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The WMC163C is a 63 A single-pole 6 kA Miniature Circuit Breaker (MCB) designed for large feed and distribution circuits where inrush currents from motors, welders or transformers demand higher tolerance. Its C-curve tripping profile (5–10 × In) provides robust inrush immunity while ensuring rapid disconnection during short-circuits and overloads.
Fully tested to BS EN 60898, the WMC163C fits all Whitecliffe consumer units and standard DIN-rail enclosures. It delivers 6 kA breaking capacity and 20 000 mechanical operations for long-term performance in domestic, commercial and light-industrial environments.
Installer Tip: Use 63 A C-curve breakers for main feed or distribution circuits where motors and transformers are present. Confirm Zs, voltage drop and cable capacity against BS 7671 limits before commissioning.
- 63 A rated current with C-curve (5–10 × In) tripping characteristic
- 6 kA breaking capacity at 230/400 V AC
- Single-pole design – 18 mm module width
- DIN-rail mounted for consumer units and distribution boards
- Complies with BS EN 60898 and BS 7671 (18th Edition A2)
- Service life – 20 000 mechanical / 8 000 electrical operations
| Part Code | Rating | Curve | Typical Use |
|---|---|---|---|
| WMC150C | 50 A | C | Feed and plant circuits with high inrush |
| WMC163C | 63 A | C | Main feeds and distribution boards |
The WMC163C delivers 6 kA fault protection for main feeds and distribution circuits. For standard resistive loads, choose a B Curve MCB; for added earth-fault protection, use our Type A RCBOs.
