A-Type RCBO EV Kit – 2 Way 25 A B Curve (WMEV225B)
18th Ed. Compliant
2-Year Warranty
UK Stock
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The WMEV225B is a 2-way A-Type RCBO EV Kit fitted with a 25 A B-curve high-immunity Type A RCBO. It provides combined overload, short-circuit and earth-leakage protection (30 mA AC + 6 mA DC) to 18th Edition Amendment 2 standards – ready for modern EV installations demanding high-integrity circuit isolation....
The WMEV225B is a 2-way A-Type RCBO EV Kit fitted with a 25 A B-curve high-immunity Type A RCBO. It provides combined overload, short-circuit and earth-leakage protection (30 mA AC + 6 mA DC) to 18th Edition Amendment 2 standards – ready for modern EV installations demanding high-integrity circuit isolation.
This variant suits chargers drawing around 5–6 kW or light-commercial units with moderate supply diversity. It arrives pre-assembled in a robust 2-way steel enclosure for quick on-site installation and testing.
Installer Tip: 25 A B-curve models offer a sweet spot between domestic and commercial load profiles. They’re ideal for 5–6 kW EV chargers where inrush currents are low-to-moderate. For heavier units or transformer inputs, switch to a C-curve variant.
- 25 A B-curve Type A RCBO (30 mA AC + 6 mA DC detection)
- Dual-pole (1P + N) isolation for live and neutral conductors
- Compact 2-way steel enclosure with hinged cover
- High-immunity design minimises false tripping on EV loads
- Complies with BS EN 61009-1 and BS 7671 (A2)
| Part Code | Rating | Curve | Typical Use |
|---|---|---|---|
| WMEV220B | 20 A | B | Domestic EV chargers ≈ 4.6 kW |
| WMEV225B | 25 A | B | Heavier domestic or small commercial chargers |
| WMEV232B | 32 A | B | 7 kW chargers with dedicated feed |
Every kit combines Type A RCBO protection and dual-pole isolation in a durable enclosure. For full PEN fault and load-balancing compliance, pair with our PME Fault Detection Unit. Add a Single Module SPD for surge protection where required.
Is this kit compliant for EV chargers?
Yes – it includes a Type A RCBO with 30 mA AC + 6 mA DC detection as required by 18th Edition Amendment 2.
When should I use a 25 A B Curve variant?
Ideal for chargers drawing ≈ 5–6 kW or small commercial set-ups on dedicated feeds.
Does it isolate both live and neutral?
Yes – the 1P + N RCBO provides complete dual-pole isolation for safe maintenance.
Can I add surge protection?
Yes – use our Single Module SPD or an upstream surge unit if specified.
Is this RCBO suitable for PV as well as EV?
Yes – Type A RCBOs are bi-directional and safe for both EV and solar PV circuits.
- Part Code: WMEV225B
- Enclosure: 2-way steel with hinged lid
- Device: Type A RCBO (high immunity)
- Rated Current (In): 25 A
- Curve: B
- Earth Leakage: 30 mA AC + 6 mA DC
- Breaking Capacity: 6 kA
- Poles: 1P + N (switched neutral)
- Standards: BS EN 61009-1; BS 7671:2018 (A2)
- Typical Use: Heavier domestic or light commercial EV charging circuits
The WMEV225B kit is pre-wired for speed on site. Installation must be carried out by a qualified electrician to BS 7671 standards.
- Install indoors or in a sheltered/IP-rated location
- Use 25 A B-curve for chargers drawing ≈ 5–6 kW
- Confirm Zs and disconnection times to BS 7671 (A2)
- Include upstream SPD if required by specification
