351-254287 High Limit Capillary and Bulb Thermostat


  • Double Switch
  • Adjustable Temperature Switch (140°F-240°F)
  • Ambient Compensated (250°F)
  • Manual Reset
  • Made in the USA


High Limit Capillary and Bulb Thermostat.

Double Switch

The 351 series of Bulb & Capillary thermostat is our most versatile. The series is available in several variations including fixed and adjustable models with auto or manual reset. Numerous mountings, bulb material, and switches available, complete its versatility.

Part number: 351-254287 Switch A 351-254288, Switch B 351-254271

Alternate P/N: 122821D

Bulb: Qty  2 Material = Copper,  Length  3.0”, O.D .375”, Non-plated

Capillary: Qty 2 Material = Copper, Length 20” Non-plated

Hardware: Qty 2 Rubber Stops  NOTE: REQUIRES THERMOWELL P/N 351-849-142

Operating Temperature: Aprox 140° F to 240°F Adjustable, Ambient Compensated

Ambient Compensation: Ambient compensation allows for automatic switch adjustment with ambient operating temperature changes. Max Ambient Temperature 250°F Min Ambient Temperature 32°F

Electrical: Switch A 102W 240V AC @ 15 Amp, Single Pole, Normally open and Normally Closed, Adjustable Temperature.  Switch B 103K 240 V AC @ 30 Amp, Manual Reset Normally Closed

Mounting:  Bottom, Frame, 2 holes .203”D, 3.25” between Centers

Application: Commercial Water Heater, Booster Heater or Heating Unit

Description: Double Switch, High Limit Capillary and Bulb Thermostat.  Side A 102W, Adjustable, Ambient Compensated. Side B 103K Manual Reset, Manufacturer Direct, Made in USA by SENASYS, STEMCO Division

Price: $133.33

Additional information

Weight 9 oz
Dimensions 5.13 × 8.63 × 1.63 in


There are no reviews yet.

Be the first to review “351-254287 High Limit Capillary and Bulb Thermostat”

Your email address will not be published. Required fields are marked *