The 10H series temperature control from  Sensience/THERM-O-DISC (Formerly ,Sub of Emerson Electric Co.) was developed to sense hot spots along the length of electric baseboard heaters. The snap action design provides high-speed contact separation resulting in excellent life cycle characteristics at electrical loads up to 25 amps at 277VAC. The 10H capillary tube is vacuum charged with selected fluids to give specific calibrations. When the calibration temperature is reached, a change in fluid vapor pressure allows the diaphragm to snap through and operate the contacts. Typical applications include electric baseboard heaters and other applications where it is necessary to sense temperatures along a continuous length.

Features:

Single pole, single throw
Capillary tube lengths from 24 inches to 144 inches
Available with either 1/4 inch, 90 degree blade terminals or 6.5 inch lead wires
“Push-on” screwless mounting
Manual reset available (M1 trip free construction)

Switch Actions :

Automatic Reset (Type 10H11) – SPST contacts open on temperature rise and automatically reset on temperature fall.

Manual Reset (Type 10H14) – SPST contacts open on temperature rise and can be reset when the control has cooled to a lower temperature and the reset button has been depressed.

Agency Ratings：

10H11:

UL /CSA ------ 277VAC/25A/100,000 cycles 

10H14:

UL (File. MH-5304)  ------ 277VAC/25A/6,000 cycles 

CSA (File. LR19988) ----- 277VAC/25A/6,000 cycles 

                                        350VAC/15A/ 6,000 cycles

                                         600VAC/10A/ 6,000 cycles
Part Numbering:
T-O-D 10H11 217028 L285F;
T-O-D 10H11 217056 L200F
T-O-D 10H11 221480 L170F；
T-O-D 10H11 221369 L195F；
T-O-D 10H11 221760 L285F；
T-O-D 10H14 212713 L290F；
T-O-D 10H14 212783 L290F；
T-O-D 10H14 212798 L 225F;
T-O-D 10H14 212540 L290F etc.