Domestic EV
installations
A dedicated connection point for one 7.4 kW single-phase EV charger, with PEN fault protection, a Type A RCBO and surge protection built into one enclosure.
The new SP-M1b3t-R-SPD and IP-M1b3t-R-SPD units.
Safe home EV charging made simple
The SP-M1b3t-R-SPD and IP-M1b3t-R-SPD provide a simple, dedicated connection point for a single-phase EV charger. Built-in IET 01 M1b3t PEN fault protection allows connection to a PME earthing facility without installing an earth electrode.
If a PEN fault is detected, the unit disconnects the line, neutral and protective conductor, and stays off until it has been investigated and manually reset. After a normal power cut it checks the supply for around 20 seconds and reconnects automatically.
Ideal for domestic driveways, cross-pavement charging and vehicle-to-everything (V2X) installations.
Why installers choose matt:e
M1b3t PEN fault protection
IET 01:2024 Category M1b3t protection for EV charge points connected to a PME earth.
No earth electrode required
No earth rods and no disruptive groundworks on the homeowner's property.
Reduced risk around buried services
With no electrode to drive, there's no need to dig near buried cables and pipes.
RCBO and SPD in one enclosure
A 30 mA Type A RCBO and Type 2 surge protection device are pre-installed alongside the PEN fault protection.
Simple wire-in, wire-out
A straightforward, repeatable connection for every domestic installation.
Dedicated 7.4 kW capacity
Sized for one single-phase EV charger on a dedicated 40 A circuit.
Choose your enclosure
Choose the enclosure to suit where the unit will be mounted. Both models share the same protection devices.
SP-M1b3t-R-SPD
Mild steel enclosure for clean, dry indoor locations such as garages and utility rooms.
- Enclosure
- Mild steel, IP41
- Dimensions (W × H × D)
- 302 × 235 × 124 mm
IP-M1b3t-R-SPD
Weatherproof enclosure for external walls, driveways and cross-pavement installations.
- Enclosure
- Thermoplastic, IP65, IK08
- Dimensions (L × W × H)
- 270 × 250 × 160 mm
Not sure which model is right for your installation? Contact our technical team →
Key technical data
230 V AC, 50 Hz, 1P + N + PE. Rated at 40 A for one 7.4 kW single-phase EV charge point.
PEN fault protection
- Category
- IET 01:2024 M1b3t
- Operating window
- 184 V to 262.2 V AC
- Protective conductor trip
- 21 mA
- On fault
- Line, neutral and PE disconnected
- Start-up checks
- Approx. 20 seconds
- Detected fault
- Manual reset only
- Power failure
- Automatic reset on stable return
Type A RCBO
- Standard
- BS EN 61009-1
- Rated current
- 40 A, Type C
- Residual current
- 30 mA, Type A
- Short-circuit capacity
- 6 kA Icn
Type 2 surge protection
- Classification
- Type 2 / Class II, 1+NPE
- Discharge current
- In 20 kA, Imax 40 kA
- Protection level
- L-PE 1.5 kV, N-PE 1.3 kV
- Status indication
- Green operational, red replace
Earlier SP-EVCP & IP-EVCP range
Spec sheets and installation manuals for existing SP-EVCP and IP-EVCP units, including terminal, MCB, RCBO and SPD variants, are still available.
Facilitates compliance
IET 01:2024 Category M1b3t PEN fault protection, facilitating compliance with BS 7671 Regulation 722.411.4.1 (iv). UKCA and CE marked.
Need help selecting the right unit?
Our team in Tamworth is on hand to help you specify and order the correct domestic unit for any installation.