stemco

358 Remote Sensing Thermostat

The 358 STEMCO capillary thermostats offers the same versatility as the 351 series with the addition of being a more compact design utilizing rear terminals, permits use in tight spaces where other controls will not.

quality ambient compensation

Our capillary thermostats also offer the option of being ambient compensated to offset the differential in temperature which keeps our thermostat controls more accurate as it’s environment changes.

certified

Senasys takes pride in quality control and reliable operation of our products. Every switch is individually 100% tested before it leaves the plant. Our capillary thermostats are UL & cUL approved.

custom options

Capillary thermostat switches built by Senasys can also be built to customer specifications. This insures you get the exact control you want without paying for features you don’t need.

MADE IN U.S.A.

Products are designed, manufactured, tested and shipped from Senasys’ facilities in Eau Claire, WI to clients across the globe. Every switch is individually 100% tested before it leaves the plant.

The 358 Series capillary thermostats offers the same versatility as the 351 series with the addition of being a more compact design utilizing rear terminals, permits use in tight spaces where other controls will not.

The DEMCO listing allows the 358 series to be used in products requiring European approvals.

The SPDT switch action allows for break on temperature rise or temperature fall.

The 358 Series is available with optional ambient compensation to offset the impact on calibration caused by the thermostat body being installed in high ambient locations

The 358 series close tolerances and narrow temperature differential make it ideal for commercial cooking equipment, Water Heaters and Dishwashers. The mounting bracket is available with standard centers of 1.75”, 1.312” and 28mm making it an easy replacement thermostat.

  • Temperature range 0°F to 600°F
  • Adjustable Temperature
  • Automatic Reset
  • SPDT Switch Action
  • 15-30 Amps
  • 250°F Maximum Ambient Temperature
  • Panel or Back Mounting Options
  • Back Terminal Location
  • Screw Driver or D-Shaft Adjustment Options
  • Copper, Nickel Plated Copper, One Piece Stainless Steel, or Two Piece Stainless Steel

Cross Reference

We are certain of our position at the top so we’re comparing our 358 Bulb and Capillary Thermostats with other top brands.

BRANDS

STEMCO

358 Series

PECO

Adjustable Temp. Range: 0-600F

Single Stage

Auto Reset

Back Screw Terminals

Rated Up to 25A @ 120VAC

Copper, Stainless Steel or Plated Material

UL / cUL Listed

Made in U.S.A.

Common Applications

Single Stage Bulb & Capillary Thermostats are commonly found in food service & HVAC equipment to control & limit the heating element temperature.

Food Service Equipment
Industrial

Mounting Options

The Screwdriver adjustment model with its front connect terminals is perfect for warming ovens, deep fat fryers, and commercial water heaters .

The D-Shaft adjustable model allows for easy installation of a knob, making it ideal for application s such as convection ovens, charbroilers, dishwashers , grills, electric toasters and toaster oven.

358 capillary thermostat specifications
Capillary thermostat bracket mount

D-shaft shown at 9 o’clock above. Turn shaft fully counterclockwise.

Fitting Options

Our Single Stage Bulb & Capillary Thermostats are available with a variety of standard fittings & bulb supports. 

See available fitting options below.

Standard Fittings

352 Bulb Support Fittings Diagram
Thread
Material
Hex Size
‘L’ Length
Finish
Part  #

1/8 NPT

Brass

7/16″

0.625″

None

368-67-03061

1/8 NPT

S-Steel

7/16″

0.625″

None

368-67-03023

1/4 NPT

Brass

5/8″

0.750″

None

368-67-03201

1/4 NPT

Brass

5/8″

0.750″

Nicked Plated

368-67-03202

1/4 NPT

S-Steel

5/8″

0.750″

None

368-67-03161

3/8 NPT

Brass

11/16″

0.750″

None

368-67-03001

3/8 NPT

Brass

11/16″

0.750″

Bright Nickel

368-67-03001P

3/8 NPT

S-Steel

11/16″

0.750″

None

368-67-03002

1/2 NPT

Brass

7/8″

0.875″

None

368-67-03101

1/2 NPT

Brass

7/8″

0.875″

Bright Nickel

368-67-03102

1/2 NPT

S-Steel

7/8″

0.875″

None

368-67-03103

Bulb Support Fittings

Our Single Stage Bulb & Capillary Thermostats are available with a variety of standard fittings & bulb supports. 

See available bulb support fittings below.

Standard Bulb Support Fittings

352 Bulb Support Fittings
Thread
Material
Hex Size
‘L’ Length
‘A’ Dia.
‘B’ Dia.
Finish
Part #

1/4 NPT

Brass

5/8″

1.620″

0.257″

0.390″

None

368-67-03241

1/4 NPT

S-Steel

5/8″

1.620″

0.147″

0.390″

None

368-67-03242

1/4 NPT

S-Steel

5/8″

1.620″

0.257″

0.390″

None

368-67-03243

1/2 NPT

S-Steel

7/8″

1.372″

0.257″

0.315″

None

368-67-03261

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