32A 4 Pole 10kA MCB D Curve – WKC432D
18th Ed. Compliant
2-Year Warranty
UK Stock
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The WKC432D is a 32A 4 pole 10kA Miniature Circuit Breaker (MCB) built for three-phase + neutral protection. With a D Curve trip profile, it is designed for very high inrush load circuits such as welders, transformers, heavy-duty motors, compressors, and industrial machinery. It is widely specified in industrial boards,...
The WKC432D is a 32A 4 pole 10kA Miniature Circuit Breaker (MCB) built for three-phase + neutral protection. With a D Curve trip profile, it is designed for very high inrush load circuits such as welders, transformers, heavy-duty motors, compressors, and industrial machinery. It is widely specified in industrial boards, EV charging infrastructure, and solar PV systems.
Tested to 10kA breaking capacity, the WKC432D ensures safe overload and short-circuit protection with full isolation of all phases and the neutral. It is DIN-rail mounted, bi-directional, and compliant with BS 7671 (18th Edition).
Installer Tip: Choose the 32A D Curve breaker for medium-to-large industrial circuits with significant inrush currents, such as welders and compressors. Verify fault level ≤10kA before installation.
Key Features
- 32A 4 Pole MCB – D Curve trip profile
- 10kA breaking capacity – industrial-grade protection
- Four-pole isolation: L1, L2, L3 + Neutral
- Bi-directional feed: install top or bottom
- DIN-rail mounted: 18mm per pole
- Conforms to BS 7671 (18th Edition)
Compare WKC 4 Pole 10kA MCBs (D Curve)
| Model | Rating | Curve | Breaking Capacity |
|---|---|---|---|
| WKC425D | 25A | D Curve | 10kA |
| WKC432D (This Product) | 32A | D Curve | 10kA |
| WKC440D | 40A | D Curve | 10kA |
| WKC450D | 50A | D Curve | 10kA |
What applications is the WKC432D best for?
It is ideal for welders, compressors, transformers, and heavy-duty motor circuits with very high inrush currents.
Why choose a D Curve breaker over C Curve?
D Curve breakers handle much higher inrush currents, preventing nuisance tripping in industrial environments.
Is the WKC432D suitable for EV setups?
Yes — it’s often used in industrial EV infrastructure where equipment creates high start-up currents, provided fault levels ≤10kA.
Does this breaker meet UK regulations?
Yes, it complies with BS 7671 (18th Edition) and IEC/EN 60898-1.
- Model: WKC432D
- Type: Miniature Circuit Breaker (MCB)
- Current Rating: 32A
- Curve: D Curve
- Poles: 4P (L1, L2, L3 + Neutral)
- Breaking Capacity: 10kA
- Mounting: 35mm DIN rail, 18mm width per pole
- Dimensions: Approx. 72mm (W) x 90mm (H) x 77mm (D)
- Compliance: BS 7671 (18th Edition), IEC/EN 60898-1
- Brand: WCED
The WKC432D must be installed by a qualified electrician in compliance with BS 7671.
- DIN rail mounted (18mm per pole)
- Ensure system fault current ≤10kA
- For heavy inrush load applications (D Curve)
- Tighten terminals to specified torque
- Check enclosure space accommodates 4P breakers
