Niglon Protego 31 Way Main Switch SPD Consumer Unit
PCU3632M/SPD – 125A Double Row Consumer Unit with Type 2 Surge Protection
The Niglon Protego 31 Way Main Switch SPD Consumer Unit is a large-capacity metal consumer unit designed for professional electricians working on larger domestic and suitable light commercial installations. Featuring a 125A double-pole main isolator, Type 2 surge protection and 31 usable outgoing ways, this double-row board provides a practical solution for installations requiring extensive circuit distribution.
Exclusive to Electrical4Less, the PCU3632M/SPD package combines the original Niglon Protego PCU3632M consumer unit with a compatible Niglon single-module Type 2 surge protection device and a meter tails gland. Both main components are genuine Niglon products, supplied together for convenience while allowing installers to select outgoing RCBOs separately.
Electrical4Less Exclusive – Why 31 Ways Instead of 32?
Niglon does not currently offer this particular Protego consumer unit as a standard factory-packaged SPD version. To provide electricians with an alternative, Electrical4Less has created the PCU3632M/SPD combination using the original 32-way Niglon consumer unit and a compatible Type 2 SPD.
The manufacturer’s PCU3632M datasheet specifies 36 total modules and 32 free ways. Our combination includes a single-module SPD which occupies one of those available ways, reducing the usable capacity from 32 to 31 outgoing ways.
The specified SPD connects directly to the busbar without requiring a separate MCB, preserving valuable space within the enclosure.
The Niglon Protego 31 Way Main Switch SPD Consumer Unit is therefore an Electrical4Less-created package rather than a separate factory-manufactured Niglon model. The original manufacturer’s datasheet shows the 32-way consumer unit before the SPD is added.
Niglon Protego Range – Designed for Professional Electricians
The Niglon Protego consumer unit range combines robust steel construction with practical features developed to make installation, cable management and ongoing maintenance more straightforward.
Unlike compact single-row consumer units, the PCU3632M provides a generous double-row arrangement, offering additional capacity for properties requiring numerous final circuits. Its internal design provides space for routing conductors, accessing protective devices and organising outgoing circuits.
Installation features across the Protego range include:
- Built-in spirit level to assist with accurate positioning during installation.
- Raised DIN rails providing additional room for routing and terminating cables.
- Multiple round cable entry knockouts for flexible installation.
- Square rear knockouts for cable entry from behind the enclosure.
- Robust curved steel cover with a 1.2mm lid construction.
- Accessible earth and neutral terminal arrangements.
- Large terminal screws designed to assist with secure conductor termination.
- Durable powder-coated steel housing with a clean white finish.
- Right-hand main switch incomer configuration.
These installer-focused features make the Protego range suitable for new electrical installations, consumer unit replacements and distribution board upgrades where additional circuit capacity is required.
31 Usable Ways for Larger Electrical Installations
The Niglon Protego 31 Way Main Switch SPD Consumer Unit offers substantial outgoing circuit capacity within a single enclosure. Its 36-module double-row configuration provides 31 usable ways after allowing for the included Type 2 SPD.
This makes the board particularly useful for larger residential properties with multiple lighting circuits, socket outlet circuits, kitchen appliances, electric showers, heating equipment and dedicated supplies for other fixed electrical loads.
The additional circuit capacity allows electricians to plan individual RCBO protection for a greater number of final circuits, subject to the installation design and manufacturer compatibility requirements.
For substantial property renovations, extensions or new installations, a large-capacity double-row consumer unit may provide a more convenient distribution arrangement than multiple smaller boards.
Type 2 Surge Protection Included
The PCU3632M/SPD package includes a compatible Niglon Type 2 surge protection device designed to help protect connected electrical equipment against transient overvoltages.
Transient overvoltages can result from electrical switching operations and indirect lightning-related events, potentially affecting sensitive electronic equipment such as computers, televisions, smart home systems and other connected devices.
The supplied single-module SPD is designed for direct busbar connection in the specified arrangement, meaning no separate MCB is required for the SPD. This helps maximise the available space for outgoing protective devices.
The inclusion of surge protection makes the Niglon Protego 31 Way Main Switch SPD Consumer Unit a convenient option for electricians planning installations with Type 2 SPD protection under the applicable requirements of BS 7671.
SPD installation, earthing arrangements and coordination with other protective devices must follow the manufacturer’s instructions and the installation design.
125A Double Pole Main Switch with Right-Hand Incomer
The original Niglon Protego PCU3632M consumer unit is fitted with a 125A double-pole main isolator, providing a means of isolating the consumer unit assembly.
The main switch is positioned on the right-hand side of the enclosure and has a rated terminal capacity of 50mm², as specified in the manufacturer’s technical information.
The 125A rating refers to the manufacturer’s rated assembly and main isolator. Electricians must select and install equipment according to the supply characteristics, upstream protection, conductor sizing and relevant installation requirements.
Meter Tails Gland Included
Every Electrical4Less PCU3632M/SPD combination also includes a meter tails gland, providing an additional component for incoming supply cable entry.
The gland can assist with achieving a neat and secure cable entry arrangement when correctly selected and installed, helping electricians complete the consumer unit installation with an appropriate cable entry accessory.
Including the gland within the package saves installers from having to order this item separately, subject to confirming its suitability for the selected cable and enclosure entry.
Compatible Niglon 6kA Bi-Directional RCBOs
The Niglon Protego 31 Way Main Switch SPD Consumer Unit is supplied without outgoing RCBOs, allowing electricians to select protective devices that match the requirements of individual circuits.
Individual RCBOs combine residual current and overcurrent protection in one device. This arrangement helps minimise disruption during a fault, as an affected final circuit can be disconnected without necessarily interrupting other circuits.
Electrical4Less supplies Niglon 6kA bi-directional RCBOs in a range of ratings, allowing installers to select appropriate protective devices according to the circuit design, prospective fault current and manufacturer compatibility requirements.
Browse our Niglon 6kA Bi-Directional RCBOs for Consumer Units to complete your consumer unit installation.
Please note that outgoing RCBOs are not included in the package and must be purchased separately.
Technical Specifications – Niglon Protego 31 Way Main Switch SPD Consumer Unit
- Brand: Niglon
- Product range: Protego
- Electrical4Less combination SKU: PCU3632M/SPD
- Original manufacturer model: PCU3632M
- Consumer unit type: Main switch, double-row metal consumer unit
- Incomer position: Right-hand side
- Total modules: 36
- Original free ways: 32
- Usable outgoing ways with included SPD: 31
- Main switch: 125A double-pole isolator
- Rated current of assembly: 125A
- Rated operational voltage: 230V AC
- Rated frequency: 50Hz
- Main switch terminal capacity: 50mm²
- Surge protection: Compatible single-module Type 2 SPD included
- SPD connection: Direct busbar connection in the specified arrangement
- Enclosure material: Powder-coated steel
- Ingress protection: IP20
- Impact protection: IK05
- Dimensions: 376mm (W) × 520mm (H) × 110mm (D)
- Consumer unit standard: BS EN 61439-3
- Main isolator standard: EN 60947-3
- Manufacturer certification: SEMKO, CE, UKCA
What’s Included in the PCU3632M/SPD Package?
- 1 × Niglon Protego PCU3632M 36-module, 32-way double-row metal consumer unit.
- 1 × 125A double-pole main isolator fitted to the consumer unit.
- 1 × Compatible Niglon single-module Type 2 SPD.
- 1 × Meter tails gland.
- Original manufacturer-supplied busbar arrangement, earth and neutral bars and standard fitting accessories.
The consumer unit is supplied without outgoing RCBOs. These must be selected and purchased separately to suit the installation.
Additional Niglon Consumer Unit Accessories
Electrical4Less also stocks a selection of accessories for the Niglon Protego consumer unit range, helping electricians complete installations with suitable components.
Our Niglon Consumer Unit Accessories category includes available module blanks, mounting accessories and other installation components. Confirm compatibility with the PCU3632M before ordering.
Explore More Niglon Protego Consumer Units
The Niglon Protego range offers a selection of consumer unit sizes and configurations suitable for different electrical installation requirements.
Whether you need a smaller consumer unit for a limited number of circuits or a large-capacity double-row board for a more extensive installation, explore our Niglon Protego Consumer Units for further options.
For additional circuit protection products, browse the complete Niglon Electrical Products Range available from Electrical4Less.
Why Choose Electrical4Less?
Electrical4Less is an independent UK electrical wholesaler supplying professional electricians, electrical contractors and installers with quality electrical equipment and circuit protection products.
We created the Niglon Protego 31 Way Main Switch SPD Consumer Unit combination to offer a convenient package containing the genuine Niglon consumer unit, a compatible Type 2 surge protection device and a meter tails gland.
With 31 usable ways, a 125A main isolator and practical Protego installation features, the PCU3632M/SPD is a suitable option for electricians requiring substantial circuit capacity with surge protection included.
Order online from Electrical4Less and select your compatible Niglon RCBOs separately to complete your required circuit protection arrangement.
