8 Way IP65 Enclosure – 40A B Curve Type A RCBO + Surge Protection (WPRC40BSP/8)
18th Ed. Compliant
2-Year Warranty
UK Stock
Free Delivery £30+
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The WPRC40BSP/8 is an 8 way IP65 plastic enclosure fitted with a 40A B Curve Type A RCBO and integrated Type 2 Surge Protection Device (SPD). Designed for EV charge points, renewable installs, and outdoor distribution circuits, it provides overload, short-circuit, earth leakage, and surge protection in a weatherproof enclosure....
The WPRC40BSP/8 is an 8 way IP65 plastic enclosure fitted with a 40A B Curve Type A RCBO and integrated Type 2 Surge Protection Device (SPD). Designed for EV charge points, renewable installs, and outdoor distribution circuits, it provides overload, short-circuit, earth leakage, and surge protection in a weatherproof enclosure.
With a 40A rating and B curve tripping characteristic, this unit is suited to higher-load domestic installs, light commercial charge points, and heat pump or PV circuits where stronger load handling is required. The factory-fitted Type A RCBO includes 6mA DC detection, meeting 18th Edition Amendment 2 compliance requirements.
Installer Tip: Choose the 40A rating for larger EV supplies or renewable circuits where demand exceeds a standard 32A line. Always confirm tails and supply cabling are sized correctly for the higher current.
Key Features
- 40A B Curve Type A RCBO – earth leakage and overload protection with 6mA DC detection
- Factory-fitted Type 2 SPD – 20kA/40kA transient surge defence
- 8 way IP65-rated plastic enclosure – weatherproof and dust-tight with hinged cover
- Pre-assembled and UK stocked – saves install time on site
- 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 (This Product) | 40A | B | Type A RCBO + SPD |
| WPRC40CSP/8 | 40A | C | Type A RCBO + SPD |
When should I use a 40A RCBO instead of 32A?
Use the 40A option for larger EV supplies, light commercial installs, or renewable circuits where demand is higher. Always check cable sizing matches the circuit rating.
Does this unit include surge protection?
Yes, it includes a factory-fitted Type 2 SPD (20kA/40kA) for transient overvoltage protection. For three-phase installs, see our 3 Phase SPD range.
Is this enclosure outdoor-rated?
Yes, the IP65 rating ensures protection against dust and water ingress, making it suitable for outdoor distribution and EV charger installs.
Are other curve or rating options available?
Yes. This 40A B Curve unit sits alongside 32A B Curve, 32A C Curve, and 40A C Curve variants. Compare all in the table above.
- Enclosure: 8 way IP65 plastic with hinged cover
- Device: 40A Type A RCBO, B 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: Higher-load EV installs, renewable circuits, outdoor distribution
This enclosure is supplied pre-built with RCBO and SPD pre-fitted. Final connection, testing, and certification must be completed by a qualified electrician.
- Mount securely in an accessible, weather-protected location
- Use IP-rated glands to maintain enclosure integrity
- Confirm selected rating (40A B Curve) suits the circuit design
- Keep SPD earth leads as short as possible for optimal performance
