Industrial RC-MSD4-630A Manual Service Disconnector

The RC-MSD4-630A Manual Service Disconnector is a high‑voltage isolation module for EV and HEV power systems, rated for up to 750 V DC and current up to 630 A within the MSD4 family. It integrates the disconnect switch and fuse links inside a compact housing to save installation space and simplify service, with a breaking structure designed for quick maintenance. The unit uses a plug‑and‑jack configuration, with front‑installed sockets and assistant‑lockable handles that secure the assembly, and it supports a high‑voltage interlock (HVIL) for safety. Designed for EV/HEV battery interconnections and DC power transmission, the MSD4 provides overcurrent and short‑circuit protection through its fused design and is offered in variants covering roughly 200–630 A at 750 V DC. In markets such as Asia and Europe, the RC‑MSD4 line includes models like RC‑MSD4‑200~630A/750V‑HA‑TW and RC‑MSD4‑Z‑H‑A‑TW, reflecting the range of current ratings available for 750 V DC systems.