EFH explosionproof flexible cushion fixture hangers are used in hazardous locations where a fixture must hang more than 12” from its supporting junction box (as required by NEC Article 501 and CEC Part I, Section 18). EFHs assure that fixtures hang plumb and will swing freely if accidentally struck, preventing damage to the fixture, stem and supporting outlet box and prolonging lamp life. EFH hangers are listed for fixtures weighing up to 65 lbs.
NEC/CEC
UL standard
CSA standard