Single mechanical-diaphragm pressure switch designed for use in oil and fluid grease lubrication systems with pressures up to 45 bar (652 psi). It can be used for pressure monitoring. Under pressure, a pressure plunger carries the contact washer to the opposing contact and closes the electrical circuit. If the pressure is reduced by the amount of hysteresis, the switch opens again. On an NC contact, contacts are made in the opposite way. In single-line systems, the sensor can be integrated before the last metering device at the end of the lubrication line.
