NRG Global Instruments

The specifications of the pressure switch include the following. The range is -1 to 250 Bar. Contact rating is 5a, 10a, 15a at 250/125 Vacs. The process connection is ¼”,½”, ¾”, 3/8” Bsp or npt Threaded (m/f).

A pressure switch is a mechanical or electronic device that is activated when a certain threshold or setpoint is reached by the process fluid’s pressure. The pressure switch can differ depending on whether it consists of a bourdon tube, piston, diaphragm, or membrane that moves or deforms depending on the degree of pressure applied by the system. For example, an air pressure switch is used to maintain a constant pressure and can turn the compressor off once the tank reaches the required air pressure level.  If the air pressure drops and more is required, the switch can also turn the compressor on.