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Protect your indoor home electric vehicle charger installation effectively with the Whitecliffe WMRC40BSP protection unit. Housed in a sturdy 4-way metal enclosure, this unit provides specific protection including earth leakage, overload, and surge suppression, tailored for EV charging circuits installed indoors, such as in garages or utility areas.

Integrated B Curve RCBO and Surge Protection

This unit comes conveniently pre-fitted with essential safety components. The manufacturer's information indicates it includes a 40 Amp Type A B curve RCBO and a Type 2 Surge Protection Device (SPD). The RCBO offers combined functionality: 40A B curve overload protection (suitable for circuits with low inrush currents, typical of domestic setups) and Type A residual current protection (30mA AC and 6mA smooth DC sensitivity). The integrated SPD provides crucial protection against transient overvoltages for your sensitive EV charger.

Durable Indoor Metal Enclosure

The fully enclosed metal construction with a drop-down lid ensures durability for indoor applications (IP40 rated per WME4L enclosure details). It includes a DIN rail and earth terminal bar for straightforward installation. Convenient 25mm & 32mm knockouts facilitate EV cabling. The RCBO’s twin-handle system aids in quickly identifying the nature of a fault (overload vs earth leakage).

EV Charger Safety Compliance

Featuring a Type A high immunity RCBO, this unit is designed to handle the specific electrical characteristics of EV chargers, including potential DC leakage. Using such a dedicated protection unit ensures only the EV circuit trips during a fault, maintaining power to other essential circuits.

Why Evergy Recommend This Product

The Whitecliffe WMRC40BSP is a practical choice for indoor EV installations:

  • Combines 40A B curve overload and Type A RCD protection in one RCBO device.
  • Includes essential Type 2 Surge Protection.
  • Features a sturdy metal enclosure ideal for indoor use.
  • Twin-handle RCBO simplifies fault finding.
  • Consider the Type A C curve version (WMRC40CSP) for circuits with higher inrush, or the IP65 weatherproof version (WPRC40BSP) for outdoor needs.

Technical Specifications Overview

Based on the Whitecliffe Electrical product information:

  • Model: WMRC40BSP
  • Included Devices: 40A Type A B Curve RCBO (30mA AC / 6mA DC), Type 2 SPD
  • Enclosure: 4-way Metal (IP40)
  • Application: Indoor EV Charger Circuit Protection

Please refer to the manufacturer's datasheet for full technical specifications.

Dependable Protection for Your Indoor Charger

Choose the WMRC40BSP for reliable circuit protection for your indoor home EV charger. Ensure professional installation using appropriate EV cabling.

No data sheets or downloads available for this product.

Delivery options

  • Standard parcel delivery — tracked courier, typically 1–2 working days to UK mainland. Ideal for chargers, accessories and smaller solar components.
  • Pallet delivery — for bulkier items such as multi‑panel solar kits or commercial chargers. Typically 2–3 working days, kerbside as standard; 24/48‑hour services on request.
  • Collection — collect from our Oxfordshire distribution hub by appointment. Please contact us before travelling so we can confirm stock is ready.

Lead times

We dispatch Monday to Friday (excluding bank holidays). Stocked items ordered before our warehouse cut‑off are dispatched same day where services allow. Back‑order items are clearly flagged with estimated lead times. Exact services and pricing are confirmed at checkout.

Delivery area

UK mainland addresses only. We are unable to ship to Northern Ireland, Republic of Ireland, Isle of Wight, Isle of Man or the Channel Islands. Please report any damages or shortages within 48 hours of delivery.

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Open online pricing is available, but if you need account support, branch collection, project quantities or renewables supply help, start a trade conversation with LAMPS.

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