63A 4 Pole 10kA MCB C Curve – WKC463C
18th Ed. Compliant
2-Year Warranty
UK Stock
Free Delivery £30+
Secure Payments With
The WKC463C is a 63A 4 pole 10kA Miniature Circuit Breaker (MCB) engineered for three-phase + neutral protection. With its C Curve trip characteristic, it is designed for heavier inductive loads such as motors, pumps, HVAC systems, EV charger circuits, and commercial sub-distribution boards in industrial and commercial systems, EV...
The WKC463C is a 63A 4 pole 10kA Miniature Circuit Breaker (MCB) engineered for three-phase + neutral protection. With its C Curve trip characteristic, it is designed for heavier inductive loads such as motors, pumps, HVAC systems, EV charger circuits, and commercial sub-distribution boards in industrial and commercial systems, EV charging setups, and solar PV installs.
Tested to a 10kA breaking capacity, the WKC463C ensures dependable overload and short-circuit protection while providing full neutral disconnection. It is DIN-rail mounted, bi-directional, and fully compliant with BS 7671 (18th Edition).
Installer Tip: The 63A C Curve is the largest in the C Curve range. Use it for high-load inductive circuits where inrush currents are common — such as large HVAC compressors, industrial motors, and EV distribution panels. Confirm the installation fault level is ≤10kA.
Key Features
- 63A 4 Pole MCB – C Curve trip characteristic
- 10kA breaking capacity – robust protection for high-demand systems
- Four-pole isolation: protects L1, L2, L3 + Neutral
- Bi-directional feed: suitable for top or bottom install
- DIN-rail mounting: 18mm per module
- Tested to BS 7671 (18th Edition)
Compare WKC 4 Pole 10kA MCBs (C Curve)
| Model | Rating | Curve | Breaking Capacity |
|---|---|---|---|
| WKC450C | 50A | C Curve | 10kA |
| WKC463C (This Product) | 63A | C Curve | 10kA |
What applications is the WKC463C best for?
It’s ideal for heavy inductive loads such as large HVAC compressors, industrial motors, pumps, and EV distribution boards.
Why use a C Curve instead of a B Curve?
C Curve breakers handle higher inrush currents from inductive loads, reducing nuisance tripping compared to B Curve devices.
Can this be used in EV or PV installs?
Yes — the 63A C Curve is often specified for EV and PV systems with moderate to heavy inrush currents, as long as the system fault level ≤10kA.
Does it comply with UK standards?
Yes, it is manufactured to BS 7671 (18th Edition) and IEC/EN 60898-1 standards.
- Model: WKC463C
- Type: Miniature Circuit Breaker (MCB)
- Current Rating: 63A
- Curve: C 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 WKC463C must be installed by a qualified electrician in accordance with BS 7671 wiring regulations.
- Mount on 35mm DIN rail (18mm per pole)
- Ensure prospective fault current ≤10kA
- For inductive/high inrush load circuits (C Curve)
- Tighten terminals to recommended torque
- Allow sufficient space in enclosure for 4-pole devices
