Commercial electric thermostat 150-450F, 36" Capillary, 1/8"X 23-3/16" Bulb, with auxiliary switch, direct acting (switch contacts open on temperature rise). Factory Model SA-245. The 5300 Series Standard Thermostat is a SPST, snap-acting control.Replaces G.E./HOBART XNC8X134 54B116516P1 344635P4