WKC 3 Pole 10kA MCB – 10A C Curve (WKC310C)
18th Ed. Compliant
2-Year Warranty
UK Stock
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The WKC310C 3 Pole 10kA MCB is a 10A C Curve breaker designed to protect three-phase circuits from short-circuit and overload faults. Rated at 10kA breaking capacity and BS 7671 (18th Edition) compliant, it’s widely used in industrial boards, EV chargers, and solar PV installs. Its C Curve tripping profile...
The WKC310C 3 Pole 10kA MCB is a 10A C Curve breaker designed to protect three-phase circuits from short-circuit and overload faults. Rated at 10kA breaking capacity and BS 7671 (18th Edition) compliant, it’s widely used in industrial boards, EV chargers, and solar PV installs. Its C Curve tripping profile allows safe operation on circuits with higher inrush currents such as motors and HVAC systems.
Installer Tip: Choose C Curve breakers for inductive circuits with inrush (motors, HVAC, EV chargers). For resistive loads, see the B Curve. For heavy inrush, check the D Curve.
Key Features
- 10A rated current – protects small three-phase inductive circuits
- C Curve tripping – operates at 5–10x In
- 10kA breaking capacity – ensures safe disconnection under fault
- 3 Pole design: covers three-phase systems
- Bi-directional: wiring possible from top or bottom
- Applications: motors, HVAC, EV chargers, PV boards
Compare 10A 3 Pole Variants
| Model | Curve | Rated Current | Breaking Capacity |
|---|---|---|---|
| WKC310B | B Curve | 10A | 10kA |
| WKC310C (This Product) | C Curve | 10A | 10kA |
| WKC310D | D Curve | 10A | 10kA |
Where is the WKC310C typically used?
In three-phase setups requiring protection for inductive loads like motors, HVAC systems, or EV chargers.
How does C Curve differ from B and D?
C Curve trips at 5–10x rated current, ideal for inrush loads. B Curve trips faster (3–5x In), while D Curve is slower (10–20x In) for heavy machinery.
Why choose a 10kA breaker?
It ensures safe disconnection even under high fault currents in industrial/commercial boards.
Is this MCB bi-directional?
Yes — it can be wired from the top or bottom terminals.
Is it EV and PV compatible?
Yes — it’s suitable for EV protection and solar distribution.
- Product Code: WKC310C
- Type: Miniature Circuit Breaker (MCB)
- Poles: 3P (three-phase)
- Rated Current: 10A
- Curve: C Curve
- Breaking Capacity: 10kA
- Mounting: DIN rail, 18mm per module
- Functions: Overload & short-circuit protection, switching, isolation
- Compliance: BS 7671 (18th Edition)
- Endurance: 4000 mechanical / 2000 electrical operations
- Brand: WCED
Designed for DIN rail mounting in consumer units and distribution boards. Select curve type according to load:
- B Curve: fast response for resistive loads (lighting, sockets)
- C Curve: inductive circuits with moderate inrush (motors, HVAC, EV chargers)
- D Curve: high inrush equipment (transformers, welders)
Check the 10kA rating matches site fault levels. Install only by a qualified electrician in line with BS 7671.
