4 pole 10kA MCB's 10A B Curve WKC410B
18th Ed. Compliant
2-Year Warranty
UK Stock
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The WKC410B is a 10A 4 pole 10kA Miniature Circuit Breaker (MCB) designed for three-phase + neutral circuits. With a B Curve trip characteristic, it is suited for resistive loads such as lighting and socket circuits across three-phase distribution boards, EV installations, and solar PV systems. Engineered with a 10kA...
The WKC410B is a 10A 4 pole 10kA Miniature Circuit Breaker (MCB) designed for three-phase + neutral circuits. With a B Curve trip characteristic, it is suited for resistive loads such as lighting and socket circuits across three-phase distribution boards, EV installations, and solar PV systems.
Engineered with a 10kA breaking capacity, the WKC410B ensures overload and short-circuit protection while providing complete phase and neutral isolation. It is DIN-rail mountable, bi-directional, and compliant with BS 7671 (18th Edition).
Installer Tip: The 10A B Curve unit is ideal for small power or lighting sub-circuits. Use where inrush current is minimal and ensure board fault level does not exceed 10kA.
Key Features
- 10A 4 Pole MCB – B Curve characteristic
- 10kA breaking capacity – safe for commercial & industrial installs
- Full neutral switching – 4P protection (L1, L2, L3, N)
- Bi-directional – top or bottom feed connection
- DIN-rail mounted – 18mm width per pole
- Complies with BS 7671 (18th Edition)
Compare WKC 4 Pole 10kA MCBs (B Curve)
| Model | Rating | Curve | Breaking Capacity |
|---|---|---|---|
| WKC406B | 6A | B Curve | 10kA |
| WKC410B (This Product) | 10A | B Curve | 10kA |
| WKC416B | 16A | B Curve | 10kA |
| WKC420B | 20A | B Curve | 10kA |
What loads should a 10A B Curve MCB protect?
It is typically used for small lighting or socket circuits with minimal inrush current.
Why choose a 4-pole MCB?
It isolates all three phases plus neutral, making it essential in balanced three-phase + N systems and EV or PV installs.
Can the WKC410B be used in an EV charger circuit?
Yes, if the load is resistive and fault levels do not exceed 10kA. For inductive charger loads, a C curve may be more suitable.
What standard does the WKC410B comply with?
It meets BS 7671 (18th Edition) and IEC/EN 60898-1 requirements.
- Model: WKC410B
- Type: Miniature Circuit Breaker (MCB)
- Current Rating: 10A
- Curve: B Curve
- Poles: 4P (L1, L2, L3 + Neutral)
- Breaking Capacity: 10kA
- Mounting: DIN rail, 18mm per module
- Dimensions: Approx. 72mm (W) x 90mm (H) x 77mm (D)
- Compliance: BS 7671 (18th Edition), IEC/EN 60898-1
- Brand: WCED
Installation must be completed by a qualified electrician under BS 7671 wiring regulations.
- Mount on standard 35mm DIN rail
- Check board fault level ≤10kA
- Use only on resistive load circuits (lighting/sockets)
- Ensure correct torque settings on terminals
- Provide adequate space for 4P switching devices
