VSC3SCO is a 3-pole medium voltage vacuum contactor under ABB ConVac 7 series, rated at 7.2kV / 400A. It adopts ceramic vacuum interrupters to extinguish electric arc without open flame, perfectly matching explosion-proof marine and offshore power distribution environments. The integrated three-pole structure realizes synchronous switching of three-phase circuits, supporting frequent on-off operation for high-voltage fans, air compressors and capacitor banks on vessels. Multiple terminal blocks provide control, status feedback and interlock signal interfaces for connection with engine room PLC central control system. Flame-retardant insulated modular housing withstands high temperature and salt fog, widely used as original spare parts for marine medium voltage power plant systems.
