IP65 EV Consumer Unit – 40A C Curve RCBO + SPD
18th Ed. Compliant
2-Year Warranty
UK Stock
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The WMIP40CSP is a rugged IP65 EV consumer unit supplied with a 40A Type A RCBO (C Curve) and integrated Type 2 SPD. Built for EV charger installations that demand higher current handling and protection against inrush loads, it provides full overcurrent, residual current, and surge protection in one installer-ready...
The WMIP40CSP is a rugged IP65 EV consumer unit supplied with a 40A Type A RCBO (C Curve) and integrated Type 2 SPD. Built for EV charger installations that demand higher current handling and protection against inrush loads, it provides full overcurrent, residual current, and surge protection in one installer-ready unit.
Its steel IP65 enclosure is lockable, dustproof, and weatherproof — suitable for exposed outdoor environments such as driveways, garages, or commercial charging bays. The dual-handle RCBO speeds up diagnostics, separating MCB (black handle) from RCD (white handle) trips for quick fault identification.
Installer Tip: The 40A C Curve model is best suited for high-capacity EV chargers and equipment with substantial inrush current — providing headroom and resilience where lighter-duty boards may nuisance trip.
Key Features
- 40A Type A RCBO – C Curve, dual-handle trip indication
- Type 2 SPD integrated – green/red visual status
- IP65 steel housing – non-combustible, weatherproof, lockable
- EV-ready compliance – fully meets BS 7671:2018 A2
- Pre-assembled and labelled for fast installation
- Padlock-ready lid for extra site security
Compare IP65 EV Consumer Unit Variants
| Model | RCBO Rating | Curve | SPD |
|---|---|---|---|
| WMIP32BSP | 32A | B Curve | Type 2 SPD |
| WMIP40BSP | 40A | B Curve | Type 2 SPD |
| WMIP32CSP | 32A | C Curve | Type 2 SPD |
| WMIP40CSP (This Product) | 40A | C Curve | Type 2 SPD |
What type of installs need a 40A C Curve?
The 40A C Curve is suited to high-capacity EV charge points and equipment with higher inrush current, preventing nuisance tripping during startup.
Is this board weatherproof?
Yes – its IP65-rated steel enclosure is dust-tight, water-resistant, and lockable for outdoor use.
Does it meet EV regulation standards?
Yes – it complies with BS 7671:2018 Amendment 2, including requirements for Type A RCBOs and SPDs in EV circuits.
What’s different from the B Curve model?
The C Curve version is better for circuits with higher inrush currents. Use the 40A B Curve for standard load profiles.
- Model: WMIP40CSP
- Standards: BS EN 61439-3, BS EN 61009-1, BS EN 61643-11
- Modules: 5
- Rated Voltage: 230V AC
- RCBO Rating: 40A, C Curve
- Frequency: 50Hz
- Surge Protection: Type 2 SPD, with green/red indicator
- Terminal Type: Cage clamp
- Max Cable Entry: 35mm²
- Cable Entry: Multiple knockouts (M20–M32)
- Mounting: 35mm DIN rail
- IP Rating: IP65 – dust and water resistant
- Operating Temperature: -25°C to +40°C
Pre-wired and pre-assembled for quick fit on site. Designed for external mounting in residential or commercial EV charging setups. Dual-handle RCBO simplifies trip diagnosis for faster maintenance.
- Keep SPD earth lead short to optimise protection
- Mount securely using raised keyhole slots
- Use appropriate glands to maintain IP65 seal
- Padlock lid if tamper resistance is needed
