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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 |
