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Mini moulded case circuit breaker - BCP-63

Mini moulded case circuit breaker - BCP-63

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Mini molded case circuit breaker - BCP-63 is the protection device in the power circuit: it trips on overload or fault so the damage stops before the alternator or the installation.

Ageing is counted in trip operations and in environment: dust, moisture and heat degrade the mechanism. On site panels, check terminal torque every year — most nuisance trips start there.

Specifications and compatibility

Brand
BCP
Model
100A 3P + N
Pole
1P + N

How to verify before ordering

  • Match rated current, trip curve (B/C/D) and breaking capacity to the circuit it protects.
  • Check whether the panel uses a moulded case, DIN rail or open-frame breaker, and how many poles.
  • Confirm the kA rating: fitting one below the original leaves the panel unprotected against short circuit.
  • The reference shown on this listing is 100A 3P + N; cross-check it against the one stamped on the removed part.

Frequently asked questions

Why does the breaker trip when the set starts?

The motor inrush or the transformer magnetising current crosses the instantaneous threshold. It is solved with the right curve (type D or a short-delay setting), not by raising the rating without recalculating the cable.

Can I replace it with a higher amperage one?

Not without recalculating cable and alternator. A larger breaker leaves the cable unprotected and pushes the damage into the winding.

Related parts

See the spare parts catalogue or request a quotation quoting the equipment reference. Third-party trademarks are cited for identification purposes only.

Specifications

Pole 1P, 2P, 3P, 4P, 3P + N, 1P + N
Model 20A 3P, 20A 1P, 20A 4P, 20A 3P+N, 20A 2P, 30A 1P, 30A 2P, 30A 3P, 30A 4P, 30A 3P+N, 40A 1P, 40A 2P, 40A 3P, 40A 4P, 40A 3P+N, 50A 1P, 50A 2P, 50A 3P, 50A 4P, 50A 3P+N, 32A 1P, 32A 2P, 32A 3P, 32A 4P, 32A 3P+N, 63A 1P, 63A 2P, 63A 3P, 63A 4P, 63A 3P+N, 80A 1P, 80A 2P, 80A 3P, 80A 4P, 80A 3P+N, 100A 1P, 100A 2P, 100A 3P, 100A 4P, 100A 3P+N
Brand BCP