32A 4 Pole 10kA MCB B Curve – WKC432B
18th Ed. Compliant
2-Year Warranty
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The WKC432B is a 32A 4 pole 10kA Miniature Circuit Breaker (MCB) for three-phase + neutral protection. With its B Curve trip profile, this breaker is suited for resistive load circuits such as general socket banks, lighting, and small sub-distribution panels across commercial three-phase boards, EV charger setups, and solar...
The WKC432B is a 32A 4 pole 10kA Miniature Circuit Breaker (MCB) for three-phase + neutral protection. With its B Curve trip profile, this breaker is suited for resistive load circuits such as general socket banks, lighting, and small sub-distribution panels across commercial three-phase boards, EV charger setups, and solar PV systems.
Rated with a 10kA breaking capacity, the WKC432B ensures safe disconnection under overload or short-circuit conditions. It provides full neutral isolation, is DIN-rail mounted, bi-directional, and built to BS 7671 (18th Edition) standards.
Installer Tip: The 32A B Curve is a common choice for socket outlet circuits or distribution sub-boards with resistive loads. Confirm fault level does not exceed 10kA before use.
Key Features
- 32A 4 Pole MCB – B Curve characteristic
- 10kA breaking capacity – compliant for commercial & industrial boards
- Neutral isolation: 4P switching (L1, L2, L3, N)
- Bi-directional: Feed from top or bottom
- DIN-rail mountable: 18mm width per pole
- Meets BS 7671 (18th Edition) compliance
Compare WKC 4 Pole 10kA MCBs (B Curve)
| Model | Rating | Curve | Breaking Capacity |
|---|---|---|---|
| WKC425B | 25A | B Curve | 10kA |
| WKC432B (This Product) | 32A | B Curve | 10kA |
| WKC440B | 40A | B Curve | 10kA |
| WKC450B | 50A | B Curve | 10kA |
What applications suit the WKC432B?
It is commonly used for socket circuits, lighting groups, or small sub-distribution boards with resistive loads.
Why would I choose a 4-pole breaker?
It isolates and protects the neutral in addition to all three phases, essential for three-phase + N circuits.
Is the WKC432B suitable for EV charger setups?
Yes, if the load is resistive and fault level ≤10kA. For inductive EV circuits, consider a C Curve model.
Does it meet compliance standards?
Yes, it complies with BS 7671 (18th Edition) and IEC/EN 60898-1.
- Model: WKC432B
- Type: Miniature Circuit Breaker (MCB)
- Current Rating: 32A
- Curve: B Curve
- Poles: 4P (L1, L2, L3 + Neutral)
- Breaking Capacity: 10kA
- Mounting: 35mm DIN rail, 18mm per module
- Dimensions: Approx. 72mm (W) x 90mm (H) x 77mm (D)
- Standards: BS 7671 (18th Edition), IEC/EN 60898-1
- Brand: WCED
Installation must be carried out by a qualified electrician under BS 7671 regulations.
- DIN rail mount, 18mm per pole
- Check prospective fault current ≤10kA
- Designed for resistive load circuits (B Curve)
- Apply correct tightening torque to terminals
- Allow space for 4P switching devices in enclosure
