Hazardous Area Zone 1 & Zone 2 Isolators ATEX Certified
Craig & Derricott isolators protect and maintain low voltage power distribution in hazardous area locations.
Hazardous Area Isolators
- Ex e Hazardous Area Zone 1 & Zone 2 Flameproof Isolators ATEX Certified
- Ex d Hazardous Area Zone 1 & Zone 2 Increased Safety Isolators ATEX Certified
Hazardous area isolators with current ratings 25A, 40A, 80A and 180A in either 3 or 4 pole versions complete with 1 N/O (Early Break) and 1 N/C (Late Make) auxiliary contacts.
Hazardous Area isolators – Zone 1, 2, 21 & 22
Ex e Protection – Selection Table
|Isolator Current Rating (A)||Format||Handle Colour||Craig & Derricott Catalogue Number||Optional Brass Earthing Plate Catalogue Number||Enclosure Size|
Isolators – dISCONNECTORS OR SWITCHES?
A Disconnector is a mechanical switch which in the “Open” position, complies with requirements specified for the isolating function. A Disconnector or Isolator is an off-load device and marked “Isolate elsewhere before opening” with an AC20/DC20 utilisation category.
A Switch is a mechanical switcing device capable of making, carrying or breaking current under normal circuit conditions, including specified operating overload conditions. A Switch can also carry, for a specified time, currents under specified abnormal circuit conditions, such as those of a short circuit (utilisation category AC32A duty).
A Switch-Disconnector meets both of these criteria and with a Red/Yellow padlockable handle may also be called a Safety Isolator.
➡ For complete technical details, hazardous area certifications and ordering details about isolators for both Ex d flameproof and Ex e increased safety applications please see the product sections below.