Of numerous Dwyer Instruments, Inc. issues enjoys enclosures that can end up being ranked weatherproof, dust-research, if not submersible. There are two main score rules having enclosure shelter class: NEMA and you may IEC.

In america, the fresh new Federal Electric Firms Association (NEMA) keeps publication 250-2003, Enclosures having Electricity Products, that’s commonly used getting evaluations. Underwriters Labs (UL) has actually comparable product reviews to your NEMA critiques. Meeting a good NEMA rating into the a product is going to be worry about-announced by the manufacturers. Read more