Dungs GGW150 A4-U -30 - -150 mbar - Differential Pressure Switch (Negative Pressure) model_skp25_003e1 What does the utilisation category

What does the utilisation category AC1 and AC3 mean for the TeSys contactors

The pressure switch works without auxiliary power

PE050 Pressure Switch Application

Dungs Part Number: 231112

Lockout reset button with viewing window showing

Dungs GGW150 A4-U -30 - -150 mbar - Differential Pressure Switch (Negative Pressure) model_skp25_003e1 What does the utilisation categoryDungs Part Number: 247980 Dungs Minimum Pressure switch. The control unit reacts on negative pressure, which connects, disconnects or switches a circuit when exceeding or falling below a set nominal value. Simply acting pressure switch in negative pressure range. The G pressure connection must not be closed. The differential pressure acts on the micro switch via the membrane against the force of the adjusting spring. The pressure switch works without