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Adjustable Stainless Steel Temperature Switches

Adjustable Temperature Switches


Item# TSW-41

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 C$347.56
5-9 C$330.18
10-24 C$323.23
25-49 C$309.33
50-99 C$302.38
100+ C$295.43

In stock

Lead Time (If not in stock): 4 weeks
Adjustable Temperature Switches TSW-41 TSW-41
  • Compact and Economical
  • Ideal for Economical Temperature Switching Applications
  • External Temperature Scale Dial for Easy Setpoint Adjustments (°F only)
  • 1 Amp Gold Contacts for TTl and Dry Contact Closures

TSW-41 Model Options

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*Highlighted options are not compatible. Please select a different combination.

Adjustable Temperature Range
Supply Voltage
Switch Type
Probe Length
Probe Diameter
Sensor Material
Minimum Temperature
Maximum Temperature

OMEGA’s TSW series adjustable temperature switch is perfect for applications which require an economical solution to temperature control. The stainless steel stem of the TSW series switch is sealed and filled with a gas that expands as process temperature rises. A membrane within the switch body mechanically causes closure of a 5 Amp form C relay.

The 9.7 mm (0.38") diameter of the probe is designed to mate with OMEGA’s standard 385 series thermowells for your most rugged applications. See Section B of the OMEGA Complete Temperature Measurement and Control Handbook and Encyclopedia® for thermowell selection.

Part Number Temperature Range Contact Rating
TSW-11 -45 to -5°C (-49 to 23°F ) 1 ±.7 (1.3)
TSW-15 -45 to -5°C (-49 to 23°F) 5 ±.7 (1.3)
TSW-21 -25 to 20°C (-13 to 63°F) 1 ±.9 (1.6)
TSW-25 -25 to 20°C (-13 to 63°F) 5 ±.9 (1.6)
TSW-31 -5 to 35°C(23 to 95°F) 1 ±.8 (1.4)
TSW-35 -5 to 35°C (23 to 95°F) 5 ±.8 (1.4)
TSW-41 25 to 70°C (77 to 158°F) 1 ±.9 (1.6)
TSW-45 25 to 70°C (77 to 158°F) 5 ±.9 (1.6)
TSW-51 55 to 105°C (131 to 221F) 1 ±1.0 (1.8)
TSW-55 55 to 105°C(131 to 221°F) 5 ±1.0 (1.8)
TSW-61 80 to 125°C (176 to 257°F) 1 ±.9 (1.6)
TSW-65 80 to 125°C(176 to 257°F) 5 ±.9 (1.6)
TSW-71 115 to 175°C(239 to 347°F) 1 ±1.2 (2.2)
TSW-75 115 to 175°C (239 to 347°F) 5 ±1.3 (2.3)
TSW-81 175 to 230°C (347 to 456°F) 1 ±1.2 (2.1)
TSW-85 175 to 230°C (347 to 456°F) 5 ±1.2 (2.1)
TSW-91 200 to 265°C (392 to 509°F) 1 ±1.3 (2.4)
TSW-95 200 to 265°C (392 to 509°F ) 5 ±1.3 (2.4)
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How do we configure a hysteresis? Or other hand is the hysteresis fixed? What is the value?

Asked by: MiguelPinto
Hi MiguelPinto, Thank you for the inquiry. Hysteresis is fixed on this device. The value of hysteresis is 2 to 5 degrees F. Best regards, OMEGA
Answered by: NorwalkAE_RS
Date published: 2020-12-20

Does the TSW series have SPDT contacts?

Asked by: Ed in Arkansas
Thanks for your question. The TSW series does (Yes) have SPDT contacts. Please contact our Tech Support if you have any further questions.
Answered by: Jane
Date published: 2019-05-29
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