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The WKC406B is a 6A 4 pole 10kA Miniature Circuit Breaker (MCB) designed for three-phase + neutral circuits. With a B Curve trip characteristic, it is ideal for protecting resistive loads such as lighting and socket circuits in commercial boards, solar PV arrays, and EV charger distribution.
Built with a 10kA breaking capacity, the WKC406B provides overload and short-circuit protection while also offering full neutral disconnection. It is DIN-rail mounted, bi-directional, and compliant with BS 7671 (18th Edition).
Installer Tip: Use the 6A B Curve model for small lighting or control circuits where low fault current protection is sufficient. Always confirm the fault level does not exceed 10kA before selection.
Key Features
- 6A 4 Pole MCB – B Curve characteristic
- 10kA breaking capacity – suitable for commercial & industrial boards
- Neutral switching – 4P protection across L1, L2, L3, N
- Bi-directional – feed top or bottom
- DIN-rail mount – 18mm per module
- Complies with BS 7671 (18th Edition)
Compare WKC 4 Pole 10kA MCBs (B Curve)
| Model | Rating | Curve | Breaking Capacity |
|---|---|---|---|
| WKC406B (This Product) | 6A | B Curve | 10kA |
| WKC410B | 10A | B Curve | 10kA |
| WKC416B | 16A | B Curve | 10kA |
| WKC420B | 20A | B Curve | 10kA |
