8 Way IP65 Enclosure – 40A C Curve Type A RCBO + Surge Protection (WPRC40CSP/8)
18th Ed. Compliant
2-Year Warranty
UK Stock
Free Delivery £30+
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The WPRC40CSP/8 is an 8 way IP65 plastic enclosure fitted with a 40A C Curve Type A RCBO and integrated Type 2 Surge Protection Device (SPD). Designed for EV charge points, heat pump circuits, and renewable installs, it delivers overload, short-circuit, earth leakage, and surge protection in one weatherproof unit....
The WPRC40CSP/8 is an 8 way IP65 plastic enclosure fitted with a 40A C Curve Type A RCBO and integrated Type 2 Surge Protection Device (SPD). Designed for EV charge points, heat pump circuits, and renewable installs, it delivers overload, short-circuit, earth leakage, and surge protection in one weatherproof unit.
With a 40A rating and C curve tripping characteristic, this variant is ideal for light commercial EV chargers, multi-charger domestic installs, or PV/heat pump circuits where high inrush currents are expected. The Type A RCBO detects smooth DC leakage up to 6mA, ensuring full 18th Edition Amendment 2 compliance.
Installer Tip: The 40A C Curve is the go-to choice for high-demand installs such as commercial EV charge bays or combined inverter-driven systems. Always check tails and breakers upstream are rated accordingly.
Key Features
- 40A C Curve Type A RCBO – designed for circuits with high inrush currents
- Factory-fitted Type 2 SPD – 20kA/40kA surge defence
- 8 way IP65-rated plastic enclosure – weatherproof, dust-tight, hinged cover
- Pre-assembled and UK stocked – reduces installation time
- Complies with BS EN 61009 and BS EN 61439-3
Compare 8 Way RCBO + SPD Enclosure Variants
| Model | Rating | Curve | Protection |
|---|---|---|---|
| WPRC32BSP/8 | 32A | B | Type A RCBO + SPD |
| WPRC32CSP/8 | 32A | C | Type A RCBO + SPD |
| WPRC40BSP/8 | 40A | B | Type A RCBO + SPD |
| WPRC40CSP/8 (This Product) | 40A | C | Type A RCBO + SPD |
When should I use a 40A C Curve RCBO?
Choose the 40A C Curve option for high-demand circuits such as multi-charger EV installs, heat pump circuits, or inverter-driven systems that produce high inrush currents.
Is surge protection included?
Yes, this unit includes a factory-fitted Type 2 SPD rated at 20kA/40kA. For larger three-phase applications, view our 3 Phase SPD units.
Can this be installed outdoors?
Yes, the IP65 enclosure is weatherproof and dust-tight, making it suitable for outdoor distribution boards and EV charger installs.
What other options are available in this range?
This 40A C Curve unit sits alongside 32A B Curve, 32A C Curve, and 40A B Curve variants. All models are compared in the table above.
- Enclosure: 8 way IP65 plastic with hinged cover
- Device: 40A Type A RCBO, C Curve
- Earth Leakage: 30mA AC + 6mA DC
- Surge Protection: Type 2 SPD, 20kA/40kA
- Operating Voltage: 230V AC, 50Hz
- Compliance: BS EN 61009, BS EN 61439-3
- Applications: EV charge bays, heat pump circuits, renewable installs
This enclosure is supplied pre-built with RCBO and SPD fitted. Final testing and commissioning must be performed by a qualified electrician.
- Install in an accessible, weather-protected location
- Use IP-rated cable glands to preserve the IP65 rating
- Confirm circuit design supports 40A load and C curve characteristics
- Ensure SPD earth leads are kept short for effective surge protection
