Ask the Expert: Dwyer Applications Engineers

Dwyer strives to be the trusted leader in manufacturing innovative instrumentation solutions for the worldwide HVAC and process automation markets. Providing friendly, timely, and accurate technical service/support is just one way in which we accomplish this mission. It is a source of pride for the whole Dwyer team, and we’re happy to be able to assist our customers with their product application requirements. Continue reading “Ask the Expert: Dwyer Applications Engineers”

Enclosure Ratings for Personal Protection and Dust/ Water Ingress Protection

Weatherproof Enclosures

Many Dwyer Instruments, Inc. products have enclosures that are designed to be rated weatherproof, dust-proof, or even submersible. There are two main rating codes for enclosure protection classification: NEMA and IEC.

In the United States, the National Electrical Manufacturers Association (NEMA) has publication 250-2003, Enclosures for Electrical Equipment, that is commonly used for ratings. Underwriters Laboratories (UL) has similar ratings to the NEMA ratings. Meeting a NEMA rating on a product can be self-declared by the manufacturer based on product testing; whereas having UL approval to the rating requires testing by UL for proof that the product meets the standard. Continue reading “Enclosure Ratings for Personal Protection and Dust/ Water Ingress Protection”