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22-16
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All Rights Reserved
Pressure Switches Industrial, Type G
schneider-electric.us
Class 9012 / Refer to Catalog 9012CT9701
22
PRESSURE, VACUUM, AND FLOAT
SWITCHES
Class 9012 Type G Pressure Switches
NEMA 1
Open Type
Table 22.45: Fixed Differential, Open Type or NEMA 1 Enclosure
Range On
Decreasing
Pressure
psig
Approximate
Differential
at Mid-Range
psig [3]
Maximum Allowable
Pressure
psig
Open Type
NEMA 1
Catalog No. Catalog No.
Diaphragm Actuated—Nitrile (Buna-N) Diaphragm, Zinc Plated Steel Housing
0.2–10 0.4 ±0.1 100 9012GRO1 9012GRG1
1–40 1.2 ±0.3 100 9012GRO3 9012GRG3
1.5–75 2.2 ±0.4 240 9012GRO4 9012GRG4
3–150 4.2 ±1 475 9012GRO5 9012GRG5
5–250 7.4 ±2 750 9012GRO6 9012GRG6
13–425 13 ±3 850 — 9012GSG1
20–675 19 ±5 2000 — 9012GSG2
Piston Actuated—#440 Stainless Steel Piston. #303 Stainless Steel Housing,
Viton
®
Fluorocarbon Diaphragm and O-Ring, Teflon
®
Retaining Ring
20–1000 49 ±10 10000 — 9012GTG1
90–2900 141 ±15 15000 9012GTO2 9012GTG2
170–5600 200 ±40 20000 9012GTO3 9012GTG3
270–9000 350 ±45 25000 — 9012GTG4
Table 22.46: Adjustable Differential, Open Type or NEMA 1 Enclosure
Range On
Decreasing
Pressure
psig
Approximate Mid-
Range Differential
Adds to Decreasing
Set Point [3]
Maximum Allowable
Pressure
psig
Open Type
NEMA 1
Catalog No. Catalog No.
Diaphragm Actuated—Nitrile (Buna-N) Diaphragm, Zinc Plated Steel Housing
0.2–10 0.4–0.9 100 9012GNO1 9012GNG1
1–40 1.2–3.6 100 9012GNO3 9012GNG3
1.5–75 2.2–6.6 240 9012GNO4 9012GNG4
3–150 4.2–13.2 475 9012GNO5 9012GNG5
5–250 7.4–33.6 750 9012GNO6 9012GNG6
13–425 13–37.2 850 9012GPO1 9012GPG1
20–675 19–58.8 2000 9012GPO2 9012GPG2
Piston Actuated—#440 Stainless Steel Piston. #303 Stainless Steel Housing,
Viton Fluorocarbon Diaphragm and O-Ring, Teflon Retaining Ring
20–1000 49–150 10000 —
9012GQG1
90–2900 141–455 15000
9012GQO2 9012GQG2
170–5600 200–950 20000
9012GQO3 9012GQG3
270–9000 350–1400 25000 —
9012GQG4
Table 22.47: Available Modifications [4]
Modification
Applies to
Form
Standard Nitrile (Buna-N) diaphragm in
#316 stainless steel housing
Not available on GNG1, GNO1, GRG1, or GRO1.
Available on all other GNG, GNO, GPG, GPO, GRG,
GRO, GSG, and GSO switches.
Q1
Viton fluorocarbon diaphragm in #316
stainless steel housing
Not available on GNG1, GNO1, GRG1, or GRO1.
Available on all other GNG, GNO, GPG, GPO, GRG,
GRO, GSG, and GSO switches.
Q4
1/4–18 NPT external thread pressure
connection
GNG, GNO, GRG, GRO
Z
1/2–14 NPT external thread, 1/4–18 NPTF
internal thread pressure connection.
Standard actuator only.
GNG, GNO, GRG, GRO
Z16
7/16–20 UNF-2B internal thread pressure
connection
GNG, GNO, GPG, GPO, GQG, GQO, GRG, GRO, GSG,
GSO, GTG, GTO
Z18
Table 22.48: Class 9049 Accessories for Class 9012 Pressure Switches
Description Applies to Class Catalog No.
Stainless steel surge reducer for use on oils, coolants, and hydraulic fluids
(not recommended for air or water)
9012G 9049A26S
Acceptable Wire Sizes 12-22 AWG
Recommended Terminal Clamp Torque 7 lb-in
Electrical Rating page 22-19
Temperature Rating page 22-19
Renewal Parts Kits page 22-34
File E12158 File LR25490
CCN NKPZ Class 3211-03
[3] Determines operating point on rising pressure.
[4] Some product configurations are not available—contact your Schneider Electric representative for details.