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The WKC306B 3 Pole 10kA MCB is a compact B Curve breaker rated at 6A, designed to protect three-phase circuits from overload and short-circuit faults. Built with a 10kA breaking capacity, it’s ideal for commercial and industrial distribution boards, EV chargers, and solar PV systems. Fully compliant with BS 7671 (18th Edition), it offers both switching and isolation functionality in one DIN-rail mounted device.
Installer Tip: Choose the B Curve version for resistive loads such as lighting and socket circuits. For inductive or high-inrush applications, see the C Curve or D Curve alternatives.
Key Features
- 6A rated current – protects small three-phase loads
- B Curve tripping – trips at 3–5x In, ideal for resistive circuits
- 10kA breaking capacity – handles high fault levels
- 3-pole design – protects three-phase circuits
- Bi-directional: connect from top or bottom
- Applications: lighting, socket circuits, small three-phase boards
Compare 6A 3 Pole Variants
| Model | Curve | Rated Current | Breaking Capacity |
|---|---|---|---|
| WKC306B (This Product) | B Curve | 6A | 10kA |
| WKC306C | C Curve | 6A | 10kA |
| WKC306D | D Curve | 6A | 10kA |
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