4 Pole Main Switch in 4 way Metal Enclosure
18th Ed. Compliant
2-Year Warranty
UK Stock
Free Delivery £30+
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This pre-wired 4 Pole Main Switch is housed in a compact 4-way metal enclosure, ideal for switching and isolating both single-phase and three-phase circuits. Rated at 100A, it provides safe, reliable isolation for distribution boards and sub-main supplies in commercial or residential settings. Includes: 1 × 100A 4 Pole Main...
This pre-wired 4 Pole Main Switch is housed in a compact 4-way metal enclosure, ideal for switching and isolating both single-phase and three-phase circuits. Rated at 100A, it provides safe, reliable isolation for distribution boards and sub-main supplies in commercial or residential settings.
Includes:
- 1 × 100A 4 Pole Main Switch (Double Terminal)
- 1 × Metal 4-module enclosure with hinged lid – see more electrical enclosures
- Pre-drilled knockouts for flexible cable entry
- Supplied fully assembled
This unit is built to order. Please allow 3 working days for delivery.
SKU: WMCU44100
What is a 4 Pole Main Switch used for?
A 4 pole main switch isolates all live conductors – including neutral – making it suitable for three-phase boards or balanced single-phase installations where full isolation is required.
Can this switch be used outdoors?
No – this unit is IP40 rated and intended for indoor use. For outdoor applications, we recommend IP65 weatherproof enclosures that offer dust and rain protection.
Is the unit supplied fully assembled?
Yes – the 100A 4 pole main switch is pre-installed inside a consumer unit enclosure and delivered ready to mount for fast installation.
What other switchgear options are available?
Alongside this pre-built unit, we also supply rotary isolators and meter isolators for safe disconnection across a range of applications.
- Switch Type: 4 Pole Isolator
- Current Rating: 100A
- Voltage: 230V (2P) / 400V (4P)
- Enclosure Type: 4-Way Metal Consumer Unit
- IP Rating: IP40 – suitable for indoor use
- Material: Steel enclosure, powder-coated
- Dimensions: H 230mm × W 130mm × D 110mm (including lid)
- Applications: Single-phase or three-phase switching, sub-main isolation, garage boards
This 4 pole switch unit is designed for internal use and must be installed by a qualified electrician. Suitable for isolating sub-boards, garage supplies, or 3-phase loads.
- Ensure all connections are torque-checked before energising
- IP40 rating – install in a dry location
- Metal enclosure includes multiple knockout positions for adaptable installs
