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6 Cards in this Set

  • Front
  • Back

MCB

Miniature Circuit Breaker

MCB functions

Over current - thermal action


Short circuit - magnetic action

HRC

High rupturing capacity fuses

HRC rupturing capacity vs MCB rupturing capacity

80kA as opposed to 6kA

Rewireable Fuses

1kA, 2kA or 4kA

MCB types

Type B - tripping facor of 1.25


Type C - tripping factor of 1.5


Type D - tripping factor of 1.75-2.5