STEMCO Capillary Switch

Capillary Thermostats – SPDT

Single Pole, Double Throw Capillary Thermostats

Senasys offers a wide range of single pole, double throw capillary thermostats. Available field adjustable or fixed, the capillary thermostats can be manually or automatically reset. These high limit switches are highly versatile, carrying up to 30 amps. The capillary thermostat has a temperature range of 0°F-700°F, with a maximum ambient temperature up to 250°F.

If you do not know the switching temperature of your system, make sure you look at our digital switch. It has precise measurements with tight tolerances and differentials!


Internal Adjustable Thermostat SwitchFixed or Internal Adjustment

These fixed or internal adjustment thermostat switches (351 series and 358 series) are a highly versatile line of remote sensing thermostats available in bulb and capillary tube or probe styles. Carrying up to 30 Amps at 120VAC, the 351 series and 358 series are available SPDT.

These switches have a temperature range between 0°-700°F, with a max ambient temperature of 250°. The temperature range determines when the thermal switch will close, or engage the electrical circuit, and when it will automatically reset, or open. These switches can also be manually reset for when you need to call special attention to a temperature malfunction.

  • The Screwdriver adjustable model with front connect terminals is perfect for warming ovens, deep fat fryers and commercial water heaters.
  • The D shaft style has an adjusting knob which is great for convection ovens, charbroilers, grills, toaster ovens and dishwashers.
  • The fixed temperature models are typically used for safety or high and low limit applications.

Copper/Plated Copper or Stainless steel construction are available and all variations have multiple mounting options.

Custom options such as capillary tube lengths and custom temperature ranges are available. Please send a request for quote with your application details.

FEATURES
  • 0°F – 700°F Temperature Range
  • 250°F Maximum Ambient Temperature
  • SPDT
  • Fixed or Adjustable
  • 15-30 Amps
  • Automatic or Manual Reset
COMMON APPLICATIONS
  • Charbroilers
  • Commercial Cooking Equipment
  • Dishwashers
  • Water Heaters

For a more compact switch design, our 358 series has the same versatility as the 351 series, but with a smaller footprint. The 358 series has close tolerances and narrow temperature differentials. The mounting is available with standard centers of 1.75”, 1.312” and 28mm making it an easy replacement thermostat.

For more information on the compact, 358 series thermostat switches, click here to view the catalog.

For more information on the 351 series capillary switches, click here to view the catalog.

To view our standard options, visit our on-line store.

Purchase 351 series capillary thermostatsContact us about SPDT capillary thermostats

Operator Adjustable Thermostat Switch

Fixed or Operator Adjustable

The easy operator adjustable model, 354 series, uses a through shaft design which offers a smooth accurate movement. Combined with tight tolerances you get repeatability through the entire dial rotation.

These switches are a single-pole, double-throw device, rated up to 25 Amps at 120VAC. The 354 series capillary thermostats have a temperature range of 0-675°F, with a maximum ambient temperature of 150°F. The temperature range determines when the thermal switch will close, or engage the electrical circuit, and when it will automatically reset, or open.

This capillary thermostat is ideal in areas of limited depth with it’s side mounting capabilities. Also built using the D shaft style adjustable knob, it’s a great solution for a variety of control functions.

Copper/Plated Copper or Stainless steel construction are available and all variations have multiple mounting options.

Custom options such as capillary tube lengths and custom temperature ranges are available. Please send a request for quote with your application details.

FEATURES
  • 0°F – 675°F Temperature Range
  • 150°F Maximum Ambient Temperature
  • SPDT
  • Fixed or Operator Adjustable
  • 15-25 Amps
  • Automatic Reset
COMMON APPLICATIONS
  • Pool / Spa
  • Heaters
  • Pumps
  • Fan Controls
  • Commercial Ranges
  • Food Service Equipment

For more information and product specifications, click here to view our catalog.

To purchase our 354 series capillary thermostat switch, contact us.

Learn more about our operator adjustable capillary switches. Contact us about DPDT capillary thermostats