4 Pole RCBO – 6A C Curve, Type A, 30mA (WCED WFR406C-030)
18th Ed. Compliant
2-Year Warranty
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The WCED WFR406C-030 is a 6A, C Curve, 4 Pole Type A RCBO that combines overcurrent and earth leakage protection in one device. Featuring a switched neutral, it fully isolates all conductors for safer maintenance, testing, and compliance with BS 7671 (18th Edition). With its C Curve tripping profile, the...
The WCED WFR406C-030 is a 6A, C Curve, 4 Pole Type A RCBO that combines overcurrent and earth leakage protection in one device. Featuring a switched neutral, it fully isolates all conductors for safer maintenance, testing, and compliance with BS 7671 (18th Edition).
With its C Curve tripping profile, the WFR406C-030 is designed for circuits with higher inrush currents, such as small motors, pumps, LED drivers, and certain EV charger setups. Its compact, high-immunity design makes it suitable for both commercial and specialist residential boards where reliability is essential.
Installer Tip: For low-load domestic circuits like lighting or sockets, consider the 6A B Curve version instead, as it trips faster on resistive loads.
Key Features
- 6A, C Curve: Designed for small circuits with higher inrush loads
- 4 Pole Isolation: Disconnects all conductors including neutral
- Type A RCD: Detects AC and pulsating DC leakage currents
- Switched Neutral: Simplifies insulation resistance testing
- High Immunity: Stable operation with electronic and inverter loads
- Bidirectional: Supports renewable and EV systems
- Compact: Single DIN module width (17.8mm)
- Standards: BS EN 61009-1, 18th Edition Wiring Regulations
Other Variants in the WFR4 Series
| Model | Rating | Curve | Link |
|---|---|---|---|
| WFR406B-030 | 6A | B | View Product |
| WFR406C-030 (This Product) | 6A | C | – |
| WFR410B-030 | 10A | B | View Product |
| WFR410C-030 | 10A | C | View Product |
| WFR416B-030 | 16A | B | View Product |
| WFR416C-030 | 16A | C | View Product |
| WFR420B-030 | 20A | B | View Product |
| WFR420C-030 | 20A | C | View Product |
| WFR432B-030 | 32A | B | View Product |
| WFR432C-030 | 32A | C | View Product |
| WFR440B-030 | 40A | B | View Product |
| WFR440C-030 | 40A | C | View Product |
What’s the difference between B and C Curve?
B Curve trips faster, making it better for resistive loads like lighting and sockets. C Curve allows higher inrush before tripping, ideal for motors, pumps, and EV/renewable systems.
Is this device compliant with UK regs?
Yes – fully compliant with BS EN 61009-1 and the 18th Edition Wiring Regulations.
Does it isolate the neutral?
Yes – it’s a 4 pole RCBO with switched neutral for complete disconnection.
What applications is this model best suited for?
Best for low-load but high-inrush circuits like small pumps, LED lighting banks, or EV charging setups where C Curve response is required.
Can I use this in commercial installs?
Yes – its high immunity and bidirectional design make it suitable for commercial, renewable, and specialist residential installs.
- SKU: WFR406C-030
- Device Type: 4 Pole Type A RCBO
- Current Rating: 6A
- Curve: C
- Residual Current: 30mA, high immunity
- Poles: 4 (with switched neutral)
- Isolation: Disconnects live & neutral conductors
- Dimensions (HxWxD): 67.6 × 71.6 × 67.5mm
- Mounting: 35mm DIN rail
- Compliance: BS EN 61009-1, BS 7671:2018 (Amendment 2)
Install in line with BS 7671 (18th Edition). Ensure suitability of curve and rating for circuit characteristics.
- C Curve: For small circuits with higher inrush (motors, pumps, LED drivers, EV supply)
- Mounting: Fits 35mm DIN rail
- Testing: Switched neutral supports safe insulation resistance tests
- Applications: Residential, commercial, and renewable-ready circuits
