Nema Certification Testing

There is no standard sizes for nema enclosures.
Nema certification testing. What is a nema certification. Of particular interest to nema member companies is the process of product certification. Nema ul and csa ratings are based on similar application descriptions and follow similar guidelines. Are nema members impacted by conformity assessment issues.
Although nema does not specifically provide product or provider certification it does provide an extensive listing of testing and certification labs that provide certification. Within this sector there are generally two approaches employed third party certification by an independent testingcertification organization and suppliers declaration of conformance sdoc. The key difference between the three ratings is that nema does not require third party testing and leaves compliance completely up to the manufacturer. Certifigroup offers nema type testing for enclosures including ul50e nrtl certification.
What is nemas position on testing and labeling. While the nema website provides a general description of enclosure types for a complete description of enclosures including test requirements you will need the nema 250. The national electrical manufacturers association nema is a voluntary trade association for the electrical manufacturing industry. Nema and ul 50 enclosure type ratings are accepted all over north america and referenced in the national electric code nfpa ul standards and other product safety standards.
Nema national electrical manufacturers association certification. Nema technical the abcs of conformity assessment useful links. Product testing certification page content this list represents a sampling of electrical product testing and certification laboratories and is neither an endorsement nor a list of recommended service providers. Nemas position is that testing should be under sponsorship and procedures which meet the requirements of ansiastm e 1906 99 standard guide for general requirements for bodies operating product certification systems or ansiastm e 1904 99 guide for general criteria for a suppliers.
For various grades of electrical enclosures that are used in industry in north america nema defines standard in which enclosure are rated to provide protection against environmentalism hazards like dust water oil or coolant. This is asked a lot so we wanted to give some clarification. F2 labs can assist you with nema 250 testing and ul 50 testing and the proper certifications for your products.