The BW9FRG0 is a circuit breaker trip accessory manufactured by FUJI ELECTRIC. With its field-installable shunt trip feature, this accessory allows for remote tripping of circuit breakers. Its left or right side mount and 24VAC/VDC coil voltage make it versatile and compatible with various systems. Perfect for use with FUJI ELECTRIC 125A and 250A frame MCCBs, this circuit breaker trip accessory ensures efficient and reliable circuit protection.