Therm-O-Disc Type 10H14 Linear Limit 218025 With Manual Reset With 1/4" DIA. x 5" L Sensing Bulb - Contacts Open @ 210°F

List price $ 0.00

Therm Coil Drawing No. 337T-1172-002


This unit is specialized with a 1/4" DIA. x 5" ±1/2" long sensing bulb and 12" ±1" long capillary length which may be used in thermowell applications where the standard 10H14 limit would not normally be viable.

Typical applications for this style of limit include immersion heaters requiring a thermal limit at 210°F.

SPST contacts open on temperature rise at 210°F and can be reset when the
control has cooled to a lower temperature and the reset button has been depressed.

The manual reset is  an “M1 trip free” construction, which means that if the reset
button is held down, the control can cycle thermally. (NOTE: 
Manual reset controls may automatically reset when exposed to temperatures below –31°F (-35°C).)


  • SPST Contacts Open On Temperature Rise At 210°F
  • Tolerance: ±15°
  • Manual Reset Button: if held down, the control can cycle thermally.
  • Sensing Bulb: 1/4" DIA. x 5" (±1/2")
  • Capillary: 0.075" DIA. x 12" Length (±1" Length)
  • Maximum Capillary Temperature: 350°F
  • MAX. Resistive Load: 25 Amperes
  • Volts AC: 120V / 240V / 277V
  • Cycles: 6,000
  • Lead Wires: 14GA with 105°C PVC Insulation
  • Application: specialized applications where a sensing bulb is advantageous. 

Product Warranty

Thermostat Installation:

Prior to installation ensure that the thermostat is correct.   Thermostats are not returnable after installation.


Therm Coil makes no warranty that any of its products are suitable for any specific application.  The customer is solely responsible for selection of the subject product of  Therm Coil for use in the customer’s operations and applications.  Customers are urged to make all necessary tests to determine the suitability of any product of Therm Coil for use in the customer’s operations and applications prior to selecting such products for use.

The above specified product warranty provisions are especially applicable to this product, but be advised that both our Product Warranty Policy and Terms of Service are applicable to this product in their entirety.


Disclaimers: Therm Coil MFG. Co. is not affiliated with THERM-O-DISC, Inc., or any other listed manufacturers or their affiliates.