Square D MA12149 Undervoltage Trip for M-Frame Breakers

Square D MA12149 Undervoltage Trip is a 48 VDC control-voltage release designed to be installed on PowerPact M-frame molded-case circuit breakers to provide undervoltage protection. When the 48 VDC control supply is removed or falls outside acceptable levels, the MA12149 engages its release to trip the breaker, preventing reclosure until the control voltage is restored and the device is reset. It is specifically intended for use with Square D PowerPact M-frame breakers, integrating with the breaker's trip mechanism as an optional safety accessory. Powered by 48 VDC control input, this undervoltage trip accessory supports standard configurations used in industrial control panels and power distribution networks.