Reliable Protection for AC Distribution Circuits

The OS47-63 Series AC Miniature Circuit Breaker is designed to protect low-voltage electrical circuits against overload and short-circuit faults.

The breaker uses a thermal-magnetic tripping mechanism to disconnect the circuit automatically when abnormal current conditions occur, helping protect cables, electrical equipment and connected loads.

The series is available in multiple rated currents, pole configurations and tripping characteristics to meet different distribution requirements. Typical options include 6 A to 63 A, 1P / 2P / 3P / 4P, and B / C / D trip curves.

With a breaking capacity of up to 6 kA and standard 35 mm DIN rail mounting, the OS47-63 Series is suitable for distribution boards, control panels, residential electrical systems, commercial buildings and general industrial applications.

Its modular structure allows easy installation, replacement and maintenance in standard low-voltage distribution equipment.

Key Features

  • Overload protection
  • Short-circuit protection
  • Thermal-magnetic tripping
  • Rated current options up to 63 A
  • B / C / D trip curves available
  • 1P / 2P / 3P / 4P configurations
  • 6 kA breaking capacity
  • 230/400 V AC applications
  • 35 mm DIN rail mounting
  • Suitable for residential, commercial and industrial systems

Typical Applications

  • Residential distribution boards
  • Commercial buildings
  • Industrial control panels
  • Lighting circuits
  • Socket circuits
  • Small machinery
  • HVAC equipment
  • General low-voltage AC distribution