Dungs GGW3 A4-U/2 X -0.4 - -3 mbar - ATEX Differential Pressure Switch (Negative Pressure)

Dungs Part Number: 248390

Special Order Item - 6- 8 Week Lead Time

Specifications

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 ¼ 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 auxiliary power.

Adjustment Range: -0.4 - -0.3 kPa (3.0 mbar)

Switching Difference: 0.03 kPa (0.3 mbar)

ATEX: II3G and II3D

ATEX Group: II

ATEX Category: 3

Atmosphere: Gas (G) and Dust (D)

Maximum surface temperature: +75 C

Max. Operating Pressure: 50 kPa (500 mbar) (50 kPa)

Pressure Connection:

p+: in the centre of the underside of the housing

G ¼-female thread as per ISO 228:

Gas or air

p+: laterally on the housing by means of

screw plug G ¼:

Gas or air

p-: laterally on the underside of the housing

G ¬¦¬º-female thread as per ISO 228:

Gas or air

Electrical Connections: screw type terminals via cable entry ATEX M20x1.5

IP Rating: IP65 (IEC529, EN 60529)

Dimensions

Mounting Orientation

	Standard Mounting Position
	The pressure switch is activated at a higher pressure when mounted horizontally: GGW 3 A4-U/2 X approx. + 0.05 kPa (0.5 mbar)
	The pressure switch is activated at a lower pressure if mounted horizontally overhead: GGW 3 A4-U/2 X approx. - 0.05 kPa (0.5 mbar)