Niglon Protego 3 Way Main Switch SPD Consumer Unit
PCU0604M/SPD – Compact 100A Consumer Unit with Type 2 Surge Protection
The Niglon Protego 3 Way Main Switch SPD Consumer Unit is a compact metal consumer unit combination created by Electrical4Less for electricians requiring three outgoing circuits with Type 2 surge protection. Built around the original Niglon Protego PCU0604M, this 6-module enclosure includes a 100A double-pole main isolator, direct-busbar surge protection and practical features for domestic and suitable small distribution installations.
Electrical4Less combines the standard Niglon 4-way consumer unit with a compatible single-module Niglon Type 2 SPD and a meter tails gland. This provides a convenient package for electricians who want surge protection included while selecting their outgoing RCBOs separately.
Electrical4Less Exclusive – Why 3 Ways Instead of 4?
The Niglon Protego 3 Way Main Switch SPD Consumer Unit is an Electrical4Less-created combination rather than a separate factory-manufactured Niglon SPD consumer unit.
The original PCU0604M provides 4 free ways within its 6-module metal enclosure. Because this particular Protego model is not supplied as a standard factory-packaged SPD version, Electrical4Less combines the original consumer unit with a compatible Niglon Type 2 surge protection device.
The supplied SPD occupies one of the original four outgoing ways, leaving three usable ways for compatible circuit protection devices.
Importantly, the SPD connects directly to the consumer unit busbar without requiring a separate MCB. This means the original 4-way board retains 3 usable outgoing ways after the surge protection device is installed.
This explains why Niglon’s original PCU0604M datasheet specifies 4 free ways, while the Electrical4Less PCU0604M/SPD combination is advertised as a 3-way consumer unit.
Key Features and Installer Benefits
The Niglon Protego 3 Way Main Switch SPD Consumer Unit combines a space-saving enclosure with useful features intended to simplify installation and circuit protection arrangements.
- Electrical4Less combination of genuine Niglon Protego consumer unit and compatible Type 2 SPD.
- 6-module metal enclosure with 3 usable outgoing ways after SPD installation.
- 100A double-pole main switch with twin-screw terminal arrangement.
- Single-module Type 2 SPD with direct busbar connection.
- No additional MCB required for the specified SPD arrangement.
- Meter tails gland included for incoming supply cable entry.
- Outgoing RCBOs selected and purchased separately.
- Built-in spirit level to assist with accurate mounting.
- Raised DIN rail for improved access and conductor routing.
- Multiple cable entry knockouts, including rear entry options.
- Powder-coated white steel housing with curved edges.
- IP20 ingress protection and IK05 impact resistance.
Niglon Protego Range – Practical Features for Electricians
The Niglon Protego consumer unit range has been developed with professional electricians in mind, combining robust steel construction with practical design details that assist during installation, wiring and maintenance.
The Niglon Protego 3 Way Main Switch SPD Consumer Unit uses the compact PCU0604M enclosure measuring just 160mm wide, 240mm high and 110mm deep. This makes it an option where installation space is limited and only a small number of outgoing circuits is required.
The Protego range incorporates a built-in spirit level to assist with accurate positioning, while the raised DIN rail allows additional space for routing outgoing conductors behind the protective devices.
Multiple knockout positions provide flexibility when routing cables into the consumer unit. Rear entry knockouts can be particularly useful for replacements where existing circuit cables enter through the wall behind the board.
The powder-coated steel construction, curved cover design and accessible earth and neutral terminal arrangements help installers achieve a neat and organised final installation.
3 Usable Ways for Small Electrical Installations
The Niglon Protego 3 Way Main Switch SPD Consumer Unit offers three usable outgoing ways after the included Type 2 SPD is fitted.
Its compact design makes it suitable for electrical installations requiring a limited number of individually protected circuits, provided the circuit design and supply arrangements are appropriate.
Potential applications include:
- Small flats, studios and ancillary domestic installations.
- Garages and workshops requiring a limited number of circuits.
- Suitable outbuilding distribution arrangements.
- Small offices and light commercial premises.
- Dedicated distribution arrangements for selected fixed electrical loads.
- Consumer unit replacements where three outgoing ways are sufficient.
The compact arrangement provides a practical alternative to a larger enclosure where additional outgoing circuit capacity is unnecessary.
Final circuit protection, supply arrangements, isolation and the suitability of the consumer unit must be assessed by the installer in accordance with BS 7671 and the manufacturer’s instructions.
Type 2 Surge Protection with Direct Busbar Connection
The Niglon Protego 3 Way Main Switch SPD Consumer Unit includes a compatible Niglon Type 2 surge protection device designed to help protect connected electrical equipment against transient overvoltages.
Transient overvoltages may arise from switching operations or indirect lightning-related events and can affect sensitive electronic equipment connected to an electrical installation.
The included single-module SPD connects directly to the busbar without requiring a separate protective MCB in the specified configuration.
This arrangement is especially useful in smaller consumer units because it preserves as much space as possible for outgoing circuits. With the SPD fitted, the original four available ways are reduced to three.
The SPD must be installed according to the manufacturer’s instructions, including the appropriate earthing, connection arrangements and protective coordination.
100A Double Pole Main Switch with Twin-Screw Terminals
The original Niglon PCU0604M consumer unit is supplied with a 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 a twin-screw terminal arrangement intended for secure termination of suitably sized incoming supply conductors.
Niglon specifies a 35mm² main switch terminal capacity, a rated operational voltage of 230V AC and a rated frequency of 50Hz.
The 100A rating refers to the manufacturer’s main isolator and rated assembly capacity. It does not mean the installation necessarily requires or is supplied by a 100A protective device.
Meter Tails Gland Included
Electrical4Less includes a meter tails gland with the Niglon Protego 3 Way Main Switch SPD Consumer Unit, providing an additional accessory for incoming supply cable entry.
When correctly selected and fitted, the gland helps provide a neat and secure entry arrangement for the incoming conductors.
The meter tails gland is included alongside the original consumer unit and Type 2 SPD, making the package convenient for electricians sourcing components for a new or replacement consumer unit installation.
Compatibility with the chosen conductors and enclosure entry must be confirmed during installation.
Compatible Niglon 6kA Bi-Directional RCBOs
The Niglon Protego 3 Way Main Switch SPD Consumer Unit is supplied without outgoing RCBOs, allowing electricians to choose the required current ratings and characteristics for each circuit.
RCBOs combine residual current protection and overcurrent protection in one device. Installing separate RCBOs for individual circuits can help limit disruption during a fault by disconnecting the affected circuit rather than multiple circuits protected by a shared RCD.
Electrical4Less supplies Niglon 6kA bi-directional RCBOs in a selection of current ratings for compatible consumer unit installations.
Explore our Niglon 6kA Bi-Directional RCBOs for Consumer Units to select protective devices appropriate for your installation.
Outgoing RCBOs are not included and must be purchased separately.
Technical Specifications – Niglon Protego 3 Way Main Switch SPD Consumer Unit
- Brand: Niglon
- Product range: Protego
- Electrical4Less combination SKU: PCU0604M/SPD
- Original manufacturer model: PCU0604M
- Consumer unit type: Main switch metal consumer unit with added Type 2 SPD
- Configuration: Single row with right-hand incomer
- Total modules: 6
- Original free ways: 4
- Usable outgoing ways with included SPD: 3
- 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
- Surge protection: Compatible single-module Type 2 SPD included
- SPD connection: Direct to busbar
- Separate SPD MCB: Not required for the supplied arrangement
- Enclosure material: Powder-coated steel
- Enclosure finish: RAL 9010 white
- Ingress protection: IP20
- Impact resistance: IK05
- Dimensions: 160mm (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 in the PCU0604M/SPD Package?
- 1 × Niglon Protego PCU0604M 6-module, 4-way metal consumer unit.
- 1 × 100A double-pole main switch 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 terminal bars and standard fitting accessories.
The original consumer unit provides four outgoing ways. With the supplied single-module SPD installed, three ways remain available for outgoing protective devices.
Niglon Consumer Unit Accessories
Electrical4Less supplies a range of installation accessories for Niglon consumer units, including module blanks, lid magnets and mounting accessories for compatible Protego enclosures.
Browse our Niglon Consumer Unit Accessories to find additional components for completing your installation.
Always check accessory compatibility with the PCU0604M enclosure before ordering.
Explore the Niglon Protego Consumer Unit Range
The Niglon Protego 3 Way Main Switch SPD Consumer Unit is the compact Electrical4Less combination for installations requiring three outgoing ways together with Type 2 surge protection.
For installations needing more outgoing circuits, larger Protego consumer units are also available, including our 7-way, 11-way, 15-way and other SPD combinations.
Explore our Niglon Protego Consumer Units selection to compare the available enclosure sizes and configurations.
You can also browse the wider Niglon Electrical Products Range for RCBOs, surge protection devices and associated installation accessories.
Manufacturer Technical Datasheet
For original enclosure dimensions, electrical ratings and manufacturer specifications, view the Niglon PCU0604M Technical Datasheet.
The manufacturer’s datasheet describes the original four-way PCU0604M consumer unit before the single-module Type 2 SPD is added to the Electrical4Less combination.
Why Choose Electrical4Less?
Electrical4Less is an independent UK electrical wholesaler supplying professional electricians, contractors and installers with consumer units, circuit protection devices and electrical installation accessories.
We created the Niglon Protego 3 Way Main Switch SPD Consumer Unit combination to provide a compact package containing genuine Niglon circuit protection equipment together with a meter tails gland.
With three usable outgoing ways, a 100A double-pole main isolator and Type 2 surge protection, the PCU0604M/SPD provides a convenient solution for suitable small electrical distribution installations.
Order the Niglon Protego 3 Way Main Switch SPD Consumer Unit from Electrical4Less and select compatible Niglon RCBOs separately to complete your installation.
