ABB’s VD4/VD4 EVO: Standard and Versatile Circuit Breakers for all Primary Applications

October 7, 2026

VD4 is ABB’s flagship medium voltage vacuum circuit breaker, trusted by over 2 million installations worldwide. The proven standard VD4 (up to 46 kV) continues to deliver reliability with minimal maintenance. VD4 evo (up to 17.5 kV, 2000 A, 40 kA) is the advanced evolution of VD4, available in Standard or Digital variants. The Digital version optionally integrates sensors and a concentrator for real-time monitoring, predictive maintenance, and enhanced safety—delivering up to 30% risk reduction in power outages and 60% improvement in operational efficiency. Monitoring capability is entirely optional; choose what fits your needs.

VD4

VD4, up to 46 kV, is a medium voltage vacuum circuit breaker with mechanical actuator (spring mechanism) for primary distribution. With a global installed base of over 2 million units, VD4 can perform 30,000 overhaul-free* mechanical operations on most ratings. 

ABB's VD4/VD4 EVO: Standard and Versatile Circuit Breakers for all Primary Applications

Powerful and versatile circuit breaker ideal for various applications like capacitor bank switching and marine environments. Modular spring-operated mechanical actuator ensuring easy operation even without auxiliary supply. VD4 features a compact plug-and-play actuator (EL type), compatible with a range of accessories, safety locks and interlocks.

Technical features

  • Rated voltage: up to 46 kV
  • Rated current: up to 4,000 A
  • Rated short circuit current: up to 63 kA

VD4 evo

The next generation of ABB’s VD4 is called VD4 evo. VD4 evo up to 17.5 kV, is available with integrated sensors for monitoring and diagnostics of critical parameters for remote asset management, maintenance optimization and operational cost reduction. 

VD4 evo, up to 17.5 kV, has possibility to equip it with optional sensors for monitoring and diagnostics of critical parameters, including thermal, mechanical, and electrical performance – facilitating remote asset management, optimizing maintenance schedules and reducing operational costs. VD4 evo can be directly integrated with ABB’s ZEE600 SCADA solution enabling a direct cloud connection or alternatively integrated with a third-party SCADA and gateway.

Technical features

  • Rated voltage: up to 17.5 kV
  • Rated current: up to 1,250 A
  • Rated short circuit current: up to 40 kA
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