Niglon PCU2220M Protego 20 Way Consumer Unit
100A Main Switch – 22 Module Metal Consumer Unit with Right-Hand Incomer
The Niglon PCU2220M Protego 20 Way Consumer Unit is a high-capacity metal consumer unit designed for professional electricians carrying out domestic installations, substantial property rewires and suitable light commercial electrical projects. Featuring a factory-fitted 100A double-pole main isolator, twin-screw terminals and 20 usable outgoing ways, this 22-module enclosure provides generous circuit capacity in a single-row arrangement.
Part of the Niglon Protego range, the PCU2220M combines durable powder-coated steel construction with practical installation features, including a built-in spirit level, raised DIN rail, multiple cable entry knockouts and accessible earth and neutral terminal arrangements.
The Niglon PCU2220M Protego 20 Way Consumer Unit is supplied without outgoing RCBOs or surge protection, allowing electricians to select suitable protective devices for their installation. It is compatible with the Niglon NSA2-240 Type 2 SPD, which is available separately, or customers can choose our exclusive Electrical4Less 19-way SPD combination.
Key Features and Installer Benefits
The Niglon PCU2220M Protego 20 Way Consumer Unit offers substantial outgoing circuit capacity alongside features intended to make installation, mounting and cable management more straightforward.
- 22-module steel enclosure providing 20 usable outgoing ways.
- Factory-fitted 100A double-pole main isolator.
- Right-hand main switch incomer configuration.
- Twin-screw main switch terminals with 35mm² terminal capacity.
- Compatible with the Niglon NSA2-240 Type 2 surge protection device.
- Direct-busbar SPD connection without requiring a separate MCB in the specified arrangement.
- Raised DIN rail providing additional space for cable management.
- Built-in spirit level to assist with accurate wall mounting.
- Multiple round cable entry knockouts for installation flexibility.
- Square rear knockouts for cables entering behind the enclosure.
- Accessible earth and neutral terminal arrangements.
- Robust curved steel cover with rounded enclosure edges.
- Powder-coated RAL 9010 white finish.
- IP20 ingress protection and IK05 mechanical impact resistance.
- Supplied without outgoing RCBOs, MCBs or SPD.
Niglon Protego Range – Designed for Professional Electricians
The Niglon Protego consumer unit range combines durable metal construction with practical features intended to assist electricians during installation, conductor termination and ongoing maintenance.
The Niglon PCU2220M Protego 20 Way Consumer Unit features a spacious single-row layout measuring 448mm wide, 260mm high and 110mm deep. This provides capacity for numerous outgoing circuits while retaining the lower enclosure height of a single-row consumer unit.
Its raised DIN rail creates additional clearance for conductor routing behind the protective devices, helping electricians organise outgoing circuit wiring and maintain access to terminal connections.
The built-in spirit level assists with accurate positioning during installation, while multiple round cable entry knockouts offer flexibility when routing incoming supply conductors and final circuit cables.
Square rear knockouts are particularly useful during consumer unit replacements where existing conductors enter through the wall behind the enclosure.
Additional Protego features include a robust curved steel cover, rounded edges, practical earth and neutral terminal arrangements and large terminal screws designed for secure conductor termination.
These installer-focused details can help electricians achieve a tidy installation, particularly in properties where numerous outgoing circuits need to be accommodated within one enclosure.
20 Usable Ways for Larger Domestic Installations
The Niglon PCU2220M Protego 20 Way Consumer Unit provides 20 usable outgoing ways within its 22-module enclosure, making it suitable for installations requiring a larger number of individually protected final circuits.
This configuration provides flexibility for residential properties where separate circuits may be required for lighting, socket outlets, cooking equipment, heating systems and other fixed electrical loads.
Typical applications include:
- Larger domestic electrical installations and substantial rewires.
- New-build residential properties requiring multiple final circuits.
- Separate lighting circuits for different areas of a property.
- Multiple ring final and radial socket outlet circuits.
- Dedicated kitchen appliance and cooking equipment circuits.
- Electric showers and suitable heating equipment supplies.
- Utility room and laundry equipment circuits.
- Garage, workshop and outbuilding electrical supplies.
- Dedicated circuits for selected fixed electrical equipment.
- Suitable light commercial installations requiring multiple outgoing circuits.
The 20-way arrangement allows electricians to plan individual RCBO protection for different circuits, helping minimise disruption if a fault develops on an individual final circuit.
The Niglon PCU2220M Protego 20 Way Consumer Unit also provides flexibility for installations where additional circuit capacity may be desirable, subject to the final protective device arrangement and available space.
The number of circuits, protective device ratings and conductor sizes must be determined according to the installation design and relevant BS 7671 requirements.
100A Double Pole Main Switch with Twin-Screw Terminals
The Niglon PCU2220M Protego 20 Way Consumer Unit includes 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 intended for secure termination of suitably sized incoming supply conductors.
Niglon specifies a main switch terminal capacity of 35mm², a rated operational voltage of 230V AC and a rated frequency of 50Hz for this model.
The 100A rating refers to the manufacturer’s rated current for the main isolator and consumer unit assembly. The actual installation loading, upstream protection and conductor sizing must be assessed by the electrician.
SPD Ready – Add the Niglon NSA2-240 Type 2 Surge Protection Kit
The Niglon PCU2220M Protego 20 Way Consumer Unit is compatible with the Niglon NSA2-240 Type 2 Surge Protection Kit, available separately from Electrical4Less.
The NSA2-240 is designed to help protect connected electrical equipment against transient overvoltages associated with switching operations and indirect lightning-related events.
Its compact single-module design connects directly to the busbar in the compatible Protego arrangement without requiring an additional MCB.
Although a separate MCB is not required for the specified SPD connection, the device itself occupies one outgoing way. Adding the NSA2-240 to the original PCU2220M therefore reduces the available circuit capacity from 20 to 19 usable ways.
This distinction is important when planning an installation with surge protection and multiple outgoing circuits.
Electricians who prefer to purchase the original consumer unit and surge protection separately can order the compatible device directly.
Buy the Niglon NSA2-240 Type 2 Surge Protection Kit with Cables.
Please note that the standard PCU2220M does not include an SPD. Surge protection must be purchased separately unless you select our Electrical4Less SPD combination.
Upgrade to Our Niglon Protego 19 Way SPD Consumer Unit
For electricians who require Type 2 surge protection together with the consumer unit, Electrical4Less offers an exclusive combination based on the original Niglon PCU2220M.
Our Niglon Protego 19 Way Main Switch SPD Consumer Unit (PCU2220M/SPD) combines the original 20-way Protego consumer unit with a compatible Niglon single-module Type 2 SPD and a meter tails gland.
The standard PCU2220M provides 20 outgoing ways. With the included Type 2 SPD fitted directly to the busbar, one way is occupied, leaving 19 usable outgoing ways for compatible circuit protection devices.
This combination is created by Electrical4Less using genuine Niglon components. It is not a separate factory-manufactured Niglon SPD consumer unit model.
The Electrical4Less package includes:
- 1 × Niglon PCU2220M 22-module, 20-way metal consumer unit.
- 1 × Factory-fitted 100A double-pole main isolator.
- 1 × Compatible Niglon single-module Type 2 SPD.
- 1 × Meter tails gland for incoming supply cable entry.
- 19 usable outgoing ways after the SPD is fitted.
Outgoing RCBOs are not included in this combination and must be selected separately.
View the Electrical4Less PCU2220M/SPD 19 Way Consumer Unit with Type 2 SPD Included.
Alternative SPD Consumer Unit Kit with 15 Bi-Directional RCBOs
Electrical4Less also offers a more complete Protego consumer unit package for electricians who require surge protection and outgoing RCBOs together.
The Niglon PCU2220M SPD Consumer Unit Kit with 15 Bi-Directional RCBOs includes the original Protego consumer unit, a Type 2 SPD, 15 Type A bi-directional RCBOs, four blanking plates and a meter tails gland.
The included RCBOs are B-curve, 30mA Type A devices available in selected current ratings from 6A to 40A. Customers can specify their preferred combination of ratings when ordering.
This kit is an alternative for electricians who want the consumer unit, surge protection and a selection of outgoing protective devices supplied together.
Compatible Niglon 6kA Bi-Directional RCBOs
The Niglon PCU2220M Protego 20 Way Consumer Unit is supplied without outgoing RCBOs, allowing electricians to configure circuit protection according to the requirements of their installation.
RCBOs combine residual current protection with overload and short-circuit protection in a single device. Individual RCBOs can help reduce disruption by disconnecting an affected final circuit without unnecessarily interrupting other circuits.
This arrangement is particularly useful for larger domestic installations with multiple lighting, socket outlet and dedicated appliance circuits.
Electrical4Less supplies Niglon 6kA bi-directional RCBOs in a range of current ratings and tripping characteristics for compatible Protego consumer units.
Shop Niglon 6kA Bi-Directional RCBOs for Consumer Units.
Protective devices must be selected according to manufacturer compatibility, circuit design, prospective fault current, current-carrying capacity and required disconnection times.
Technical Specifications – Niglon PCU2220M
- Brand: Niglon
- Product range: Protego
- Manufacturer part number: PCU2220M
- Consumer unit type: Main switch metal consumer unit
- Configuration: Single row with right-hand incomer
- Total modules: 22
- Usable outgoing ways without SPD: 20
- Usable outgoing ways with single-module SPD: 19
- Main switch: 100A double-pole isolator
- Main switch terminal arrangement: 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: 448mm (W) × 260mm (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 PCU2220M?
- 1 × Niglon Protego PCU2220M 22-module, 20-way metal consumer unit.
- 1 × Factory-fitted 100A double-pole main isolator.
- Original manufacturer-supplied busbar arrangement and shield.
- Internal earth and neutral terminal bars.
- Standard manufacturer-supplied cover blanks, fixing accessories, labels and instructions.
The standard Niglon PCU2220M Protego 20 Way Consumer Unit does not include outgoing RCBOs, the NSA2-240 Type 2 SPD or the additional meter tails gland supplied with the Electrical4Less SPD combination.
Niglon Consumer Unit Accessories
Electrical4Less offers a selection of accessories for the Niglon Protego range, including module blanks, lid magnets and rear stand-off plates for compatible enclosures.
These accessories can assist electricians with completing consumer unit installations, covering unused module openings and accommodating appropriate cable entry arrangements.
Browse our Niglon Consumer Unit Accessories for available products.
Always check accessory compatibility with the PCU2220M before ordering.
Explore Other Niglon Protego Consumer Units
The Niglon PCU2220M Protego 20 Way Consumer Unit is a larger single-row option within the Protego family, offering substantial outgoing circuit capacity without using a dual-row arrangement.
For installations requiring fewer ways, Electrical4Less supplies smaller Protego consumer units. For greater circuit capacity, the range also includes dual-row models with 24 and 32 free ways.
Explore our Niglon Protego Consumer Units to compare available board sizes and configurations.
For further protective devices and electrical installation products, visit our Niglon Electrical Products Range.
Manufacturer Technical Datasheet
For the original manufacturer dimensions, electrical ratings and technical specifications, view the Niglon PCU2220M Technical Datasheet.
Why Choose Electrical4Less?
Electrical4Less is an independent UK electrical wholesaler supplying professional electricians, electrical contractors and installers with consumer units, protective devices and electrical installation materials.
We supply the Niglon PCU2220M Protego 20 Way Consumer Unit alongside compatible Niglon RCBOs, the NSA2-240 Type 2 SPD kit and our exclusive PCU2220M/SPD 19-way surge-protected combination.
For electricians seeking a more complete solution, we also offer a Protego SPD consumer unit kit supplied with 15 bi-directional RCBOs.
This gives customers the flexibility to purchase the standard 20-way board, add surge protection separately or select a combination containing additional circuit protection components.
Order the Niglon PCU2220M Protego 20 Way Consumer Unit from Electrical4Less and select the protective devices and accessories required for your installation.
