Fire Rated Switchgear & Switch Disconnectors for Essential Power Supply

Published 19 Oct 2020

Fire Rated Switchgear | F400

Safety First with Craig & Derricott

Fire Rated Switchgear

Switch Disconnectors for Essential Power Supply

The critical role of fire rated switchgear is to maintain the power to the vital equipment such as smoke extraction or ventilation fans to facilitate safe evacuation of buildings, car parks, or other public areas in the event of a fire.

These switch disconnectors form part of the isolators range are generally installed near the extraction fan for isolation of power supply and have been tested in conjunction with fan equipment to meet the stringent thermal requirements of fire safety and BS EN 12101-3.

F400 Fire Rated Switchgear Options

Craig & Derricott are delighted to launch the new design F400 Fire Rated Switchgear range which are available from 20A to 1250A and all fully tested and certified.

They have been designing electrical switchgear for 80 years and this expertise and an increasing demand from the ventilation industry has led to us to offer the most extensive range of F400 certified fire rated switchgear in the market.

The critical role of fire rated switchgear is to maintain the power to the vital equipment such as smoke extraction or ventilation fans to facilitate safe evacuation of buildings, car parks, or other public areas in the event of a fire. These switch-disconnectors are generally installed near the extraction fan for isolation of power supply.

The new F400 range is now available in ratings 20A to 1250A, in a variety of formats ranging from 2P to 8P. The units are supplied in two new enclosure designs:

IP65 Red Die-Cast Aluminium

Up to 5 pre-drilled and tapped cable entry holes for applications up to 6P+2EB
Supplied with lid captive but not fastened to save installation time
Guided screws fixings for wall or structure mounting
Paint finish and gasket is TFL compliant
External stainless steel fasteners
Fully rated and fire rated to F400 auxiliaries are factory fitted

IP65 Red Sheet Steel

Switch and back plate removal for ease of installation
External stainless steel wall fixings
Top and bottom cable glanding plates
Fully rated and fire rated to F400 auxiliaries are factory fitted up to 125A
Non-fire rated auxiliaries are available for 160A – 1250A on request
Stainless steel 316L enclosures are available on request

Fire Rated Isolators | F400 Fire Resistant Switch Disconnectors

Craig & Derricott new die-cast aluminium enclosures ranging 20A to 63A are fitted with a black powder coated die-cast aluminium operating handle while the new sheet steel enclosures, 63A and above, are fitted with a highly durable anodised aluminium operating handle. Both handles have been designed to retain the enclosure IP65 rating while withstanding 400°C.

Each unit is supplied with one of our base mounted interior switches, which are constructed from a high temperature grade thermoset material, designed specifically for ease of cabling and for installations where the supply must be maintained for 2 hours at 400°C.

Safety & Protection

The switchgear maintains the power and provides isolation to essential smoke extraction and ventilation equipment. All units are featured with our safety handles, that are lockable in both ON and OFF positions and be padlocked with up to three padlocks.

The full range of fire rated switchgear has been specially designed for installations where the power supply must be maintained even at high temperatures for the periods of time below:

F200: 200°C in 120 min
F300: 300°C in 60 mins
F400: 400°C in 120 min

To ensure a safe and reliable operation in abnormally hot environments, our products have been tested by a third party laboratory according to the standard EN 12101-3.