Section 22: Pressure, Vacuum, and Float Switches

Section 22: Pressure, Vacuum, and Float Switches

Pressure, Vacuum, and Float Switches
- Selection Guide
Electronic Pressure Sensors
Pressure Switches
Pressure Switches and Vacuum Switches
- Class 9012 and 9016 Electrical Ratings and Dimensions
Pressure Switches
- Class 9012G Dimensions
- Machine Tool, Modifications, and Accessories
Vacuum Switches
- Types GAW and GVG
Commercial Pressure Switches
Float Switches
Accessories and Renewal Parts
- Kits for Class 9012–9038 Devices

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Industrial, Type G

Class 9012 / Refer to Catalog 9012CT9701

Class 9012 Type G Pressure Switches


NEMA 1	Open Type

Fixed Differential, Open Type or NEMA 1 Enclosure

Range On Decreasing Pressure psig	Approximate Differential at Mid-Range psig ^[1]	Maximum Allowable Pressure psig	Open Type	NEMA 1
Range On Decreasing Pressure psig	Approximate Differential at Mid-Range psig ^[1]	Maximum Allowable Pressure psig	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

Adjustable Differential, Open Type or NEMA 1 Enclosure

Range On Decreasing Pressure psig	Approximate Mid-Range Differential Adds to Decreasing Set Point ^[1]	Maximum Allowable Pressure psig	Open Type	NEMA 1
Range On Decreasing Pressure psig		Maximum Allowable Pressure psig	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

Available Modifications ^[2]

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

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 Electrical Ratings

Temperature Rating Electrical Ratings

Renewal Parts Kits Renewal Parts for Class 9012–9038 Devices


	File E12158				File LR25490
	CCN NKPZ				Class 3211-03

Footnotes

Determines operating point on rising pressure.
Some product configurations are not available—contact your Schneider Electric representative for details.

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