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The WKC425B is a 25A 4 pole 10kA Miniature Circuit Breaker (MCB) designed for three-phase + neutral circuits. With a B Curve trip profile, it is best used for resistive loads such as lighting banks, socket circuits, and small distribution panels in commercial three-phase boards, EV distribution units, and solar PV systems.

Rated at 10kA breaking capacity, the WKC425B ensures reliable overload and short-circuit protection with complete neutral isolation. It is DIN-rail mounted, bi-directional, and fully compliant with BS 7671 (18th Edition).

Installer Tip: The 25A B Curve breaker is a good choice for general socket or small power distribution circuits. Always confirm fault levels do not exceed 10kA before selection.

Key Features

  • 25A 4 Pole MCB – B Curve trip characteristic
  • 10kA breaking capacity – suited for commercial & industrial boards
  • Neutral protection: 4P switching (L1, L2, L3, N)
  • Bi-directional feed: cable entry top or bottom
  • DIN-rail mounted: 18mm per module
  • Conforms to BS 7671 (18th Edition)

Compare WKC 4 Pole 10kA MCBs (B Curve)

Model Rating Curve Breaking Capacity
WKC420B 20A B Curve 10kA
WKC425B (This Product) 25A B Curve 10kA
WKC432B 32A B Curve 10kA
WKC440B 40A B Curve 10kA
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