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The WMEV340C is a high-capacity 3-way EV RCBO enclosure designed to protect single-phase EV charger circuits that demand both earth leakage and overload protection. Supplied with a 40A Type A High Immunity RCBO (Type C curve), it offers 30mA AC and 6mA DC fault detection in compliance with BS 7671:2018 Amendment 2.
This Type C configuration is suited for EV chargers with higher inrush currents — such as those with internal transformers, switched-mode power supplies, or advanced inverter systems. The compact IP40-rated steel housing makes it ideal for professional installations requiring durability, safety, and flexibility in tight indoor spaces.
Installer Tip: For high inrush EV chargers, Type C curves reduce nuisance tripping. Always confirm charger startup current and ensure circuit design aligns with BS 7671 Regulation 433.1.
- Supplied with 40A Type A High Immunity RCBO (C Curve)
- Detects AC, pulsating DC, and 6mA smooth DC leakage
- 3-module IP40-rated metal enclosure
- Dual overload and residual current protection
- Compatible with PME fault detection and surge devices
- 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 32A Type B | 32A | B |
| WMEV332C | 3 Way EV RCBO Enclosure – Type A High Immunity 32A Type C | 32A | C |
| WMEV340B | 3 Way EV RCBO Enclosure – Type A High Immunity 40A Type B | 40A | B |
| WMEV340C | 3 Way EV RCBO Enclosure – Type A High Immunity 40A Type C | 40A | C |
The WMEV340C completes the WMEV series — combining 40A load handling, 6mA DC protection, and high immunity performance for modern EV charger systems. Compact, compliant, and built for the 18th Edition, it’s the go-to option for higher-demand single-phase EV circuits.
