Square D MJA36400 – 400A 3 Pole Molded Case Circuit Breaker Price Cut

Engineered for robust power distribution, the Square D MJA36400 is a 3-pole, 400A electronic trip MCCB from the PowerPacT M-Frame series. This unit utilizes an I-Line mounting configuration for use with Square D I-Line panelboards and switchboards. It provides an ideal upgrade path for replacing legacy MA and MH frame breakers. The integrated ET 1.0 trip unit offers adjustable magnetic and fixed thermal settings (LI) to optimize coordination. It delivers a 65kAIC rating at 480VAC.