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1/2" NPT Snap-Action Temperature Switches

Snap-Action Temperature Switches


Item# TSW-TD-1C-180R/WL

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 $49.14
5-9 $46.68
10-24 $45.70
25-49 $43.73
50-99 $42.75
100+ $41.77

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Lead Time ( If not in Stock): 4 weeks

Snap-Action Temperature Switches TSW-TD-1C-180R/WL TSW-TD-1C-180R/WL
  • High-Quality Snap-Action Switch
  • 5 Amp Contacts
  • Shock and Vibration Resistant
  • 1/2 NPT Mounting Threads
  • Factory Preset Temperature
  • Economical and Compact
  • NEMA 4, 13

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Switch Type
Switch Operation
Supply Voltage
Probe Length
Probe Diameter
Sensor Material
Maximum Temperature
Additional Features

Product Specs


Omega’s TSW-TD Series high quality snap-action temperature switches are perfect for applications that require an economical solution to simple temperature control. All switches activate with a rise in temperature and are shock and vibration resistant. TSW-TD Series offer a wide range of temperature pre-set values to select from.

Set Point Range: 65 to 149°C (150 to 300°F)
Set Point Tolerance: ±2.8°C (5°F)
Maximum Operating Temperature: 163°C (325°F)
Differential: -13.3 to -8.8°C (8 to 16°F)
Current Rating: 5 A @ 250 Vac, 5 A @ 30 Vdc (resistive)
Media Connection: ½ NPT male threads
Circuit Form: SPDT
Electrical Connection: 457 mm (18") wire leads
Maximum External Pressure: 2500 psi

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I bought one (TSW-TD-1c-250R/WL) for the purpose of regulating temperature in a heated stainless cabinet. I installed it and the temperature went high to 170 degrees C; it did not shut off. Is this intended for installing in a liquid piping?

Asked by: Martin A
Hi Martin This switch will activate on rising temperature at 250 F. It both NO and NC contacts. NO, black to red, will read closed when above the set point. The NC, black to blue, will read open above the set point. This is designed for liquid applications. Perhaps the unit is mounted where and air-pocket forms in the pipe. Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2021-02-03
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