Product Specifications

Heavy-Duty Sealed Snap Action Temperature Controls

The 14T line of heavy-duty sealed bimetal disc controls from Therm-O-Disc meets the higher electrical requirements of the commercial requirements for commerical applications. The design provides moisture resistance for moisture prone environments. The snap action of the 1 inch temperature sensing bimetal disc provides high speed contact separation resulting in exceptional life characteristics at electrical loads up to 25 amps at 120/240 VAC. A variety of mounting configurations, lead wires and terminations give you maximum design flexibility. The heavy-duty construction and long life characteristics have made the 14T a popular choice for heating, ventilation and air conditioning systems.

Additional Features and Benefits of the 14T:

• Sealed construction provides moisture resistance for moisture prone environments.

• High speed contact separation ensures long contact life.

• A variety of mounting configurations, lead wires and terminations provide maximum design flexibility.

• Large 25 amp capacity allows direct control of compressors and fans, reducing the need for additional components.

• The use of Statistical Process Control techniques in all phases of the manufacturing process results in consistently high quality levels.

Switch Actions and Typical Applications:

Automatic Reset SPST - In this configuraiton, the switch can be built to either open or close its electrical contacts on temperature rise. Once the temperature in the application has returned to your specified reset temperature, the contacts will automatically return to their original state. Typical uses of this construction include limiting and regulating temperatures in air conditioners, heat pumps and fan coil units.

Automatic Reset SPDT - This design is the same as the SPST described above with the addition of an auxiliary contact which makes circuit upon opening of the main contacts and breaks circuit when the main contacts reset. Typical uses of this construction include fan speed changeover at a specified temperature and lighting of an indicator lamp when an abnormal temperature condition has been reached.

Mounting Brackets:

Surface Mounting - The surface mounting configuration positions the bimetal disc sensing element firmly against the mounting surface, thereby sensing the actual mounting surface temperatures.

No Mounting Flange - The 14T is available without a mounting flange for customers who wish to design their own mounting method.

Tube Mounting - In this mounting configuraiton, the 14T is suppliled with a saddle shaped disc cup and a removable spring clip which holds the control firmly on a tube. This configuration is available for 3/8, 1/2 and 5/8 inch O.D. tubes.