Bi-Metal Thermal cutouts
Elmwood Sensors Inc 3001-37-1-F212 74/52
Bi-Metal Thermal switch, normally-open, closes on increased temperature, re-opens on decrease. We cannot precisely quantify or certify the temperatures of operation, but 74/52 may approximate degrees C at closing/opening. Users must determine the suitability of this item for their application.
3001 Series Non-Hermetic Thermostats
(2) 1/8" QC terminals, 15.7mm round with oval base 30.4mm x 20.6mm ,
24mm mt centers. Please see: http://electronicsurplusblog.com/replacing-thermal-cutout-devices-with-surplus-look-alikes/