Siemens HED42B040 – 40A 2 Pole Molded Case Circuit Breaker Authentic

Designed for robust industrial power distribution, this 40-amp, two-pole breaker provides essential long-time and instantaneous trip functions. The bolt-on unit is engineered to fit Siemens Sentron panelboards and SB switchboards, ensuring stable connections for critical branch circuits. With an impressive 100kAIC rating at 240VAC and 42kAIC at 480VAC, it handles severe fault currents. For future upgrades, this model crosses over to the 3VA5140-6EC21-0AA0 using a specific strap kit.