4 Pole RCBO – 16A B Curve, Type A, 30mA (WCED WFR416B-030)
18th Ed. Compliant
2-Year Warranty
UK Stock
Free Delivery £30+
Secure Payments With
The WCED WFR416B-030 is a 16A, B Curve, 4 Pole Type A RCBO designed for dependable protection against overcurrent, earth leakage, and arc faults. With a switched neutral as standard, it isolates all conductors — ensuring maximum safety and compliance with BS 7671 (18th Edition). Rated at 16A, this RCBO...
The WCED WFR416B-030 is a 16A, B Curve, 4 Pole Type A RCBO designed for dependable protection against overcurrent, earth leakage, and arc faults. With a switched neutral as standard, it isolates all conductors — ensuring maximum safety and compliance with BS 7671 (18th Edition).
Rated at 16A, this RCBO is suited to small power or lighting circuits that require fast fault disconnection. Its B Curve tripping characteristic makes it ideal for domestic and commercial applications with low inrush currents, while its bidirectional, high immunity design makes it compatible with EV charging, heat pumps, and solar PV installs.
Installer Tip: Use this 16A B Curve RCBO for small domestic and light commercial loads with resistive characteristics. For circuits with higher inrush currents, such as motors or EV chargers, choose the C Curve variant instead.
Key Features
- 16A, B Curve: Designed for small power and lighting circuits
- 4 Pole Isolation: Disconnects all live and neutral conductors
- Type A RCD: Detects AC and pulsating DC residual currents
- Switched Neutral: Simplifies insulation resistance testing
- Bidirectional: Safe for renewable and inverter-driven systems
- High Immunity: Stable operation in EV, solar, and electronic load environments
- Space Saving: Compact single DIN module (17.8mm wide)
- Compliance: BS EN 61009-1, BS 7671:2018 (18th Edition)
Other Variants in the WFR4 Series
| Model | Rating | Curve | Link |
|---|---|---|---|
| WFR406B-030 | 6A | B Curve | View Product |
| WFR406C-030 | 6A | C Curve | View Product |
| WFR410B-030 | 10A | B Curve | View Product |
| WFR410C-030 | 10A | C Curve | View Product |
| WFR416B-030 (This Product) | 16A | B Curve | – |
| WFR416C-030 | 16A | C Curve | View Product |
| WFR420B-030 | 20A | B Curve | View Product |
| WFR420C-030 | 20A | C Curve | View Product |
| WFR432B-030 | 32A | B Curve | View Product |
| WFR432C-030 | 32A | C Curve | View Product |
| WFR440B-030 | 40A | B Curve | View Product |
| WFR440C-030 | 40A | C Curve | View Product |
What’s the WFR416B-030 best for?
It’s ideal for 16A lighting and socket circuits where fast disconnection is required and full four-pole isolation is needed.
What’s the difference between B and C Curve?
B Curve trips faster, making it best for domestic/resistive loads. C Curve tolerates higher inrush currents — ideal for motors, EV, and renewable systems.
Does this RCBO isolate neutral?
Yes – it includes a switched neutral, ensuring full isolation and safer testing.
Is it UK compliant?
Yes – tested to BS EN 61009-1 and fully compliant with the 18th Edition Wiring Regulations.
Can I use this in renewable/EV setups?
Yes – its bidirectional design and high immunity make it suitable for EV chargers, solar PV, and heat pump systems.
- SKU: WFR416B-030
- Device Type: 4 Pole Type A RCBO
- Current Rating: 16A
- Curve: B
- Residual Current: 30mA, high immunity
- Poles: 4 (with switched neutral)
- Isolation: Full disconnection of live & neutral conductors
- Dimensions (HxWxD): 67.6 × 71.6 × 67.5 mm
- Mounting: 35mm DIN rail
- Compliance: BS EN 61009-1, 18th Edition Wiring Regulations
This RCBO must be installed by a qualified electrician in accordance with BS 7671. Correct selection of rating and curve is essential to ensure proper circuit protection.
- B Curve: For resistive loads (lighting, small power circuits)
- Mounting: Fits standard 35mm DIN rail
- Testing: Switched neutral allows safe insulation resistance testing without disconnection
- Applications: Domestic and light commercial boards, EV-ready installs, solar/heat pump systems
