Used on controller,ac mag,11331. type a, 3 pole thermal bimetallic overload type relay; operating voltage 600.000 volts ac; current rating 87.000 amps ac; visible trip indicator with manual reset rod; operating temperature minus 40.000 deg. f to plus 167.000 deg. f; equipped with adjustment knob for adjusting trip rating of specific heater from 85.000 to 115.000 percent; vessel appl WMEC629, WHEC721, various
