EV Connection Unit – 3 Way Metal Enclosure + 100A Main Switch + 32A Type B MCB (WEVCU32B)
18th Ed. Compliant
2-Year Warranty
UK Stock
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The WEVCU32B is a compact 3-way IP40-rated metal EV connection unit designed for safe isolation and circuit protection of single-phase EV chargers. It includes a 100A double-pole main switch for local isolation and a 32A Type B MCB to provide overload and short-circuit protection in compliance with BS 7671:2018 Amendment...
The WEVCU32B is a compact 3-way IP40-rated metal EV connection unit designed for safe isolation and circuit protection of single-phase EV chargers. It includes a 100A double-pole main switch for local isolation and a 32A Type B MCB to provide overload and short-circuit protection in compliance with BS 7671:2018 Amendment 2.
This configuration is ideal for standard domestic EV chargers rated around 7.4kW, providing simple, regulation-ready protection without the need for separate isolators or additional enclosure space. Its steel body and compact footprint make it a popular choice for neat, internal installations near the charge point.
Installer Tip: When terminating the 32A circuit, ensure both line and neutral conductors are securely fastened in the MCB terminals. Loose terminations can lead to heat buildup and tripping during high current draw.
- 3-way IP40-rated steel enclosure
- Includes 100A double-pole isolator switch
- Fitted with 32A Type B MCB (single pole)
- Compact design for single-phase 7.4kW EV chargers
- Surface-mount installation – ideal for internal garages or meter cupboards
- Compatible with TN-S and TT earthing systems
- Meets 18th Edition wiring regulation requirements
| Part Code | Description | Included Components |
|---|---|---|
| WEVCU32B | EV Connection Unit – 100A Main Switch + 32A Type B MCB | Main Switch (100A DP) + 32A Type B MCB |
| WEVCU40B | EV Connection Unit – 100A Main Switch + 40A Type B MCB | Main Switch (100A DP) + 40A Type B MCB |
| WEVCU20BSP | EV Connection Unit – 100A Main Switch + Surge Protection + 20A MCB | Main Switch (100A DP) + Type 2 SPD + 20A MCB |
The WEVCU32B offers a straightforward and cost-effective solution for EV charger connection points that don’t require built-in surge protection. It delivers full local isolation and overload protection in a compact steel housing, ensuring BS 7671 compliance and a professional finish on every install.
Does the WEVCU32B include surge protection?
No. It’s designed as a basic connection unit with isolation and overcurrent protection only.
Can it be used outdoors?
No. The IP40 rating means it must be installed in a dry indoor location.
Is it suitable for 7kW EV chargers?
Yes. The 32A MCB makes it ideal for single-phase 7.2–7.4kW charge points.
Do I need an external isolator switch?
No. The integrated 100A main switch provides local isolation in line with BS 7671.
Is it pre-wired?
No. Unlike the SPD variants, this model is supplied un-wired to allow flexible connection layouts on site.
- Enclosure: 3-way IP40 steel body
- Dimensions (H × W × D): 110 × 175 × 91 mm
- Main Switch: 100A double-pole isolator
- MCB: 32A Type B, Single Pole
- Voltage: 230V AC
- Frequency: 50Hz
- IP Rating: IP40 (indoor use)
- Mounting: Surface-mounted
- Earthing System: TN-S, TT
- Compliance: BS EN 60898-1, BS EN 61439-3, BS 7671 (18th Edition)
This EV connection unit must be installed by a qualified electrician. It’s suitable for single-phase EV charge points where surge protection is not required within the same enclosure. Always confirm the MCB rating aligns with the charger’s load characteristics.
- Mount securely near the EV charge point
- Use appropriate cable glands and maintain the IP40 integrity
- Ensure torque settings are applied to all terminals
- Label clearly to identify as the EV supply point
- Use only in dry, ventilated indoor areas
