O-Z/Gedney Explosionproof Reducer Bushing RB-330S

THREADED, FLUSH MOUNT TYPE STEEL MATERIAL 13/16 INCH 1/2 INCH SMALL END TRADE SIZE 1-1/2 INCH LARGE END TRADE SIZE UL 886, CSA C22.2 APPROVAL CLASS I DIV 1 2 GROUP B C D, CLASS I ZONE 1 2 GROUP IIA IIB + H2, CLASS II DIV 1 2 GROUP E F G, CLASS III ENCLOSURE FINISH ZINC ELECTROPLATED APPLICABLE STANDARD NEC 500 TO 503/505 USED ON RIGID CONDUIT/IMC RB MODEL