Carrier HK06NB010 SPST Pressure Switch 1.18 " WC

The Carrier HK06NB010 SPST Pressure Switch 1.18" WC is a safety device applied to HVAC equipment to control air pressure by switching electrical circuits at set points. It works as a SPST switch, which means that it has one input and one output and can be either open or closed. Usually fitted in air handlers, fan coil units and other pressure-sensitive applications, this switch assists in controlling the pressure and flow rate to protect the equipment against pressures that are too high or too low.