EUROSWITCH

VACUUM SWITCHES

Vacuum switches are devices designed to detect the achievement of a predetermined vacuum (negative pressure) threshold and convert it into an electrical signal for control and monitoring systems. Used across a wide range of industrial, automotive and mobile applications, they enable the automatic management of operating functions, status indication and the monitoring of system operating conditions.

Vacuum switches are available in the following configurations:

Normally Open (N.O.) contact
Normally Closed (N.C.) contact
SPDT changeover contact

Their operating principle is based on the balance between the vacuum acting on the sensing element and the force exerted by a calibrated spring. When the preset switching threshold is reached, the device changes the state of the electrical contact, generating the signal required by the control system.

In the N.O. configuration, the contact closes when the preset vacuum level is reached; in the N.C. configuration, the contact opens when the same threshold is reached.

SPDT versions incorporate a microswitch that simultaneously switches the Normally Open (N.O.) and Normally Closed (N.C.) contacts, providing maximum flexibility for control and monitoring applications.