Niglon PCU0402M Protego 2 Way Consumer Unit
100A Double Pole Main Switch – Compact Metal Consumer Unit
The Niglon PCU0402M Protego 2 Way Consumer Unit is a compact metal consumer unit designed for professional electricians carrying out small electrical installations, dedicated circuit supplies and consumer unit replacements. Featuring a factory-fitted 100A double-pole main isolator, twin-screw terminals and two usable outgoing ways, this 4-module enclosure provides a practical solution where limited circuit distribution is required.
As one of the smallest models in the Protego range, the PCU0402M combines robust powder-coated steel construction with installer-focused features, including a built-in spirit level, raised DIN rail, accessible terminal arrangements and multiple cable entry knockouts.
The Niglon PCU0402M Protego 2 Way Consumer Unit is supplied without outgoing RCBOs or surge protection, giving electricians the flexibility to choose suitable protective devices for their installation. It is compatible with the Niglon NSA2-240 Type 2 SPD, available separately from Electrical4Less.
Key Features and Installer Benefits
The Niglon PCU0402M Protego 2 Way Consumer Unit offers the practical installation advantages of the larger Protego range within a compact 4-module enclosure.
- 4-module metal consumer unit with 2 usable outgoing ways.
- Factory-fitted 100A double-pole main isolator.
- Right-hand main switch incomer arrangement.
- Twin-screw main switch terminals with 35mm² conductor capacity.
- Compatible with Niglon NSA2-240 Type 2 surge protection.
- Direct-busbar SPD connection with no separate MCB required for the specified arrangement.
- Built-in spirit level for accurate positioning during installation.
- Raised DIN rail providing additional space for conductor routing.
- Multiple cable entry knockouts, including rear entry options.
- Accessible earth and neutral terminal arrangements.
- Robust curved steel cover with rounded edges.
- Powder-coated RAL 9010 white finish.
- IP20 ingress protection and IK05 impact resistance.
- Outgoing RCBOs, SPD and meter tails gland available separately.
Compact 2 Way Consumer Unit for Dedicated Circuits
The Niglon PCU0402M Protego 2 Way Consumer Unit is particularly useful where one or two outgoing circuits are required without the additional size of a larger distribution board.
Measuring 130mm wide, 240mm high and 110mm deep, the enclosure provides a compact solution for suitable indoor installations where available mounting space is restricted.
Typical applications include:
- Dedicated supplies for suitable fixed electrical equipment.
- Small garage and workshop electrical installations.
- Garden rooms and outbuildings with appropriate indoor mounting conditions.
- Individual heating equipment circuits.
- Small domestic distribution arrangements.
- Suitable EV charger supplies, subject to charger protection requirements.
- Replacement consumer units where two outgoing ways are sufficient.
Both available ways can accommodate compatible protective devices when the board is used without an SPD. If a single-module SPD is added, one outgoing way remains available.
The circuit arrangement, protective device ratings, upstream protection and suitability of the enclosure must be determined according to the installation design and applicable BS 7671 requirements.
Niglon Protego Range – Designed for Professional Electricians
The Niglon Protego range combines durable steel construction with practical design features intended to simplify installation, cable management and maintenance.
Despite its compact dimensions, the Niglon PCU0402M Protego 2 Way Consumer Unit incorporates the installer-friendly features associated with larger Protego consumer units.
A built-in spirit level helps electricians position the board accurately before mounting. The raised DIN rail provides additional room behind protective devices, assisting with conductor routing and termination.
Multiple round knockouts allow cables to enter the enclosure from different positions, while square rear knockouts are useful for installations involving cables entering from behind the mounting surface.
The robust curved steel lid, powder-coated white finish and rounded edges contribute to a neat appearance. Accessible earth and neutral terminal arrangements help maintain an organised internal installation.
These features are particularly useful when replacing existing consumer units where available conductor lengths, cable entry positions and wall space can influence the installation.
100A Double Pole Main Switch with Twin-Screw Terminals
The Niglon PCU0402M Protego 2 Way Consumer Unit incorporates a factory-fitted 100A double-pole main isolator positioned on the right-hand side of the enclosure.
The main switch provides a means of isolating the consumer unit assembly and features twin-screw terminals designed for secure termination of suitably sized incoming conductors.
The main switch terminal capacity is 35mm², with a rated operational voltage of 230V AC and rated frequency of 50Hz.
The 100A rating refers to the manufacturer’s rated current for the main isolator and consumer unit assembly. Actual circuit loading, conductor sizing and upstream protection must be assessed as part of the electrical installation design.
SPD Compatible – Add the Niglon NSA2-240 Type 2 Surge Protection Kit
The Niglon PCU0402M Protego 2 Way Consumer Unit can be upgraded with the compatible Niglon NSA2-240 Type 2 Surge Protection Kit, available separately from Electrical4Less.
The NSA2-240 is a compact single-module Type 2 SPD designed to help protect electrical installations and connected equipment against transient overvoltages associated with switching operations and indirect lightning-related events.
The Niglon NSA2-240 offers several useful features:
- Type 2 surge protection for suitable 230V AC installations.
- Maximum discharge current (Imax): 40kA (8/20µs).
- Nominal discharge current (In): 20kA (8/20µs).
- Maximum continuous operating voltage (Uc): 275V AC.
- Compact single-module design.
- Direct busbar connection in the compatible Protego arrangement.
- No separate MCB required for the specified connection arrangement.
- Pluggable surge protection module for replacement when required.
- Local status indicator for visual condition checking.
- Remote signalling capability.
- Supplied as a surge protection kit with connection cables.
- Designed to BS EN 61643-11.
Adding the NSA2-240 to the original PCU0402M occupies one of the two available outgoing ways, leaving one way for a compatible RCBO or other approved protective device.
Buy the Niglon NSA2-240 Type 2 Surge Protection Kit with Cables.
Please note: The standard PCU0402M consumer unit does not include the NSA2-240 SPD. Surge protection must be purchased separately unless you select our Electrical4Less SPD combination below.
Prefer a Complete Package? Choose Our 1 Way SPD Consumer Unit
For electricians who need the consumer unit and surge protection together, Electrical4Less offers an exclusive combination based on the original Niglon PCU0402M.
Our Niglon Protego 1 Way Main Switch SPD Consumer Unit (PCU0402M/SPD) combines the standard PCU0402M board with a compatible Niglon single-module Type 2 SPD and a meter tails gland.
The standard PCU0402M provides two free ways. Once the included Type 2 SPD is installed, one outgoing way remains available for a compatible protective device.
This Electrical4Less-created combination is not a separate factory-manufactured Niglon model. We package genuine Niglon components together to provide a convenient alternative for electricians requiring surge protection.
The combined package includes:
- Niglon PCU0402M 2-way metal consumer unit.
- Factory-fitted 100A double-pole main isolator.
- Compatible Niglon single-module Type 2 SPD.
- Meter tails gland for incoming supply cable entry.
- One remaining usable outgoing way after SPD installation.
The outgoing RCBO is sold separately.
View the Electrical4Less PCU0402M/SPD Consumer Unit with Type 2 SPD Included.
Compatible Niglon 6kA Bi-Directional RCBOs
The Niglon PCU0402M Protego 2 Way Consumer Unit is supplied without outgoing RCBOs, allowing electricians to select individual protective devices appropriate for their installation.
RCBOs combine residual current and overcurrent protection within a single device. When correctly specified, they provide protection against residual current faults, overloads and short circuits.
Individual RCBO protection can help reduce disruption during a fault by disconnecting the affected circuit without necessarily interrupting other circuits.
Electrical4Less supplies Niglon 6kA bi-directional RCBOs in various current ratings and tripping characteristics for compatible Niglon consumer units.
Shop Niglon 6kA Bi-Directional RCBOs for Consumer Units.
Always confirm the selected protective device is compatible with the consumer unit and suitable for the circuit design, prospective fault current and equipment being supplied.
Technical Specifications – Niglon PCU0402M Protego 2 Way Consumer Unit
- Brand: Niglon
- Product range: Protego
- Manufacturer part number: PCU0402M
- Consumer unit type: Main switch metal consumer unit
- Configuration: Single row with right-hand incomer
- Total modules: 4
- Usable outgoing ways without SPD: 2
- Usable outgoing ways with single-module SPD: 1
- Main switch: 100A double-pole isolator
- Main switch terminals: Twin screw
- Main switch terminal capacity: 35mm²
- Rated current of assembly: 100A
- Rated operational voltage: 230V AC
- Rated frequency: 50Hz
- Compatible SPD: Niglon NSA2-240 Type 2
- SPD included: No
- Enclosure material: Powder-coated steel
- Enclosure finish: RAL 9010 white
- Ingress protection: IP20
- Impact resistance: IK05
- Dimensions: 130mm (W) × 240mm (H) × 110mm (D)
- Consumer unit standard: BS EN 61439-3
- Main isolator standard: EN 60947-3
- Manufacturer certification: SEMKO, CE, UKCA
What’s Included with the Standard PCU0402M?
- 1 × Niglon Protego PCU0402M 4-module, 2-way metal consumer unit.
- 1 × Factory-fitted 100A double-pole main isolator.
- Original manufacturer-supplied busbar arrangement.
- Internal earth and neutral terminal bars.
- Standard manufacturer-supplied fixing accessories and identification labels.
The standard Niglon PCU0402M Protego 2 Way Consumer Unit does not include outgoing RCBOs, the NSA2-240 SPD or the additional meter tails gland supplied with our Electrical4Less SPD combination.
Niglon Consumer Unit Accessories
Electrical4Less stocks additional installation accessories for Niglon Protego consumer units, including module blanks, lid magnets and selected mounting accessories for compatible enclosures.
These accessories can assist with achieving a tidy installation, closing unused module openings and completing the consumer unit assembly.
Browse our Niglon Consumer Unit Accessories category to find suitable components.
Always check compatibility with the PCU0402M before ordering.
Explore the Niglon Protego Consumer Unit Range
The Niglon PCU0402M Protego 2 Way Consumer Unit is one of the smallest enclosures in the Protego range, making it useful where only one or two outgoing circuits are required.
For installations requiring more circuit capacity, Niglon offers larger Protego consumer units in various configurations.
Browse our Niglon Protego Consumer Units to compare alternative enclosure sizes and main switch arrangements.
For further circuit protection equipment, surge protection products and installation accessories, explore our Niglon Electrical Products Range.
Manufacturer Technical Datasheet
For dimensions, rated current and original manufacturer specifications, view the Niglon PCU0402M Technical Datasheet.
Why Choose Electrical4Less?
Electrical4Less is an independent UK electrical wholesaler supplying professional electricians, contractors and installers with consumer units, RCBOs, surge protection devices and electrical installation materials.
We offer the Niglon PCU0402M Protego 2 Way Consumer Unit as a standard main switch board, alongside the compatible NSA2-240 Type 2 SPD kit and our exclusive PCU0402M/SPD consumer unit combination.
This gives electricians the flexibility to select the standard consumer unit, add surge protection separately or purchase a convenient combined package including the SPD and meter tails gland.
Order the Niglon PCU0402M Protego 2 Way Consumer Unit from Electrical4Less and select your preferred compatible protective devices and installation accessories to complete the installation.
