13A Unswitched Fused Spur with Neon and Flex Outlet - Metal Clad

The Knightsbridge M6000NF is a 13A unswitched fused spur with a red neon indicator and a flex outlet aperture, housed in a powder-coated steel metal clad casing. The unit provides permanent circuit isolation for fixed appliances such as water heaters, extractor fans and garage equipment where an unswitched connection is required by building regulations or manufacturer specification.

Designed for utility rooms, garages, workshops and commercial plant rooms where impact resistance and visible circuit status matter, the metal clad construction protects the internal terminals and fuse carrier from knocks and vibration in working environments. The red neon indicator sits above the central fuse carrier, illuminating when the circuit is live to confirm power status without needing to test with a meter. The flex outlet at the base of the faceplate allows cable to exit vertically downwards, keeping the appliance connection tidy and reducing strain on the cable.

The powder-coated silver-grey finish provides corrosion resistance in damp or dusty environments, and the 81.2mm square footprint matches standard UK accessory sizing for replacement installations. The unit is supplied with a matching powder-coated back box at 44.4mm depth, eliminating the need to source a separate enclosure. Captive terminals inside the unit retain their fixings during wiring, reducing the risk of dropped screws in awkward installation positions.

Product Specification Sheet

What does unswitched mean and when is it required?

Unswitched means the fused spur has no on/off switch — the appliance is either connected or disconnected by the fuse carrier alone. This is required by some appliance manufacturers and building regulations for equipment that should not be accidentally switched off, such as burglar alarms, emergency lighting, freezers or central heating controls.

What is the neon indicator for?

The red neon illuminates when the circuit is live, confirming at a glance that power is reaching the fused spur without needing to test with a meter. This is useful in garages, plant rooms and utility spaces where visual confirmation of circuit status saves time during maintenance.

Does it come with a back box?

Yes. The unit is supplied with a matching powder-coated metal back box at 44.4mm depth, so no separate enclosure needs to be sourced.

What is the flex outlet used for?

The flex outlet at the base of the faceplate allows cable to exit vertically downwards to the appliance, keeping the connection tidy and reducing cable strain. It suits fixed appliances positioned directly below the fused spur such as wall-mounted water heaters or extractor fans.