Switch TypeThis describes the function of switches that turns tools on and off.
Lever and paddle allow users to hold the switches down with their fingers while gripping the tool, making them more comfortable for extended use than non-locking switches.Safety levers lock off until users engage a secondary switch to unlock the lever. Trigger (typically found on rat tail tools) allows users to hold the switch down with their index finger.
Open on RiseOpen on rise switches turn on the heating system when the temperature falls below a specified level.
Close on RiseClose on rise switches turn on the cooling system when the temperature rises above a specified level.
Open/Close on RiseOpen/close on rise switches turn on the heating or cooling system accordingly when the temperature falls or rises above a specified level.
Air-Coil & Bimetal Sensor Temperature Controls
These temperature controls have an air-coil or bimetal sensor that monitors and regulates the ambient air temperature. Controls with a bimetal sensor have the sensor inside the enclosure of the thermostat. Controls with an air-coil sensor have the sensor outside the housing of the thermostat. The sensor is directly in the airstream, so it gives a more accurate reading than bimetal sensors. These temperature controls are ideal for commercial and industrial HVAC applications where the temperature needs to be monitored at the location of the thermostat, such as commercial refrigeration, agriculture, and heating and cooling installations.
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