Niglon EV40AXSPC-4WI IP65 EV Consumer Unit
4 Way EV Charger Distribution Board with C40A Type A RCBO and Type 2 SPD
The Niglon EV40AXSPC-4WI IP65 EV Consumer Unit is a weather-resistant, pre-populated distribution board designed for electric vehicle charging installations. Featuring a 40A C-curve Type A bi-directional RCBO, 30mA residual current protection and a 40kA Type 2 surge protection device, this compact 4-way enclosure provides essential electrical protection for suitable EV charging equipment.
Manufactured by Niglon, the EV40AXSPC-4WI combines a lightweight PC/ABS enclosure with a transparent front cover and pre-fitted internal busbar and cable connections. Its IP65 protection rating makes it suitable for appropriately installed outdoor EV charging applications, as well as garages and other suitable indoor locations.
The Niglon EV40AXSPC-4WI IP65 EV Consumer Unit is particularly useful for EV chargers incorporating their own compliant open PEN conductor protection, where the installation design does not require a separate external PEN fault detection device.
Key Features and Installer Benefits
The Niglon EV40AXSPC-4WI IP65 EV Consumer Unit combines circuit protection and surge protection in one convenient enclosure, reducing the amount of component selection and internal wiring required during installation.
- 4-way IP65 EV charger distribution board.
- Factory-fitted 40A C-curve bi-directional RCBO.
- Type A residual current protection rated at 30mA.
- Single-phase 1P+N RCBO configuration.
- 40kA Type 2 surge protection device included.
- Pre-fitted busbar and internal connecting cables.
- IP65-rated light grey PC/ABS enclosure.
- Transparent front cover for convenient visual inspection.
- Bi-directional protective device suitable for appropriately designed power-flow arrangements.
- Non-lockable enclosure design.
- No factory-formed cable entry knockouts.
- 240V AC rated supply.
- Intertek and Semko certifications.
- Designed for professional EV charging installations.
40A C-Curve Type A RCBO – Dedicated EV Circuit Protection
The Niglon EV40AXSPC-4WI IP65 EV Consumer Unit incorporates a factory-installed 40A, 30mA Type A RCBO with a C-curve tripping characteristic.
The RCBO combines residual current protection with overload and short-circuit protection, helping protect the dedicated EV charging circuit when correctly selected and installed.
Type A residual current protection is designed to detect alternating residual currents and pulsating DC residual currents. For EV charging applications, the charging equipment must also provide suitable DC residual current protection, or additional protection must be incorporated as required by BS 7671.
The C-curve characteristic can accommodate higher instantaneous inrush currents than a comparable B-curve device. Its suitability must be confirmed against the circuit’s prospective fault current, earth fault loop impedance and required disconnection times.
The installed RCBO is bi-directional, allowing it to be considered for installations where power may flow in either direction, subject to the specifications of the charger, electrical installation and protective equipment.
40kA Type 2 Surge Protection Included
The Niglon EV40AXSPC-4WI IP65 EV Consumer Unit includes a Type 2 surge protection device with a specified maximum discharge current of 40kA.
Surge protection helps limit transient overvoltages caused by electrical switching operations and indirect lightning-related disturbances. These events can affect electronic charging equipment and other sensitive components connected to the electrical installation.
With a Type 2 SPD already installed, electricians can avoid sourcing and mounting a separate surge protection device within the distribution board.
The pre-fitted surge protection arrangement also helps simplify internal wiring, although the installer must still verify supply characteristics, earthing arrangements and SPD coordination according to the manufacturer’s instructions.
IP65 Weather-Resistant Enclosure with Transparent Lid
The Niglon EV40AXSPC-4WI IP65 EV Consumer Unit features a durable PC/ABS enclosure with a light grey body and transparent front cover.
Its IP65 ingress protection rating provides protection against dust ingress and water jets, making the enclosure suitable for outdoor electrical installations when correctly mounted and sealed.
The transparent cover allows electricians and maintenance personnel to inspect the position of the internal protective devices without removing the enclosure cover.
Unlike traditional metal consumer units, the PC/ABS construction provides a lightweight enclosure that is practical for installation on suitable walls and mounting surfaces.
Key enclosure details include:
- Enclosure material: PC/ABS plastic.
- Body colour: Light grey.
- Front cover: Transparent.
- Ingress protection: IP65.
- Number of ways: 4.
- Lockable: No.
- Factory knockouts: None.
Suitable cable entry glands must be selected to preserve the required IP rating. Condensation management, exposure conditions and the manufacturer’s mounting instructions should also be considered for outdoor installations.
Pre-Wired EV Consumer Unit for Faster Installation
The Niglon EV40AXSPC-4WI IP65 EV Consumer Unit is supplied with the RCBO, SPD, busbar and internal connecting cables already fitted.
This reduces the amount of internal assembly required compared with selecting an empty enclosure and installing each protective device separately.
The pre-configured arrangement is particularly convenient for electricians carrying out repeated EV charger installations, where consistent equipment selection and efficient installation are important.
The installer remains responsible for confirming suitable supply protection, incoming and outgoing cable sizes, cable entry arrangements, earthing and protective device compatibility.
EV Chargers with Built-In PEN Fault Protection
The Niglon EV40AXSPC-4WI IP65 EV Consumer Unit can be used as part of an EV charging installation where the charge point incorporates suitable open PEN conductor protection and the overall installation meets the relevant requirements of BS 7671 Section 722.
Some modern EV chargers incorporate their own PEN fault detection or protective disconnection arrangements, potentially removing the need for an additional external PEN fault protection device.
However, this must be verified against the individual charger’s manufacturer instructions and the actual supply and earthing arrangement.
The EV40AXSPC-4WI itself should not be regarded as providing open PEN conductor protection unless that function is explicitly specified by the manufacturer.
Likewise, the included Type A RCBO does not automatically replace any required 6mA DC residual current detection or Type B RCD protection.
Suitable Applications
The Niglon EV40AXSPC-4WI IP65 EV Consumer Unit is intended for suitable dedicated EV charging installations requiring a 40A C-curve protective device and Type 2 surge protection.
Typical installations may include:
- Domestic wall-mounted EV charging points.
- Garages and residential parking areas.
- Outdoor EV charging installations.
- Suitable commercial EV charging applications.
- Replacement or upgraded EV charger distribution boards.
- Charging equipment with compatible integrated PEN fault protection.
- Suitable bi-directional charging installations, subject to equipment and system design.
For a typical single-phase 7kW-class EV charger, electricians should confirm the charger’s operating current and required protective device characteristics rather than selecting the circuit protection solely by charger power.
Final circuit design must consider cable installation method, current-carrying capacity, voltage drop, fault protection, earthing and the requirements of the charging equipment.
Technical Specifications – EV40AXSPC-4WI
- Manufacturer: Niglon
- Product code: EV40AXSPC-4WI
- Product type: EV charger distribution board
- Number of ways: 4
- Enclosure material: PC/ABS
- Colour: Light grey with transparent front cover
- Ingress protection: IP65
- Lockable: No
- Factory knockouts: None
- Rated voltage: 240V AC
- RCBO configuration: 1P+N
- RCBO current rating: 40A
- Tripping characteristic: C Curve
- Residual current type: Type A
- Residual operating current: 30mA
- Bi-directional RCBO: Yes
- Surge protection: Type 2 SPD
- SPD maximum discharge current: 40kA
- Internal connections: Pre-fitted busbar and cables
- Standards: EN 61643-11, EN 61009-1, EN 61439-3
- Certification: Intertek, Semko
- Open PEN protection: Not specified as an integrated feature
What’s Included?
- 1 × Niglon EV40AXSPC-4WI 4-way IP65 PC/ABS enclosure with transparent cover.
- 1 × Pre-installed 40A C-curve, 30mA Type A bi-directional RCBO.
- 1 × Pre-installed 40kA Type 2 surge protection device.
- Pre-fitted busbar and internal connecting cables.
External cable glands and any additional protection required by the charger or installation are not specified as included. Confirm requirements before installation.
Alternative Niglon IP65 Metal EV Consumer Unit
For installations where a metal enclosure is preferred, Electrical4Less also supplies the Niglon EV40AXSP-5WA 5-way EV distribution board.
The alternative model features an IP65-rated aluminium enclosure with pre-installed circuit protection and surge protection. It provides another option for electricians comparing enclosure construction, protective device characteristics and mounting arrangements.
View the Niglon EV40AXSP-5WA IP65 Metal EV Distribution Board.
Please check the exact RCBO curve and model specification when comparing alternative EV consumer units.
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