snap disc thermostats AHR EXPO

To make this process easier, we created this simple cross reference guide in order to help you find a cross reference for your Selco temperature switch. If you have one of the part numbers listed in the below table, simply match it to our part number. As always, contact us for more information or visit our online store.

Senasys designs and manufactures manual reset and epoxy sealed snap disc thermostat switches. All switches are UL and CUL recognized, and made in the United States. Thermostat Switches are produced to exacting standards to meet the needs of original equipment manufacturers and instrument makers.


Selco OM Series Manual Reset Thermostat

Our Manual reset thermostat switches are ideal when you need to call special attention to a temperature malfunction. Simply stated, a human must interact with the switch and solve the problem before the equipment or appliance can work again.

432 manual reset snap disc thermostats have a temperature range of 100-350°F, with a differential temperature of 25°F minimum. Additionally, many standard ranges are also  available.

  • 15 Amps @ 120VAC; 10 Amps @ 240VAC
  • 100°-350°F, ±25°F
  • Small Footprint
  • Many mounting options, such as pipe and stud mounts

Purchase Manual Reset Thermostat Switches    Contact Senasys about manual reset thermostat switches.

 “T” SERIES – 1/2″ Epoxy Sealed 

Epoxy Sealed Thermostat Switch

Senasys Epoxy Sealed Bimetal Thermostats are single pole, single throw and are perfect for applications where a moisture and dust proof enclosure is required for a safe, sensitive, and reliable operation. The polypropylene boot enclosure, filled with epoxy resin, covers the thermostat and the the bimetal disc control element is in close proximity to the sensor cap to provide rapid response to temperature changes. Additionally, multiple mounting options, terminals, and temperatures are available.

431 Epoxy Sealed Bimetal Thermostats are highly versatile carrying up to 15 Amps at 120VAC and are available SPST. The bimetal thermodisc within is set to a precise temperature range between -20°-220°F (-25°-105°C). Your temperature range will determine when the thermal switch will close, or engage the electrical circuit, and when it will automatically reset, or open. Additionally, a specific temperature range may be designed according to your application needs.

  • High environmental exposure temperature of -20°F to 200°F
  • Single-pole, double-throw (SPDT)
  • 10 Amps

Purchase Manual Reset Thermostat SwitchesContact Senasys about manual reset thermostat switches.

Cross Reference Table 

Can’t find your part number listed? Contact us with your switch or application requirements and one of our customer service representatives will assist you!

T16 Model Automatic Reset, Surface Mount – Encapsulated, Open On Rise (Normally Closed), Set Point 32° – to 80° F,
120VAC, 10 Amps, Resistive, S.P.S.T., 100,000 Cycles
431 Series (301A) 1/2″ Epoxy Sealed Auto Reset, Small Surface Mount, 12″ 18AWG Wire, Standard Disc
T17 Model Automatic Reset, Clip Mount – Encapsulated, Open On Rise (Normally Closed) or Close on Rise (Normally Open), -4°F to 212°F, 120VAC, 10 Amps, Resistive, S.P.S.T., 100,000 Cycles 431 Series (301A) 1/2″ Sealed Bimetal Thermostat, Pipe Mount (Clip Included), Temps from 100°F to 250°F
OM Model Manual Reset, Surface or Stud Mount, Opens on rise 140° F to 320° F, Manual Reset 98° F to 224° F, Solder Terminals, Horizontal Quick Connects, or Vertical Quick Connects 432 Series (301A) 1/2″ Manual Reset, Surface Mount, Please Specify Temperature Code
Contact us for more information
CA/OA Model 1/2″ Auto Reset, SPST 430 Series 1/2″ Auto Reset, 15A at 120VAC, SPST, Please Specify Temperature Code
SE/SES Manual Reset Model 3/4″ Manual Reset, SPST 404 Series 3/4″ Manual Reset, 25A at 120VAC, SPST, Please Specify Temperature Code
SE/SES Auto Reset Model 3/4″ Auto Reset, SPST 2511 Series
402 Series
3/4″ Auto Reset, 25A at 240VAC, SPST, Please Specify Temperature Code


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    Temperature Switches
    Industrial Controls