16A 4 Pole 10kA MCB D Curve – WKC416D
18th Ed. Compliant
2-Year Warranty
UK Stock
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The WKC416D is a 16A 4 pole 10kA Miniature Circuit Breaker (MCB) designed for three-phase + neutral protection. With its D Curve trip characteristic, it is engineered for high inrush load circuits such as transformers, welders, heavy-duty motors, and industrial machinery in commercial and industrial boards, solar PV systems, and...
The WKC416D is a 16A 4 pole 10kA Miniature Circuit Breaker (MCB) designed for three-phase + neutral protection. With its D Curve trip characteristic, it is engineered for high inrush load circuits such as transformers, welders, heavy-duty motors, and industrial machinery in commercial and industrial boards, solar PV systems, and EV charging setups.
Tested to 10kA breaking capacity, the WKC416D provides reliable overload and short-circuit protection while disconnecting all phases and the neutral. It is bi-directional, DIN-rail mountable, and fully compliant with BS 7671 (18th Edition).
Installer Tip: The 16A D Curve breaker is suited for circuits with high inrush demand, including welders and transformer primaries. Always verify the system fault current ≤10kA before use.
Key Features
- 16A 4 Pole MCB – D Curve trip profile
- 10kA breaking capacity – heavy-duty fault handling
- Four-pole isolation: L1, L2, L3 + Neutral
- Bi-directional feed: install top or bottom
- DIN-rail mounted: 18mm width per pole
- Complies with BS 7671 (18th Edition)
Compare WKC 4 Pole 10kA MCBs (D Curve)
| Model | Rating | Curve | Breaking Capacity |
|---|---|---|---|
| WKC410D | 10A | D Curve | 10kA |
| WKC416D (This Product) | 16A | D Curve | 10kA |
| WKC420D | 20A | D Curve | 10kA |
| WKC425D | 25A | D Curve | 10kA |
What applications is the WKC416D suited for?
It is commonly used in circuits with high inrush currents such as welders, transformers, and heavy motors.
Why use a D Curve over a C Curve?
D Curve breakers tolerate very high inrush currents, whereas C Curve devices are for moderate inductive loads.
Can the WKC416D be used in EV charging systems?
Yes — in heavy-duty EV charging or industrial setups where inrush currents are significant, provided fault level ≤10kA.
Does the WKC416D meet compliance?
Yes, it is fully compliant with BS 7671 (18th Edition) and IEC/EN 60898-1 standards.
- Model: WKC416D
- Type: Miniature Circuit Breaker (MCB)
- Current Rating: 16A
- 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 WKC416D must be installed by a qualified electrician under BS 7671 wiring regulations.
- DIN rail mounted (18mm per pole)
- Confirm prospective fault current ≤10kA
- Use on heavy inrush load circuits (D Curve)
- Torque terminals to manufacturer settings
- Ensure enclosure space accommodates 4P devices
