Eaton KD3400F Molded Case Circuit Breaker With Shunt Trip

The Eaton KD3400F molded case circuit breaker is rated for 400 A at 600 V in a 3‑pole configuration and includes an auxiliary contact plus a shunt‑trip option for remote trip control. Built as a molded case device, it provides reliable overcurrent protection for electrical distribution panels, motor control centers, and other multi‑branch installations where high‑current protection and remote trip capability are required. The 3‑pole design supports three‑phase circuits, enabling coordinated protection across phases, while the auxiliary contact offers signaling to control circuits or interlocks without affecting the primary current path. The shunt‑trip feature allows a remote disconnect triggered by external control devices, safety interlocks, or emergency shutdown systems, improving safety and response times in industrial environments. This KD3400F unit combines Eaton’s attention to durable construction with convenient field wiring options and compatibility with standard panelboard or MCCB installations, making it suitable for applications demanding robust protection and remote control of high‑current circuits.