Fire Rated (F400 High Temperature) Isolators 20A-200A

Craig Derricott Fire Rated Isolation Switches

Fire Rated (F400 High Temperature) Isolators 20A-200A

Fire rated isolators (switch disconnectors) are installed throughout industrial, building services and HVAC (ventilation fans) projects providing excellent switching ability even under fire conditions. Fire rated isolators maintain electrical power to vital equipment, allowing safe evacuation of public areas. Often fire rated isolators are mounted local to the extraction fans and it is essential the isolators comply with the stringent requirements of BS EN 12101-3 : 2003.

Fire rated isolators (F400 class) are available in 20amp, 32amp, 63amp, 125amp, 160amp and 200amp current ratings.

Fire Rated Isolators for High Temperature Applications - Specification
According to BS EN 12101-3 (Smoke and Heat Control Systems), the specification which covers powered smoke and heat exhaust ventilators, there are several classes of fire performance duty. These fire ratings define specifically the temperature gradient and upper limit for the fire test as well as the time period over which the test will last.

F200 Fire Rating Test - 200 Degrees Celsius 120 Minutes
F300 Fire Rating Test - 300 Degrees Celsius 60 Minutes
F400 Fire Rating Test - 400 Degrees Celsius 120 Minutes


BS EN 12101-3 : 2003 specification calls for dynamic tests designed to check the performance of complete ventilation systems - the associated fire rating and fire performance of the electrical isolator is required to maintain the essential supply throughout the duration of the fire test.

Fire Rated Isolators (High Temperature) 20A-125A - Features

*Positive mode contacts
*IP65 ingress protection rating
*Padlockable in the "Off" and "On" positions
*Traffic red colour power coat finish
*F400 fire rated isolators (switch disconnectors) 

Craig & Derricott High Temperature Fire Rated Low Voltage Electrical IsolatorsFire Rated Isolators - Craig Derricott

Craig & Derricott has been producing electrical isolators and switch disconnectors for more than 30 years. Combining Craig & Derricott switching expertise with the specific requirements of the ventilation industry, led to the development of a ‘High Temperature Isolation’ range for fire rated applications. Excellent switching characteristics with high temperature environment contact stability makes this the ideal product range. The critical role these switches perform is to maintain the power to the ventilation equipment, allowing safe evacuation of a business or public area. Often, Craig & Derricott electrical isolators are mounted local to the extraction fans. As an assembly, it is essential isolation equipment complies with the stringent thermal requirements of BS EN 12101 - 2003. The complete range are housed in metal enclosures, the user can therefore be assured that there will be no distortion affecting the connecting cables and its supports. 

 

*Moulded Plastic Isolators & Switch Disconnectors IP65 20A-63A
*Mild Steel Isolators & Switch Disconnectors IP65 20A-63A
*Stainless Steel Isolators & Switch Disconnectors IP65 20A-63A
*Die Cast Isolators & Switch Disconnectors IP65 20A-63A
*Sheet Steel Isolators & Switch Disconnectors IP41 32A-630A
*Sheet Steel Isolators & Switch Disconnectors IP65 32A-1000A
*ATEX Zone 22 Isolators & Switch Disconnectors Cat 3D
*Fire Rated Isolators & Switch Disconnectors 20A-125A

 

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