SENASYS
3/4″ Manual Reset Snap Disc Thermostats
404 SERIES
Senasys manufactures 3/4″ Manual Reset Snap Disc Thermostats, 404 series. Our manual reset thermostat switches are ideal when you want to call special attention to a temperature malfunction. Because the switch needs to be manually reset, a human must interact with the switch and solve the problem before the equipment or appliance can work again.
CUSTOM OPTIONS
Variety of custom capabilities, such as terminal options, brackets, pipe and tube mounts, over-molding and epoxy sealing, and temperature specifications, to meet needs of original equipment manufacturers.
HIGH QUALITY
The snap-action of the bi-metal disc provides high-speed contact separation resulting in excellent life cycle characteristics. Senasys products are 100% tested before they leave our facilities.
CERTIFIED
All of our snap disc units are UL/cUL approved (USR).
MADE IN U.S.A.
Designed & manufactured in Eau Claire, WI, U.S.A.
The 404 Series is our 3/4″ manual reset snap disc thermostat. This series is ideally suited for applications where you want to call special attention to a specific temperature malfunction.
The 404 thermostats use a bi-metal disc for snap action, providing positive and instantaneous opening of the electric circuit.
The 404 series feature trip-free (M2) operation. Physical depression of the reset button holds the contact open and renders the device inoperative until the reset button is released.
The 404 series can be used as a safety limit that will break on temperature rise, or as a fan (cooling) limit that will break on temperature fall. Once tripped, the thermostat can be reset once the temperature has changed a minimum of 25°F. The reset differential will increase as the specified break temperature increases. The minimum reset temperature is 75°F (24°C).
To insure that a safe combination of thermostat and application is achieved, the purchaser must determine product suitability for their individual requirements.
Product Specifications
- 3/4″ Bi-Metal Snap Action Disc
- Manual Reset
- Opens (Breaks) on temperature rise
- SPST (Single Pole, Single Throw)
- 25 Amps @ 240VAC, 6,000+ cycles
- Gold contacts available for low electrical loads
- Temperature Range of 100°-350°F, ±25°F differential
- Standard Temperature Tolerance ±5°F, with ±3°F tolerance available.
- Available with exposed caps to provide a faster response time.
- Special black discs can be used to further improve the response to radiative heating in exposed units.
- Available with a variety of mounting brackets including surface, airstream and tube mounts.
- Variety of terminal options available.
- UL/cUL Listed
- Made in U.S.A.
For a more economical solution, Senasys has built relationships with overseas suppliers to provide our customers thermostats at a lower cost, with the same high quality as our snap disc thermostats built in the U.S.A. Additionally, this has allowed us to expand our catalog offering to meet other application requirements, including:
- Ratings up to 45A@250VAC
- TUV Listed
Contact us for more information.