6kA MCB – 6A 1 Pole C Curve (WMC106C)
£2.00
£3.40
18th Ed. Compliant
2-Year Warranty
UK Stock
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The WMC106C is a 6 A single-pole 6 kA Miniature Circuit Breaker (MCB) providing dependable overcurrent and short-circuit protection for lighting and auxiliary circuits with higher inrush current such as LED drivers, transformers and control gear. Its C-curve tripping characteristic (5–10 × In) offers greater tolerance to start-up surges while...
The WMC106C is a 6 A single-pole 6 kA Miniature Circuit Breaker (MCB) providing dependable overcurrent and short-circuit protection for lighting and auxiliary circuits with higher inrush current such as LED drivers, transformers and control gear. Its C-curve tripping characteristic (5–10 × In) offers greater tolerance to start-up surges while maintaining rapid fault disconnection under BS 7671.
Fully certified to BS EN 60898, the WMC106C fits Whitecliffe consumer units and standard DIN-rail enclosures. It delivers 6 kA breaking capacity and a service life of 20 000 mechanical operations for long-term reliability in domestic and light-commercial use.
Installer Tip: Use C-curve breakers where the circuit has inrush devices like LED drivers, transformers or small motors. Check fault-loop impedance (Zs) values to ensure compliance with BS 7671 disconnection times.
- 6 A rated current with C-curve (5–10 × In) tripping tolerance
- 6 kA breaking capacity at 230/400 V AC
- Single-pole design (18 mm module width)
- DIN-rail mounted – fits most 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 |
|---|---|---|---|
| WMC106B | 6 A | B | Standard lighting and socket circuits |
| WMC106C | 6 A | C | Lighting with LED drivers / control gear |
| WMC116C | 16 A | C | Radials or small motor circuits |
The WMC106C provides reliable 6 kA protection for lighting and auxiliary circuits that see moderate inrush. For standard domestic loads, choose a B Curve MCB; for combined earth-fault protection, see our Type A RCBOs.
When should I use a C Curve MCB instead of a B Curve?
C-curve MCBs are used on circuits with higher inrush currents such as LED lighting, transformers or motors. B-curve devices are best for standard domestic loads.
Is the WMC106C compatible with Whitecliffe consumer units?
Yes – it fits all Whitecliffe consumer units and standard DIN-rail enclosures.
Can this MCB protect circuits with LED lighting?
Yes, that’s its primary application – the C-curve profile accommodates the brief inrush from LED drivers and electronic ballasts.
What does 6 kA mean on the label?
It’s the breaker’s maximum fault current capacity – it can interrupt up to 6 000 A without damage. For higher fault levels, see our 10 kA MCBs.
Do you offer D Curve versions?
Yes – Type D (10–20 × In) is available on request for industrial circuits with very high inrush current. Contact our sales team for availability.
- Part Code: WMC106C
- Type: Single Pole MCB
- Rated Current (In): 6 A
- Curve: C (5–10 × In tripping characteristic)
- Rated Voltage (Ue): 230/400 V AC
- Rated Frequency: 50/60 Hz
- Breaking Capacity (Icn): 6 kA
- Insulation Voltage (Ui): 500 V
- Impulse Withstand (Uimp): 4 kV
- Dielectric Test Voltage: 2 kV for 1 minute
- Thermal Reference Temp: 30 °C
- Operating Temperature: –5 °C to +40 °C (avg < 35 °C)
- Mechanical Life: 20 000 operations
- Electrical Life: 8 000 operations
- Mounting: 35 mm DIN rail (1 module width)
- Standards: BS EN 60898; BS 7671:2018 (Amendment 2)
- Typical Applications: Lighting circuits with LED drivers, control gear or small motors
Install the WMC106C in a suitable consumer unit or distribution board by a qualified electrician. Match the rating and curve type to the circuit characteristics.
- Mount securely on 35 mm DIN rail with correct busbar alignment
- Select C-curve for lighting circuits with higher inrush (LEDs, transformers)
- Confirm 6 A rating suits cable size and load demand
- Verify Zs values and protective coordination under BS 7671
- Tighten terminals to manufacturer torque spec and record test results
