Industrial MG24426 Supplementary Protector

MG24426 is a 1-pole supplementary protector from Schneider Electric’s Square D Multi9 family, designed to be installed on the load side of a circuit to add extra overcurrent protection for sensitive electronics. It is rated for 277 V AC at 2 A, with a C-curve trip characteristic and UL 1077 recognition, making it suitable for protecting computers, microprocessors, and electronic controllers within 50/60 Hz systems. The unit is DIN-rail mountable and compact, with dimensions about 81 mm long, 18 mm wide, and 75 mm high per pole. This MG24426 device is intended to complement main protection by providing targeted protection for downstream equipment and is capable of withstanding short-circuit currents up to 5 kA at 277 V, depending on system conditions. It belongs to Square D's Multi9 supplementary protectors lineup and is used on the load side of branch circuits to guard delicate internal circuitry without requiring a full replacement of the primary protection scheme.