80A 2 Pole 10kA MCB – B Curve (WKC280B)
18th Ed. Compliant
2-Year Warranty
UK Stock
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The WKC280B is an 80A 2 Pole 10kA Miniature Circuit Breaker (MCB) designed to provide dependable overload and short-circuit protection for high-load single-phase circuits, sub-mains and distribution applications. With a B-curve tripping characteristic, it is suited to circuits with low inrush current, including resistive loads, distribution feeds and fixed electrical...
The WKC280B is an 80A 2 Pole 10kA Miniature Circuit Breaker (MCB) designed to provide dependable overload and short-circuit protection for high-load single-phase circuits, sub-mains and distribution applications. With a B-curve tripping characteristic, it is suited to circuits with low inrush current, including resistive loads, distribution feeds and fixed electrical equipment.
The 2-pole design disconnects both conductors simultaneously for safe isolation and maintenance, while the 10kA breaking capacity makes it suitable for installations where higher fault levels may be present. Its compact DIN-rail format allows straightforward integration into consumer units, three-phase distribution boards and electrical enclosures.
Installer note: B-curve MCBs are commonly used where circuits have lower startup current demand and fast disconnection characteristics are preferred.
- 80A rated current – suitable for high-load single-phase circuits and sub-main protection
- 10kA breaking capacity – designed for installations with higher prospective fault current levels
- 2-pole isolation – disconnects both conductors simultaneously
- B-curve tripping characteristic – intended for resistive and low-inrush applications
- DIN-rail mounted – compatible with standard 35mm DIN rails
- Compact 2-module format – efficient use of board space
- IEC/EN 60898-1 compliant – suitable for modern commercial and domestic distribution systems
Related High Breaking Capacity MCBs
| Product | Poles | Best For |
|---|---|---|
| WKC280B | 2 Pole | High-load single-phase circuits and sub-mains |
| WKC4100C | 4 Pole | Three-phase commercial distribution systems |
| WKC163B | 1 Pole | High-current final circuits and distribution protection |
The WKC280B provides a practical solution for installers needing a high breaking capacity 2-pole MCB with dependable protection characteristics for larger single-phase distribution circuits.
What is an 80A 2 pole MCB used for?
An 80A 2 pole MCB is commonly used for high-load single-phase circuits, sub-mains and distribution applications where both conductors need simultaneous isolation.
What does B-curve mean on an MCB?
B-curve MCBs are designed to trip more quickly at lower inrush current levels, making them suitable for resistive or low-startup-current circuits.
What does 10kA breaking capacity mean?
A 10kA breaking capacity means the MCB is designed to safely interrupt fault currents up to 10,000 amps under specified conditions.
Is this MCB DIN-rail mounted?
Yes. The WKC280B is designed for installation onto standard 35mm DIN rails used in consumer units and distribution boards.
Can this breaker be used in commercial installations?
Yes. This MCB can be used in suitable commercial and industrial distribution systems where the specification, load characteristics and fault levels are appropriate.
Does this MCB comply with UK standards?
Yes. The WKC280B is manufactured in accordance with IEC/EN 60898-1 for low-voltage circuit protection devices.
- Model: WKC280B
- Product Type: Miniature Circuit Breaker (MCB)
- Poles: 2 Pole
- Rated Current: 80A
- Curve Type: B Curve
- Breaking Capacity: 10kA
- Operating Voltage: 230/400V AC
- Mounting: 35mm DIN Rail (EN 60715)
- Dimensions (W × H × D): 35.6 × 82.4 × 78.5mm
- Standard: IEC/EN 60898-1
- Applications: Sub-mains, distribution circuits, lighting systems and fixed electrical loads
This 80A 2 pole MCB must be installed by a qualified electrician in accordance with current BS 7671 wiring regulations and manufacturer guidance.
- Mount onto a standard 35mm DIN rail (EN 60715)
- Ensure conductor sizing is suitable for an 80A protective device
- Verify prospective fault current does not exceed the device breaking capacity
- Check terminal tightness before energising the installation
- Clearly identify protected circuits within the distribution board schedule
Specification note: The network earthing arrangement and short-circuit current at the installation point should always be verified to ensure suitability with the device breaking capacity.
