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The Niglon 4CBR-125 is a 125A four-pole CBR — a moulded-case circuit breaker (MCCB) combined with an integral residual current device. It delivers overload, short-circuit and earth-fault protection for main and sub-main three-phase distribution in one device.

Adjustable thermal release (0.8–1.0 In), fixed magnetic protection and an adjustable earth-fault threshold (100 / 300 / 500mA) with adjustable time delay (50 / 500 / 800ms) allow the protection to be tuned to the installation. Rated 400/415V with a high short-circuit breaking capacity.

Key features

  • 125A four-pole MCCB with integral RCD
  • Adjustable earth-fault: 100 / 300 / 500mA
  • Adjustable time delay: 50 / 500 / 800ms
  • Adjustable thermal release (0.8–1.0 In)
  • High short-circuit breaking capacity
  • Accessories available (aux/alarm/shunt/UVT)

Specification

  • Rated current: 125A
  • Poles: 4
  • Voltage: 400/415V AC
  • Earth-fault threshold: 100 / 300 / 500mA (adjustable)
  • Time delay: 50 / 500 / 800ms (adjustable)
  • Thermal release: 0.8–1.0 In (adjustable)
  • Standards: IEC 61439-1, IEC 62208, IEC 60529, IEC 62262

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