EV Connection Unit with 100A Main Switch + Surge Protection + 20A/32A/40A MCB's Options
The WCED EV Connection Unit is a compact, wall-mountable 5-module board that combines surge protection, overload protection, and full isolation - all in one enclosure. Pre-wired and fitted with a 100A main switch, Type 2 SPD, and your choice of MCB (20A, 32A or 40A), this is a quick-fit solution...
The WCED EV Connection Unit is a compact, wall-mountable 5-module board that combines surge protection, overload protection, and full isolation - all in one enclosure. Pre-wired and fitted with a 100A main switch, Type 2 SPD, and your choice of MCB (20A, 32A or 40A), this is a quick-fit solution for EV charger installs that require regulation-compliant protection and disconnection.
Ideal for residential EV charge points (including tethered and untethered setups), this board offers full protection against overcurrent and transient overvoltage events, while meeting the isolation requirements under BS7671 Amendment 2.
Available Variants:
- WEVCU20BSP: 100A Main Switch + 20A MCB + SPD
- WEVCU32BSP: 100A Main Switch + 32A MCB + SPD
- WEVCU40BSP: 100A Main Switch + 40A MCB + SPD
Key Features:
- Includes 100A double pole isolator switch
- 20A / 32A / 40A MCB options for overload protection
- Built-in Type 2 SPD - protects against voltage spikes
- Pre-wired and housed in a 5-way mini metal consumer unit
- Surface-mountable with protective front door
- Fast install - ready to fit out of the box
Does this include surge protection?
Yes - each variant includes a built-in Type 2 SPD (Surge Protection Device) to protect the charger and connected circuit from transient overvoltages.
Is the isolator switch compliant with EV charger regulations?
Yes - the 100A double pole main switch provides full local isolation as required by BS7671:2018 Amendment 2 for EV charge point circuits.
Do I need to buy an additional SPD or RCBO?
No - this unit includes the required SPD and MCB for overload protection. If you require earth leakage protection, consider using an RCBO or ensure the EV charger has built-in 30mA RCD protection.
Can I choose which MCB is included?
Yes - select from 20A, 32A, or 40A when purchasing. Ensure the selected rating suits the EV charger’s supply requirements.
Is this suitable for domestic EV installs?
Yes - it’s ideal for wall-mounted, single-phase EV charge point installs in residential settings. Also used in light commercial applications.
- Enclosure: 5-way mini metal consumer unit
- Dimensions: 175mm (W) × 110mm (H) × 91mm (D)
- Main Switch: 100A double pole isolator
- MCB Options: 20A, 32A, or 40A (C Curve)
- Surge Protection: Type 2 SPD, live & neutral
- Voltage: 230V AC
- Frequency: 50Hz
- IP Rating: IP40 (indoor use)
- Mounting: Surface-mounted, DIN rail inside
- Earthing System: TT, TN-S
- SKU Options: WEVCU20BSP, WEVCU32BSP, WEVCU40BSP
This EV connection unit should be installed by a qualified electrician. It’s suitable for installs where isolation, surge protection, and overload protection are required at the EV supply point. No additional SPD or isolator is needed.
- Install near EV charge point using 3-core SWA or split tails
- Ensure SPD earth path is short and direct
- Torque all terminals to manufacturer specifications
- Check MCB rating suits charger load and breaker curve requirements
