EV Connection Unit – 100A Main Switch + Surge Protection + 20A MCB (WEVCU20BSP)

The WEVCU20BSP is a metal EV connection unit with a 100A main switch and a 20A MCB, plus a surge protection device (SPD). The main switch provides isolation and the MCB provides overload and short-circuit protection.

Before ordering, contact Power & Data UK quoting WEVCU20BSP to confirm the fitted MCB curve, SPD model and classification, enclosure dimensions and supplied wiring arrangement.

Choosing protection for the charger circuit

The MCB does not provide residual-current protection. Check the charger's built-in protection and the additional residual-current, DC-fault and any open-PEN protection needed for the complete installation.

The 100A main-switch rating is separate from the 20A MCB rating. It does not make this a 100A charger circuit or establish a charger power rating. Select the circuit protection to suit the load, cable and equipment instructions.

Product configuration

• Product code: WEVCU20BSP
• Main switch: 100A
• MCB: 20A MCB
• Enclosure: metal, for a suitable indoor installation
• Surge protection: SPD included; confirm exact classification and ratings

Compare the metal EV connection units

Select by the charger requirements and complete circuit design. The 20A and 40A surge variants require confirmation of their fitted MCB curve and exact SPD specifications.

Browse our EV protection kits and connection units for other device arrangements.

Images may show a representative unit from the range. Order by the product code and confirmed configuration.

For the fitted MCB curve, dimensions, enclosure IP rating, supplied wiring arrangement and complete assembly specifications, please contact Power & Data UK quoting WEVCU20BSP.

A qualified electrician should select, install and test the WEVCU20BSP using the exact supplied assembly instructions and EV charger requirements. Confirm the fitted device references and wiring arrangement before making connections.

• Check that the 20A MCB, its trip curve and breaking capacity suit the load and circuit design.
• Confirm the residual-current and DC-fault protection required for the charger supply, including any open-PEN protection needed for the earthing arrangement.
• Use a suitable dry indoor location and check the enclosure protection and cable-entry requirements.
• Follow the supplied connection diagram, conductor requirements and terminal-specific tightening torques.
• Check the exact SPD model, coordination, backup protection and connection instructions.
• Complete inspection, testing and labelling before putting the circuit into service.

Which MCB curve is fitted?

Please contact Power & Data UK quoting WEVCU20BSP to confirm the exact fitted MCB and trip curve before ordering.

Which SPD is supplied?

This configuration includes surge protection. Please contact Power & Data UK for the supplied SPD model, classification and electrical ratings if these determine your selection.

What are the enclosure dimensions?

Please contact Power & Data UK to confirm the dimensions and IP rating of the WEVCU20BSP assembly before planning the mounting position.

Does the 100A switch mean this is a 100A charger supply?

No. The main-switch and MCB ratings describe different components. This configuration has a 20A MCB; the permitted load depends on the complete circuit design.

Is it supplied pre-wired?

Please confirm the supplied wiring arrangement for WEVCU20BSP with Power & Data UK before planning the installation. Follow the exact assembly diagram and instructions.

Does this provide all the protection an EV charger needs?

The listed main switch and MCB provide switching and overcurrent protection. Check the charger's own residual-current and DC-fault protection and what the complete circuit requires, including any open-PEN or surge protection.

Can it be installed outdoors?

Use this metal version in a suitable dry indoor location. Confirm the enclosure IP rating and installation requirements before selecting equipment for outdoor or damp conditions.