Product Specifications

Snap-Action Temperature Controls

The 60F/61F line of 3/4'' (19mm) bimetal disc temperature limit controls offers reliable one shot operation at temperatures up to 350F (177C). Utilizing the same bitmetal temperature sensing principle as the 60T automatic reset control, the 60F and 61F permit a uniform approach to the application of temperature limits. A wide variety of terminal and mounting configurations are available to give you maximum design flexibility. Rated for electrical loads up to 25 Amps at 600VAC (60F) and 48 Amps at 600VAC (61F), these temperatures limit controls provide unsurpassed over-temperature protection in a non-resettable design.

Features and Benefits

• Single operation for reliable, non-resettable, temperature limiting.

• Special Kapton insulator for application volages up to 600 VAC.

• Snap-action bimetal disc for high-speed contact separation.

• Welded construction for integrity of current carrying components.

• A wide variety of terminal and mounting options for design flexibility.

• Available with an exposed or enclosed bimetal disc for either increased thermal response or protection from airborne contamination.

Switch Action and Typical Application

The 60F and 61F are single pole, single throw (SPST) switches desinged to open their electrical contacts on temperature rise. Once the switch has operated, the unique bimetal fuse disc prevents reset of the contacts to their original state at temperatures above -31F (-35C).

The 60F reflects the same 25 Amp contact rating found in the 60T automatic reset seris while the 61F provides a higher current carrying construction for 48 Amp capability. The Therm-O-Disc 60F and 61F are typically utilized as primary or secondary temperature limits in electric heating equipment.