... box,terminal box,connection box, distribution box Can be used in Zone 1 and Zone 2one 2 dangerous places. CBJH-B junction box,terminal box,connection box ... IEC60079 standard request.Technical parameters:AH seriesflame-proof junction box code,outline and descriptions as the following table. ... be made..CBJH-1/2Jmeans:AH explosion-proof juncton box,pipe thread G1/2",2perpendicular entries with hung cover ...