0contact data, spdt, rdg 217, electrical ratings, dc, 12v max, 5 amp resistive current rating, not rated for max current rating; heater data, dc, 12v max, not rated for w, not rated for current; terminal data, 2 heater terminals, 2 terminaal for contacts; dustproof; plastic enclosure; ambient temp range compensated for operation from 45 deg c to 70 deg c; not rated for actuation time; o/z dim., excl terminals, 2.875 in. lg, 1.250 in. w, 1.250 in. h; mounts into std octal socket; no special features; general purpose use