Type C MCBs (C Curve Circuit Breakers)
Type C MCBs (also known as C curve circuit breakers) are designed for circuits with moderate to high inrush currents. They provide reliable overcurrent and short-circuit protection while allowing equipment such as motors, compressors and HVAC systems to start without nuisance tripping.
Available in multiple current ratings and breaking capacities, our C curve MCBs are suitable for domestic, commercial and light industrial distribution boards.
Quick overview: A Type C MCB trips between 5–10 times its rated current, making it the correct choice for motor-driven or inductive loads where startup surge is higher than standard lighting circuits.
Read more about C curve characteristics
- Type C tripping curve (5–10 × In)
- Ideal for motor and compressor circuits
- 6kA and 10kA breaking capacities
- DIN-rail compatible single-module designs
- Compliant with BS EN 60898
Choosing the correct MCB curve type ensures stable operation during equipment startup while maintaining rapid fault clearance.
1 Pole 10kA MCB 50A C Curve WKC150C
£5.00
The WCED WKC Series 10kA Miniature Circuit Breakers (MCBs) are high-performance devices designed for precise overcurrent detection and short-circuit protection. Built to handle demanding applications, they provide reliable protection for domestic, commercial, and industrial distribution systems – including solar PV with SPD and EV charging...
1 Pole 10kA MCB 40A C Curve WKC140C
£5.00
The WCED WKC Series 10kA Miniature Circuit Breakers (MCBs) are high-performance devices designed for precise overcurrent detection and short-circuit protection. Built to handle demanding applications, they provide reliable protection for domestic, commercial, and industrial distribution systems – including solar PV with SPD and EV charging...
1 Pole 10kA MCB 32A C Curve WKC132C
£5.00
The WCED WKC Series 10kA Miniature Circuit Breakers (MCBs) are high-performance devices designed for precise overcurrent detection and short-circuit protection. Built to handle demanding applications, they provide reliable protection for domestic, commercial, and industrial distribution systems – including solar PV with SPD and EV charging...
1 Pole 10kA MCB 20A C Curve WKC120C
£5.00
The WCED WKC Series 10kA Miniature Circuit Breakers (MCBs) are high-performance devices designed for precise overcurrent detection and short-circuit protection. Built to handle demanding applications, they provide reliable protection for domestic, commercial, and industrial distribution systems – including solar PV with SPD and EV charging...
1 Pole 10kA MCB 10A C Curve WKC110C
£5.00
The WCED WKC Series 10kA Miniature Circuit Breakers (MCBs) are high-performance devices designed for precise overcurrent detection and short-circuit protection. Built to handle demanding applications, they provide reliable protection for domestic, commercial, and industrial distribution systems – including solar PV with SPD and EV charging...
What Is a Type C MCB?
A Type C MCB is a miniature circuit breaker that trips at 5–10 times its rated current. This higher tolerance allows circuits with moderate inrush currents to operate correctly while still protecting against overload and short-circuit faults.
Common Applications
- Motor-driven equipment
- Heat pumps and HVAC systems
- Compressors and pumps
- Workshop machinery and power tools
- Commercial distribution boards
B Curve vs Type C MCB
B Curve: Trips at 3–5 × rated current. Suitable for lighting and general domestic circuits.
Type C: Trips at 5–10 × rated current. Recommended for circuits with higher startup loads.
Available Ratings & Breaking Capacities
We supply Type C MCBs in multiple amp ratings, including 6kA and 10kA variants to match fault level requirements in domestic and commercial installations.
Compliance & Standards
All C curve circuit breakers meet BS EN 60898 requirements and are suitable for use in 18th Edition compliant installations.