431-301A1 1/2″ Epoxy Sealed Thermostat Switch – Surface Mount (L)

(2 customer reviews)

$17.25

  • Open on Temperature Rise
  • Surface mount bracket
  • Epoxy Sealed for Extreme Environments
  • 12″ or 72″ 18AWG Wire leads. Other options available, contact us.
  • Temperature range of 20°F to 350°F
  • Automatic Reset
  • Single pole, single throw (SPST)
  • Up to 15 Amps @ 120 VAC
  • UL/cUL rated for 100,000 cycles
  • Operates with AC or DC
  • Made in the USA

Description

The 431-301A1 1/2″ Epoxy Sealed Thermostat Switch are used whenever a moisture or dustproof enclosure is required for safe, sensitive and reliable operation. A polypropylene boot enclosure filled with epoxy resin covers the thermostat. The bi-metal disc control element is in close proximity to the sensor cap to provide rapid response to temperature changes.

Since the bi-metal disc used in the Type 431 thermostat is thermally and electrically insulated the bi-metal disc reacts only to the temperature of the controlled device or medium surrounding the disc. Instantaneous, positive action of the disc prolongs thermostat life by minimizing arcing and eliminates chattering, false cycling and electrical interference with radio and television reception. Long life is assured with wiping contacts.

The temperature range determines when the thermal switch will close, or engage the electrical circuit, and when it will automatically reset, or open. A specific temperature range may be designed according to your application needs, or choose from our standard ranges.

The 1/2” Thermostat meets UL Standards 873 and 353 and is available in a single-pole, single-throw device. Temperature calibrations are preset, and all units are subject to 100% mechanical and thermal inspection.

Senasys’ 431-301A1 1/2″ Epoxy Sealed Thermostat Switch are designed for extended use in extreme environments , built using our patented metal sleeve rivet construction and sealed to protect against salt spray, water, moisture and heat.

Senasys 1/2″ Snap Disc Thermostats are quality-engineered thermal sensors specifically designed for a variety of major appliances, including clothes dryers, hot liquid and food-dispensing machines, room unit and space heaters, air conditioning systems, copy machines, engine heaters, and wood stoves.

Product Specifications

  • Open on Temperature Rise
  • Surface mount bracket
  • Epoxy Sealed for Extreme Environments
  • 12″ or 72″ 18AWG Wire leads. Other options available, contact us.
  • Temperature range of 20°F to 350°F
  • Automatic Reset
  • Single pole, single throw (SPST)
  • Up to 15 Amps @ 120 VAC
  • UL/cUL rated for 100,000 cycles
  • Operates with AC or DC
  • Made in the USA

Note: All sealed units take three days to build and cure.

For more information and product specifications, please view our catalog.

Senasys offers a variety of custom options such as terminals, temperature ranges and more. Please contact our direct customer service for more information.

Additional information

Weight N/A
1/2" Temperatures - L

045 Open 45°F ± 5°F Close 34°F ± 6°F (L527), 060 Open: 60°F ±5°F Close: 45°F ±5°F (L558), 075 Open: 75°F ±5°F Close: 60°F ±7°F (L636), 100 Open 100°F ± 5°F Close 85°F ± 5°F (L533), 125 Open 125°F ± 5°F, Close 105°F ±5°F (L610), 150 Open: 150°F ±5°F Close: 135°F ±5°F (L538), 170 Open: 170°F ±7°F Close: 155°F ±7°F (L540), 180 Open 180°F ± 5°F Close 155°F ± 5°F (L578), 190 Open 190°F ± 5°F Close 170°F ± 7°F (L588), 200 Open: 200°F ±5°F Close: 185°F ± 7°F (L543), 220 Open: 220°F ±5°F Close: 190°F ±8°F (L-665), 250 Open: 250°F ±5°F Close: 230°F ±7°F (L545)

Wire Leads

12" 18AWG Wire, 72" 18AWG Wire

2 reviews for 431-301A1 1/2″ Epoxy Sealed Thermostat Switch – Surface Mount (L)

  1. Andrew Bean (verified owner)

    Overall I’m pleased with this thermal switch. I did notice on the first few cycles that the upper cutout temp was 20-30% higher than rated; however after 5-6 cycles it came into spec range. The only other concern is the mounting plate material is fairly thin; another 5 or 10 thousand thickest would have been appreciated as I needed to drill out the mounting holes just a bit larger to fit on existing studs.

  2. Russell R. (verified owner)

    Fast shipping and the product is just as described

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