contact data, spst, normally closedref dwg group 217, electrical ratings, ac, 115vmax, 6 amp resistive current rating, heater data, ac, dc, 27.5 v rating, 4 w rating, current not rated; terminal data, 2 heater element terminals, 2 terminals for contacts; hermetically sealed; metal case; ambient temp range compensated for operation from minus 70 deg c to plus 70 deg c; rated for actuation time, 30 sec operating time, release time not rated; o/a dim., excl terminals, 2-3/8in. dia; mounts into 7 pin miniature socket