Description

Westinghouse 50 VCP 250 1200A 4.76 kV

The Westinghouse 50 VCP 250 1200A 4.76 kV vacuum circuit breaker is a medium‑voltage switching device engineered for dependable protection and control in power distribution systems operating at 4.76 kV class voltage levels. Designed for installation in metal‑clad switchgear, feeder sections, and distribution panels, this breaker uses vacuum interruption technology to provide fast, efficient arc extinction with minimal maintenance and long service life.

With a continuous current rating of 1200 A, the 50 VCP 250 model is suitable for feeder protection, transformer isolation, motor switching, and distribution circuits where reliable medium‑voltage performance and high interrupting capacity are required. The vacuum interrupters offer superior dielectric recovery and arc‑quenching characteristics compared with traditional oil or air interrupters, resulting in reduced wear, enhanced safety, and improved operational lifespan. Their sealed design eliminates issues associated with insulating gas leakage and contamination, making them ideal for industrial, utility, and petrochemical applications.

The breaker’s VCP (Vacuum Circuit Protector) series frame is engineered for rugged mechanical endurance and consistent performance in environments with frequent switching operations or high fault‑current conditions. The “250” designation typically refers to the breaker’s interrupting rating class or design series within the VCP lineup, providing reliable fault clearance in coordination with protective relays and system controls.

Additional design features often include electrically operated mechanisms for remote opening and closing, stored‑energy spring drives for rapid contact separation, and draw‑out or fixed mounting options compatible with switchgear systems. These characteristics simplify maintenance, reduce downtime, and facilitate integration with protective relays and automation systems for enhanced system monitoring and fault response.

Common applications for the Westinghouse 50 VCP 250 1200A 4.76 kV vacuum breaker include:

• Medium‑voltage feeder protection in industrial facilities

• Power distribution in utilities and substations

• Transformer and motor circuit protection

• Chemical, refinery, and petrochemical plant switchgear

• Retrofit and modernization of aging medium‑voltage equipment

Although Westinghouse no longer manufactures new equipment under this brand, many units remain operational in legacy installations or are refurbished by specialist suppliers to extend equipment life while meeting modern protection and safety standards.

Westinghouse 50 VCP 250 1200A 4.76kV Vacuum Circuit Breaker, Vacuum interrupter assembly, Racking mechanism (if draw-out style), Line and load terminals, Control wiring harness, Auxiliary switches (if included), Mounting hardware, Protective covers, User manual and wiring diagram, Test certificate (if applicable), Compliance and safety documentation, Manufacturer warranty card, Original Westinghouse packaging