2 … 5
MC • Karl Dungs
, Inc.
• GGA
O
...A4 • Edition 2016.02 • P/N 271843
Specification
Max. Operating Pressure
MOP = 7 PSI (500 mbar)
Ambient / Medium Temperature
-40 °F ... +153 °F
(-40 °C … +67 °C)
Gases (both + and - connection)
Suitable for natural gas, propane,
butane, air & non aggressive gases.
Materials in contact with Gas
(+ connection)
Housing: Aluminum
Diaphragm: NBR-based rubber
Materials in contact with Gas/Air
(- connection )
Housing: Aluminum & Steel
Diaphragm: NBR-based rubber
Switching contact: Gold (Au)
°F
0
-40
+153
Gas
GGAO-A4... SPDT gas/gas differential pressure switch in pressure ranges. The differential pressure acts via the dia
-
phragm against the force of the setting spring on the microswitch. The pressure switch operates without
any auxiliary power.
Contact Rating
10 A resistive @ 120 VAC
5 A resistive @ 240 V
1 A max. @ 12 - 48 VDC
DDC-Application
min. 5 mA @ 5 VDC
max. 20 mA @ 24 VDC
Electrical Connection
Screw terminals via 1/2” NPT conduit
connection
Enclosure
NEMA Type 4
Ag
[A]
Switch
SPDT
Switch action
Pressure, vacuum of differential
pressure switch
[
V
]
[
A
]
[
Hz
]
[
VA
]
[PSI]
Model Description & Part Number
Type
Version
Description
Order No. Setting range
in. W.C.
Switching
hysteresis
in. W.C.
Factory
Calibration
Gas differential
pressure switch
GGAO-A4-4-2
GGAO-A4-4-3
GGAO-A4-4-5
GGAO-A4-4-6
Threaded connection
Threaded connection
Threaded connection
Threaded connection
271329
271330
271331
271332
0.16 - 1.20
0.40 - 4.00
2.00 - 20.00
12.00 - 60.00
≤ 0.12
≤ 0.20
≤ 0.40
≤ 1.2
Operation
Setpoint tolerance
Upper switching
pressure
Falling
Rising
Adjustment as pr
essur
e rises
Pressure
at meter
Switching h
yster
esis Δp
Lower switching
pressure
Definition of switching
hysteresis ∆p
The pressure difference between the
upper and lower switching pressures.
NEMA
SPDT
