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VB2-63 Series 4P Miniature Circuit Breaker (MCB)

The VB2-63 Series is a miniature circuit breaker (MCB) for low-voltage circuit protection, available in 1P to 4P configurations with rated current from 1A to 63A. It supports 230/400VAC and 48/60VDC (1P/2P) operation, with a rated impulse withstand voltage of 6kV and Icn up to 10kA.

Highlights

  • 10kA rated short-circuit capacity for circuit protection
  • Rated impulse withstand voltage up to 6.0kV
  • Fast contact closing for extended electrical life
  • Dual tunnel and busbar terminals for flexible wiring
  • Detachable phase separators for flexible insulation configuration
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Product Information

  • Rated current (In): 1A, 2A, 3A, 4A, 6A, 8A, 10A, 13A, 16A, 20A, 25A, 32A, 35A, 40A, 50A, 63A
  • Rated operational voltage (Ue): AC230/400V (50/60Hz)
  • Rated insulation voltage (Ui): 690V
  • Rated impulse withstand voltage (Uimp): 6.0kV
  • Number of poles: 4P
  • Environmental Tolerance: High voltage resistance up to Uimp 6.0kV
  • Standard Compliance: IEC 60898-1
  • Wiring & Mounting: Tunnel and busbar terminal options (1.0–25mm² capacity)
  • Quick-closing mechanism ensures reliable operation and extends contact service life
  • Low internal temperature-rise design for superior energy efficiency and thermal safety
  • Supports high impulse withstand voltage up to 6.0kV against grid surge impacts
  • Dual tunnel and busbar terminal design enables fast, secure, and flexible wiring
  • Modular structure allows effortless combination and versatile installation options

Intelligent manufacturing

Integrated production, testing and engineering capabilities built for consistent quality at scale.

Automated Production

Automated & semi-automated assembly and inspection

Integrated Manufacturing

Stamping · Welding · Injection Molding

Quality & Testing

RoHS · Performance Testing · Process Inspection

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