Siemens SJD69400 U Three Phase Circuit Breaker

Siemens SJD69400 U is a three‑pole molded‑case circuit breaker (MCCB) rated for 400 A at up to 600 V AC, part of the Sentron SJD family. It employs an electronic trip unit (Sensitrip) to provide long‑time and instantaneous protection for three‑phase circuits. The device offers an interrupting capacity of 25 kAIC at 600 V and 35 kAIC at 480 V, making it suitable for feeders, motor circuits, and panelboards in industrial power distributions. Designed for use in commercial and industrial electrical systems, the SJD69400 U helps protect equipment and wiring from short circuits while enabling reliable protection in 3‑phase applications.