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The WKC340C 3 Pole 10kA MCB is a 40A C Curve breaker built for protecting three-phase circuits with moderate inrush currents. Rated at 10kA breaking capacity, it provides safe disconnection during overload and short-circuit faults. Compact, bi-directional, and DIN rail mounted, it’s a reliable choice for EV charging points, solar PV distribution, HVAC systems, and industrial boards.
Installer Tip: Select a C Curve breaker when dealing with inductive circuits that generate moderate inrush currents. For lighting or socket loads, see the B Curve. For heavy inrush machinery, use the D Curve.
Key Features
- 40A rated current – protects larger three-phase inductive loads
- C Curve tripping – trips at 5–10x In
- 10kA breaking capacity – withstands high fault currents
- 3 Pole protection – covers all three live phases
- Bi-directional: allows flexible wiring from top or bottom
- Applications: EV charge points, motors, HVAC, solar PV, industrial boards
Compare 40A 3 Pole Variants
| Model | Curve | Rated Current | Breaking Capacity |
|---|---|---|---|
| WKC340B | B Curve | 40A | 10kA |
| WKC340C (This Product) | C Curve | 40A | 10kA |
| WKC340D | D Curve | 40A | 10kA |
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