Q: I would like to use either FDY/PRG/4-20MA/12-42DC [HPDN] or FDY/PRG/4-20MA/12-42DC [BH2NG] and I want to install it in a control panel enclosure rated Type 4X. I need to ensure it is suitable for Class I, Div 2. Which one is the best solution?
A: The FDY/PRG/4-20MA/12-42DC [HPDN] without the BH2NG enclosure is Class I, Div 2 rated. It meets the Div 2 requirements when installed in your Type 4 box. You can download the certificate here.
The FDY/PRG/4-20MA/12-42DC [BH2NG], is an explosion proof transmitter approved for use in Class I, Div 1 hazardous areas. This is the same FDY device except it is housed inside the explosion proof/flameproof BH2NG enclosure. This BH2HG enclosure is also rated Type 4X & IP66 which means that it offers sufficient environmental protection to allow it to also be classified as a Class I, Div 2 or Non-Incendive device. The FDY/PRG/4-20MA/12-30DC/-ISF with the [HPDN] housing designation or enclosed in a BH type housing carries intrinsically-safe approvals.
Download the FDY datasheet.
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