Square D MA11027 Shunt Trip

MA11027 is a 24 VDC shunt-trip accessory for Square D MA and MH circuit breakers, enabling remote tripping of the breaker when the 24-volt control circuit is energized. This coil-based device integrates with MA/MH frame breakers to provide an additional safety control path in electrical panels and industrial control networks. The shunt-trip coil is rated at 24 VDC and draws 1.5 A, ensuring a robust trigger for remote shutdown applications. When energized, the MA11027 activates the breaker’s trip mechanism, interrupting current flow to protect personnel and equipment in emergency or controlled shutdown scenarios. Intended for use with Square D MA and MH family breakers, this accessory expands control options in machine rooms, manufacturing lines, and process control panels where remote interrupt capability is required. Installation should be performed by qualified personnel following the manufacturer's instructions for the MA/MH family and the MA11027 accessory, including correct wiring to the 24 VDC control circuit and secure mounting to the breaker assembly; verify compatibility with your specific model before purchase.