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The WMEV340B is a robust 3-way EV RCBO enclosure providing earth-leakage and overload protection for higher-rated single-phase EV chargers. Supplied with a 40A Type A High Immunity RCBO (Type B curve), it delivers 30 mA AC and 6 mA DC protection in line with BS 7671:2018 Amendment 2.
This model is ideal for 9.6 kW EV chargers or heavier single-phase loads where full 6 mA DC detection is required. Its compact, IP40-rated metal body keeps installs neat and compliant while supporting PME and surge-protected configurations.
Installer Tip: For 40 A EV circuits, verify cable sizing and voltage-drop calculations per BS 7671 Section 525 to maintain efficiency and safety.
- Supplied with 40 A Type A High Immunity RCBO (B curve)
- Detects AC, pulsating DC and 6 mA smooth DC leakage
- 3-module IP40 metal enclosure – compact and durable
- Provides overload and residual current protection in one device
- PME-ready and SPD-compatible for full EV compliance
- Built to order – typically dispatched within 3 working days
| Part Code | Description | RCBO Rating | Trip Curve |
|---|---|---|---|
| WMEV332B | 3 Way EV RCBO Enclosure – Type A High Immunity 32 A Type B | 32 A | B |
| WMEV332C | 3 Way EV RCBO Enclosure – Type A High Immunity 32 A Type C | 32 A | C |
| WMEV340B | 3 Way EV RCBO Enclosure – Type A High Immunity 40 A Type B | 40 A | B |
| WMEV340C | 3 Way EV RCBO Enclosure – Type A High Immunity 40 A Type C | 40 A | C |
The WMEV340B delivers dependable protection for high-demand single-phase EV circuits, combining Type A RCBO technology with a compact metal enclosure for fast, compliant installation under the 18th Edition requirements.
