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  • WRB series miniature circuit breaker
  • Product Description:
  • WRB6-100 series miniature circuit breaker is a new generation of miniature circuit breaker independently developed by our company. It is suitable for AC 50/60Hz, rated voltage 230/400V, rated current up to 100A power line facilities and electrical equipment for overload and short circuit protection. It can also be used for infrequent switching operations. Suitable for low-voltage terminal distribution in the fields of industrial, civil construction, energy and infrastructure.

    Products comply with IEC60898-1, GB10963.1 standards


◆ 18mm / pole rated current up to 100A

◆ The installation card has a pull-out function, which is more convenient for installation and disassembly.

◆ With contact indication window, reliable indication of contact status


◆ Overload protection

◆ Short circuit protection

◆ Infrequent switching operations

WRB6-100 miniature circuit breaker
Number of poles1P/2P/3P/4P
Frequency f (Hz)50/60Hz
Rated operating voltage Ue (VAC)Unipolar: 230V/400V
Dipole/Terminal/Quad: 400V
Rated operating current In (A)6, 10, 16, 20, 25, 32, 40, 50, 63, 80, 100
Rated insulation voltage Ui(V)500
Rated impulse voltage Uimp(kV)6
Instantaneous trip typeTypes B, C, and D
Rated short-circuit breaking capacity Icn(kA)6
Service lifeMechanical life10,000 times
Electrical life6000 times
Protection levelIP20
Pollution levellevel 2
Installation methodDIN standard rail
Installation categoryClass II, III
Ambient temperature (°C)-25°C-+60°C
Altitude (m)≤2000m
relative humidityNot more than 50% at +40°C and no more than 90% at +25°C
Installation EnvironmentNo obvious vibration and shock


WR B 6 100 B、C、D 100、80、63、50、40、32、20、16、10、6 4P、3P、2P、1P 


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