Senasys has developed an easy 1/2″ epoxy sealed thermostat switches cross reference to help determine if our thermostats can replace others on the market.
Senasys offers snap disc thermostats as direct replacements for many existing thermostat options on the market. With competitive pricing, faster lead times, and the ability to customize thermostats to meet specific application requirements, Senasys stands out as a top producer of snap disc thermostats.
1/2″ Epoxy Sealed Thermostat Switches Cross Reference Guide
To assist you in finding the right replacement thermostat, we’ve created a simple cross-reference guide. If you have a part number found in one of the series listed below, match it to our part number. For more information, call us or visit our online store.
Benefits of Choosing Senasys 1/2″ Epoxy Sealed Thermostat Switches
- Tightest temperature tolerances: We can achieve a ±3°F temperature tolerance, whereas others on the market are ±5°F.
- Wider Fixed Temperature Range: Our thermostats can be set to open or close on temperature rise from -20°F to 220°F.
- Wide temperature differential range: We can reach a 130°F differential range!
- Variety of Options: With our in-house machining capabilities we are able to provide custom brackets and terminal options.
- Made in the U.S.A.: Senasys snap disc thermostats are designed and manufactured in Eau Claire, Wisconsin.
The 1/2″ epoxy sealed thermostat switches are commonly found in HVAC and food equipment used as a limit or control device when temperatures exceed the defined preset temperature. See how automatic reset thermostats are used in everyday applications by clicking here!
Need Assistance?: If your part number isn’t listed, our customer service team is here to help. Call us directly with your switch or application requirements, and a representative will assist you promptly.
Certified Quality: Senasys switches are UL/cUL recognized. Our dedicated customer service is ready to help you find the right switch for your application.
Find your replacement thermostat using the cross-reference guide below, or download the PDF document here. For further assistance, contact our support team.
| Senasys | Thermodisc | |
| 431 Series | 39T | |
| Size | 1/2″ | 1/2″ |
| Function | Open or Close on Temp Rise, Auto Reset | Open or Close on Temp Rise, Auto Reset |
| Mounting Brackets | Direct, Surface, or Tube Mount | Direct, Surface, or Tube Mount |
| Terminal Options | Wire Leads | Wire Leads or Pin Terminals |
| Temperature Range | 0°F to 221°F | 35° to 221°F |
| Differential | 10° to 130°F | 10° to 80°F |
| Temperature Tolerance | ±5°F | ±5°F |
| Switch Configuration | SPST | SPST |
| Voltage | 120VAC | 240VAC |
| Amperage | 15 | 15 |
| Sensor | Enclosed Bi-Metal Disc | Enclosed Bi-Metal Disc |
| Cycle Life | 100,000 | 100,000 |
| Approvals | UL / cUL | UL / cUL / CE |
| Origin | USA | Mexico |
