Fm approved. Number 3085.091, 9370051, 477. 2.2 kw/3 hp. 230/460 volt, 8.7/4.3 amps, 3 phase, 60 hz, 1700 rpm. Iec 34-1 1969 cl.F, 75 kg. Max operating temp t4, explosion proof for use in class 1, div 1, grp c and d. Dust ignition proof for use in class ii, div 1,grp e, F and g. Suitable for use in class iii, div 1. Hazardous locations, 104° F (40° c) ambient limits. Unit has a 3" reduced to 2.25" outlet.