B2 series products are hydraulic electromagnetic circuit breakers designed and developed by our company using international advanced technology. The circuit breaker is composed of shell, operating mechanism, contact arc extinguishing system and hydraulic solenoid valve tripping device. The circuit breaker is used for overload and short-circuit protection of the circuit in the electrical system with rated current 1A to 50A, AC 50/60Hz, rated voltage AC 250V and DC80V and below, and can also be used for infrequent switching and breaking. . Widely used in computer and its peripheral equipment,
industrial automation equipment, telecommunications equipment, communication power supply and other systems and UPS equipment, railway locomotives, marine electrical systems, elevator control systems and mobile power supply



  • Maximum voltage: 277VAC 50/60 Hz, 80VDC
  • Current level: 1A to 50A
  • Auxiliary switch: SPDT, 5A 250VAC, 1.0A 80VDC, 0.1A 125VAC
  • Working environment: -40°C to +85°C
  • Operating mode: manual reset
  • Number of poles: 1 pole, 2 poles, 3 poles
  • Certification: CCC / VDE / UL 1077 / UL489