What is the benefit of an electronic trip unit?
An electronic trip unit provides precise tripping performance for overload and short-circuit protection while avoiding the temperature sensitivity commonly associated with traditional thermal magnetic trip units.
Why Buy Molded Case Circuit Breakers (M Frame) from RSP Supply
RSP Supply offers PowerPact M-frame molded case circuit breakers from Square D by Schneider Electric for electrical systems that require dependable overcurrent protection in higher-amperage applications. With configurations available in 2-pole and 3-pole designs, adjustable or fixed trip options, and multiple mounting styles, these breakers support a wide range of industrial and commercial distribution needs.