100-165F AUTO Limit Switch The Carrier HH18HA465 is a LIMIT SWITCH FOR REAR DISCHARGE HEAT PUMP. It requires 2 space, has a nominal current capacity of 20 Amps and a nominal voltage rating of 460VAC. The range for this model is 100-165F. The power (Watts) rating for the Carrier HH18HA465 is 30 Watt. The Carrier HH18HA465 High Limit Switch has a temperature range of 100-165F. It is used to protect the air conditioner compressor from overheating and possible damage. This product has an adjustment screw that can change the temperature at which the device operates. This high limit switch was designed for freezers with high humidity conditions. It's compatible with Qwest line of refrigerators and chest freezers. The INTELLISAFE/Qwest HH-18HA-465 High Limit Switch is a 130-160 F temperature switch that lets you know when your unit has reached its desired temperature, and will automatically shut off the compressor if it exceeds 165 F. This auto shut off feature makes sure that your unit runs safely and efficiently, while saving energy and money in the long run. The HH18HA465 is a Carrier high limit switch. These switches are used where process temperatures exceed the range of the normally-open limit controller and where it is necessary to interrupt The Carrier HH18HA465 limit switch becomes activated without any manual adjustments in response to a rise in temperature. High limit switches are used to close lower temperature limit switches, or to provide alarm system shutdown. Activate the high limit switch manually or automatically. The Carrier HH18HA465 Limit Switch is a very common device used to control appliances. It is used in heaters and air conditioners to alert the user when the desired temperature has been reached. The limit switch also turns on the fan, which will keep the heating element off of evaporation once the desired temperature is reached. The HH18HA465 High Limit Switch can be used for both 2 and 4 wire heating applications in water heaters, furnaces, boilers, etc. It comes with separate connectors for power and the signal wire. Comes with an 8 ft leadlength.