50A 2 Pole 10kA MCB – C Curve (WKC250C)
18th Ed. Compliant
2-Year Warranty
UK Stock
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The WKC250C is a 50 A 2 Pole 10 kA Miniature Circuit Breaker (MCB) designed for high-demand single-phase or split-load circuits with moderate inrush current. With a C-curve tripping profile, it provides reliable protection for plant equipment, heating systems, and heavy lighting circuits where initial surge current may exceed B-curve...
The WKC250C is a 50 A 2 Pole 10 kA Miniature Circuit Breaker (MCB) designed for high-demand single-phase or split-load circuits with moderate inrush current. With a C-curve tripping profile, it provides reliable protection for plant equipment, heating systems, and heavy lighting circuits where initial surge current may exceed B-curve thresholds.
Built for safety and performance, this 2-pole MCB disconnects both live conductors simultaneously to comply with BS EN 60898-1. Its compact 36 mm housing fits any 35 mm DIN rail, suitable for consumer units, industrial enclosures, and commercial distribution boards.
Installer Tip: A 50 A C-curve MCB offers the best balance for circuits with higher startup loads — for example, industrial heaters or control panels. For heavier mechanical loads such as compressors, move to the D-curve version.
Key Features
- 50 A rated – suited to plant rooms, industrial lighting, and heavy spurs
- 10 kA breaking capacity – withstands high commercial fault currents
- 2-pole isolation – disconnects both live conductors simultaneously
- C-curve tripping – handles moderate inrush on larger electrical loads
- Bi-directional terminals – top or bottom feed flexibility
- 36 mm (2 modules) – compact DIN-rail footprint
- Complies with IEC/EN 60898-1 and 18th Edition Wiring Regs
Compare 2 Pole 10 kA MCB Variants
| Model | Rating | Curve |
|---|---|---|
| WKC250B | 50 A | B Curve |
| WKC250C (This Product) | 50 A | C Curve |
| WKC250D | 50 A | D Curve |
What is a 50 A C-curve MCB used for?
Ideal for higher-load circuits like plant equipment, heavy lighting banks, or electric heating systems where startup surge needs extra tolerance.
Does it isolate both conductors?
Yes – dual-pole design disconnects both live lines at once for full isolation and safety.
Can this MCB be used in industrial control panels?
Yes – it’s commonly specified for control panels and distribution spurs feeding machinery or heating loads.
Is it BS EN 60898-1 compliant?
Yes – certified to BS EN 60898-1 and compliant with the 18th Edition Wiring Regulations.
- Model: WKC250C
- Poles: 2
- Rated Current: 50 A
- Curve Type: C
- Breaking Capacity: 10 kA
- Operating Voltage: 230/400 V AC
- Mounting: 35 mm DIN rail (EN 60715)
- Width: 36 mm (2 modules)
- Standard: IEC/EN 60898-1
- Applications: Plant equipment, heaters, industrial lighting, feeders
Install by a qualified electrician in accordance with BS 7671. Confirm correct circuit design, cable sizing, and breaker curve before energising.
- Mount on 35 mm DIN rail (EN 60715)
- Torque terminals to 2.0–2.5 Nm
- Test insulation and polarity prior to connection
- Clearly label all circuits in the distribution schedule
