Air Circuit Breakers – Winmaster 2

Conforms to IS/IEC 60947-2 & IEC 60947-2


  • Rating: 630A~3200A
  • Poles: 3P & 4P
  • Frame Size: 2500AF & 3200AF
  • Version: Fixed – Manual & Electrical and Drawout – Manual & Electrical


  • Breaking capacity upto 65kA
  • Common accessories across the range
  • Modular construction with most compact dimensions
  • High mechanical & electrical operating life
  • Intelligent micropro releases with communication protocol (modbus / profibus) RS485
  • Termination options : horizontal / vertical / front
  • Breaker operating trucks for easy handling of breakers
  • Interchangeable trip units for same thermal ratings
  • Maximum of 6NO/6NC potential free contacts for customer wiring

WiNmaster2 Power Circuit Breakers are a new generation of Air Circuit Breakers having modular construction to offer a truly global product platform meeting IEC, ANSI and UL standards. A line of Three and Four pole devices ranging from 630 to 3200 Amp in two basic frames with fault interruption ratings of up to 65kA. A design offering a unique combination of High Fault current withstands ratings, short fault interruption time and zone selectivity. The device includes the new state-of-the-art MicroPro2 intelligent trip unit that enables the circuit breaker with the latest technology for system safety, reliability, measurement, relaying and communications using the Modbus, Profibus or device net protocol.

  • Simple to operate and maintain
  • Very high dielectric strength even in hot and humid conditions due to use of b and f class insulating materials
  • Widely used in industries to provide protection to systems under fault conditions
  • Error free and user friendly setting of current and time delay
  • Provides highest degree of system protection co-ordination
  • Visual fault discrimination by LEDs
  • Function Blocking facility provided