General Purpose Pressure Switch ISG Series

A pressure switch made by SMC.

[Features]
· IP44 equivalent
· With light

[Applications]
Used for automatic pressure control of hydraulic, water pressure, liquid pressure and pneumatic applications in a wide variety of fields, such as machine tools, industrial machinery, compressors, chemical plants, and power plants.

(i)Remark

See catalog for specification details.
Product pictures are representations. CAD data is not supported for some model numbers.

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Product specification
Part Numbers
Catalog

Specifications of General-Purpose Pressure Switch ISG Series

External appearance of ISG Series open type

External appearance of ISG Series open type hysteresis scale plate type

External appearance of ISG Series drip-proof type

Model/Specification

Model		Pressure Adjustment Range MPa	Hysteresis adjustment range MPa	Proof Pressure MPa	Repeat accuracy MPa	Liquid-contacting parts material	Hysteresis scale plate	Electrical entry
Open type (Non-waterproof)	Drip-proof type	Pressure Adjustment Range MPa	Hysteresis adjustment range MPa	Proof Pressure MPa	Repeat accuracy MPa	Liquid-contacting parts material	Hysteresis scale plate	Electrical entry
ISG110-030	ISG210-030	0.02 to 0.3	0.015 to 0.2	1.0	±0.006	Brass•Phosphor Bronze	None	(Open type) Grommet (Drip-proof type) CAPCON (cable gland) ø11 to 13 (Diameter 11 to 13 mm)
ISG110-031	ISG210-031					Brass•Phosphor Bronze	Yes
ISG111-030	ISG211-030					SUS316	None
ISG111-031	ISG211-031					SUS316	Yes
ISG120-030	ISG220-030	0.05 to 0.7	0.02 to 0.35	1.5	±0.014	Brass•Phosphor Bronze	None
ISG120-031	ISG220-031		0.02 to 0.45			Brass•Phosphor Bronze	Yes
ISG121-030	ISG221-030		0.02 to 0.35			SUS316	None
ISG121-031	ISG221-031		0.02 to 0.45			SUS316	Yes
ISG130-030	ISG230-030	0.1 to 1.0	0.03 to 0.4	1.5	±0.02	Brass•Phosphor Bronze	None
ISG130-031	ISG230-031		0.03 to 0.6			Brass•Phosphor Bronze	Yes
ISG131-030	ISG231-030		0.03 to 0.4			SUS316	None
ISG131-031	ISG231-031		0.03 to 0.6			SUS316	Yes
ISG190-030	ISG290-030	-10 to -100 kPa	7 to 53 kPa	0.5	±2 kPa	Brass•Phosphor Bronze	None
ISG191-030	ISG291-030	-10 to -100 kPa	7 to 53 kPa	0.5	±2 kPa	SUS316	None

* Ambient and fluid temperature: 5 to 80°C (no freezing), contact configuration: 1a1b, 2ab (semi-standard), connection port size: 3/8, weight: 1.2 kg (open type), 1.3 kg (Drip-proof type)

Fluid

Operating fluid is limited by the material of wetted parts. Model with compatible material should be selected.

Fluid	Liquid-contacting parts material
Fluid	Bellows	Fluid intake part
Water, air, liquid,inert gas without corrosion	Phosphor bronze	Brass
* Fluid that does not corrode SUS316, such as steam (150°C or less)	SUS316	SUS316

* Use at an ambient temperature of 80°C or less.

JIS symbol

JIS symbol of ISG Series

Contact

1a1b type snap switch (standard)/2ab type snap switch contact configuration

Electrical rating

Rated voltage (V) *)	Non-inductive load (A)		Inductive load (A)
Rated voltage (V) *)	Load resistance	Lamp load	Inductive load	Electric motor load
AC110	12	2	12	3
AC220	10	1	10	1.5
AC440	6	1	3	1
DC24	3	2.5	3	2.5
DC48	1.5	1.2	1.5	1.25
DC110	0.5	0.25	0.5	0.2
DC220	0.25	0.1	0.25	0.1

Insulation Resistance: 100 MΩ or more (500 V DC by insulation resistance tester)
Withstand Voltage: 2,000 V AC for 1 minute
*) CE compliant products are compatible with 220 V AC and 110 V DC or less.

Diagram

Structural drawing of ISG Series

Number	Part Name
1	Set pressure regulating bolt
2	Scale plate
3	Pointer
4	Set pressure regulating spring
5	Main lever for actuation
6	Bellows assembly
7	Adjusting bolt between switch and push
8	1a+1b type snap switch

Number	Part Name
9	Main body
10	Hysteresis (ON-OFF width) adjustment spring
11	Hysteresis (ON-OFF width) adjustment bolt
12	Bracket
13	Grommet
14	Connection lever for switch operation
15	Stopper for operating lever

Dimensions

(Units: mm)

Dimensional drawing of open type ISG110 to 191-030 (without adjustment hysteresis scale plate)

Part number	A	B	C
ISG110-030 (-W)	172	54	19
ISG1□0 to 1□0-030 (-W)	169	51	19
ISG1□1 to 1□1-030 (-W)	177	59	23

Dimensional drawing of open type ISG110 to 131-031 (with adjustment hysteresis scale plate)

Part number	(A)	(B)	C
ISG110 to 130-031 (-W)	172	54	19
ISG111 to 131-031 (-W)	177	59	23

Dimensional drawing of drip-proof type ISG210 to 291-030 (without adjustment hysteresis scale plate)

Part number	A	B	C
ISG2□0 to 2□0-030 (-W)	173	55	19
ISG2□1 to 2□1-030 (-W)	178	60	23

Dimensional drawing of drip-proof ISG210 to 231-031 (with adjustment hysteresis scale plate)

Part number	（A）	（B）	C
ISG210 to 230-031 (-W)	173	55	19
ISG211 to 231-031 (-W)	178	60	23

*See the SMC catalog for information other than that detailed above.
*Product pictures are representative images.

Data to be displayed: 30; 45; 60

Part Number
ISG110-030-Q
ISG110-031-Q
ISG111-030-Q
ISG111-031-Q
ISG120-030-Q
ISG120-031-Q
ISG121-030-Q
ISG121-031-Q
ISG130-030-Q
ISG130-031-Q
ISG131-030-Q
ISG131-031-Q
ISG190-030-Q
ISG191-030-Q
ISG210-030-Q
ISG210-031-Q
ISG211-030-Q
ISG211-031-Q
ISG220-030-Q
ISG220-031-Q
ISG221-030-Q
ISG221-031-Q
ISG230-030-Q
ISG230-031-Q
ISG231-030-Q
ISG231-031-Q
ISG290-030-Q
ISG291-030-Q

Standard Unit Price	Minimum order quantity	Standard Shipping Days ?	Fluid Type	Plumbing Thread Type	Fluid Characteristics	Pressure Type	Liquid contact parts material	Details Type	Pressure Setting Range	Hysteresis scale plate for adjustment
71.48 €	1	4 Days	Air / Water / Nitrogen Gas / Argon	[Rc (R)] R	Noncorrosive / Inert	Positive Pressure	[Copper Alloy] Brass•Phosphor Bronze	Open type (equivalent to IP40)	0.02 to 0.3 MPa	None
95.71 €	1	4 Days	Air / Water / Nitrogen Gas / Argon	[Rc (R)] R	Noncorrosive / Inert	Positive Pressure	[Copper Alloy] Brass•Phosphor Bronze	Open type (equivalent to IP40)	0.02 to 0.3 MPa	With hysteresis scale plate
142.85 €	1	26 Days	Water	[Rc (R)] R	Noncorrosive	Positive Pressure	[Stainless Steel] EN 1.4401 Equiv.	Open type (equivalent to IP40)	0.02 to 0.3 MPa	None
146.44 €	1	26 Days	Water	[Rc (R)] R	Noncorrosive	Positive Pressure	[Stainless Steel] EN 1.4401 Equiv.	Open type (equivalent to IP40)	0.02 to 0.3 MPa	With hysteresis scale plate
71.48 €	1	4 Days	Air / Water / Nitrogen Gas / Argon	[Rc (R)] R	Noncorrosive / Inert	Positive Pressure	[Copper Alloy] Brass•Phosphor Bronze	Open type (equivalent to IP40)	0.05 to 0.7 MPa	None
95.71 €	1	4 Days	Air / Water / Nitrogen Gas / Argon	[Rc (R)] R	Noncorrosive / Inert	Positive Pressure	[Copper Alloy] Brass•Phosphor Bronze	Open type (equivalent to IP40)	0.05 to 0.7 MPa	With hysteresis scale plate
128.55 €	1	26 Days	Water	[Rc (R)] R	Noncorrosive	Positive Pressure	[Stainless Steel] EN 1.4401 Equiv.	Open type (equivalent to IP40)	0.05 to 0.7 MPa	None
146.44 €	1	4 Days	Water	[Rc (R)] R	Noncorrosive	Positive Pressure	[Stainless Steel] EN 1.4401 Equiv.	Open type (equivalent to IP40)	0.05 to 0.7 MPa	With hysteresis scale plate
71.48 €	1	4 Days	Air / Water / Nitrogen Gas / Argon	[Rc (R)] R	Noncorrosive / Inert	Positive Pressure	[Copper Alloy] Brass•Phosphor Bronze	Open type (equivalent to IP40)	0.1 to 1.0 MPa	None
95.71 €	1	4 Days	Air / Water / Nitrogen Gas / Argon	[Rc (R)] R	Noncorrosive / Inert	Positive Pressure	[Copper Alloy] Brass•Phosphor Bronze	Open type (equivalent to IP40)	0.1 to 1.0 MPa	With hysteresis scale plate
128.55 €	1	26 Days	Water	[Rc (R)] R	Noncorrosive	Positive Pressure	[Stainless Steel] EN 1.4401 Equiv.	Open type (equivalent to IP40)	0.1 to 1.0 MPa	None
146.44 €	1	4 Days	Water	[Rc (R)] R	Noncorrosive	Positive Pressure	[Stainless Steel] EN 1.4401 Equiv.	Open type (equivalent to IP40)	0.1 to 1.0 MPa	With hysteresis scale plate
82.11 €	1	4 Days	Air / Water / Nitrogen Gas / Argon	[Rc (R)] R	Noncorrosive / Inert	Vacuum Pressure	[Copper Alloy] Brass•Phosphor Bronze	Open type (equivalent to IP40)	-10 to -100 kPa	None
134.24 €	1	26 Days	Water	[Rc (R)] R	Noncorrosive	Vacuum Pressure	[Stainless Steel] EN 1.4401 Equiv.	Open type (equivalent to IP40)	-10 to -100 kPa	None
101.40 €	1	4 Days	Air / Water / Nitrogen Gas / Argon	[Rc (R)] R	Noncorrosive / Inert	Positive Pressure	[Copper Alloy] Brass•Phosphor Bronze	Drip-proof type (equivalent to IP44)	0.02 to 0.3 MPa	None
128.55 €	1	26 Days	Air / Water / Nitrogen Gas / Argon	[Rc (R)] R	Noncorrosive / Inert	Positive Pressure	[Copper Alloy] Brass•Phosphor Bronze	Drip-proof type (equivalent to IP44)	0.02 to 0.3 MPa	With hysteresis scale plate
149.27 €	1	26 Days	Water	[Rc (R)] R	Noncorrosive	Positive Pressure	[Stainless Steel] EN 1.4401 Equiv.	Drip-proof type (equivalent to IP44)	0.02 to 0.3 MPa	None
178.55 €	1	26 Days	Water	[Rc (R)] R	Noncorrosive	Positive Pressure	[Stainless Steel] EN 1.4401 Equiv.	Drip-proof type (equivalent to IP44)	0.02 to 0.3 MPa	With hysteresis scale plate
101.40 €	1	26 Days	Air / Water / Nitrogen Gas / Argon	[Rc (R)] R	Noncorrosive / Inert	Positive Pressure	[Copper Alloy] Brass•Phosphor Bronze	Drip-proof type (equivalent to IP44)	0.05 to 0.7 MPa	None
128.55 €	1	4 Days	Air / Water / Nitrogen Gas / Argon	[Rc (R)] R	Noncorrosive / Inert	Positive Pressure	[Copper Alloy] Brass•Phosphor Bronze	Drip-proof type (equivalent to IP44)	0.05 to 0.7 MPa	With hysteresis scale plate
149.27 €	1	16 Days	Water	[Rc (R)] R	Noncorrosive	Positive Pressure	[Stainless Steel] EN 1.4401 Equiv.	Drip-proof type (equivalent to IP44)	0.05 to 0.7 MPa	None
178.55 €	1	4 Days	Water	[Rc (R)] R	Noncorrosive	Positive Pressure	[Stainless Steel] EN 1.4401 Equiv.	Drip-proof type (equivalent to IP44)	0.05 to 0.7 MPa	With hysteresis scale plate
101.40 €	1	26 Days	Air / Water / Nitrogen Gas / Argon	[Rc (R)] R	Noncorrosive / Inert	Positive Pressure	[Copper Alloy] Brass•Phosphor Bronze	Drip-proof type (equivalent to IP44)	0.1 to 1.0 MPa	None
128.55 €	1	4 Days	Air / Water / Nitrogen Gas / Argon	[Rc (R)] R	Noncorrosive / Inert	Positive Pressure	[Copper Alloy] Brass•Phosphor Bronze	Drip-proof type (equivalent to IP44)	0.1 to 1.0 MPa	With hysteresis scale plate
149.27 €	1	26 Days	Water	[Rc (R)] R	Noncorrosive	Positive Pressure	[Stainless Steel] EN 1.4401 Equiv.	Drip-proof type (equivalent to IP44)	0.1 to 1.0 MPa	None
178.55 €	1	26 Days	Water	[Rc (R)] R	Noncorrosive	Positive Pressure	[Stainless Steel] EN 1.4401 Equiv.	Drip-proof type (equivalent to IP44)	0.1 to 1.0 MPa	With hysteresis scale plate
111.39 €	1	26 Days	Air / Water / Nitrogen Gas / Argon	[Rc (R)] R	Noncorrosive / Inert	Vacuum Pressure	[Copper Alloy] Brass•Phosphor Bronze	Drip-proof type (equivalent to IP44)	-10 to -100 kPa	None
162.16 €	1	26 Days	Water	[Rc (R)] R	Noncorrosive	Vacuum Pressure	[Stainless Steel] EN 1.4401 Equiv.	Drip-proof type (equivalent to IP44)	-10 to -100 kPa	None

Basic information

Type	Pressure Switch	Sensor/Monitor Configuration	Integrated Type	Output Method	Switch
Pipe Port Type	Male thread	Nominal Pipe Thread Size	3/8	No. of Outputs	1
Contact configuration	1a1b	Scale plate pressure unit	MPa	CE compliant	CE-compliant product

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Basic Attributes

Fluid Type
- Air
- Water
- Nitrogen Gas
- Argon
Clear
Pressure Type
- Positive Pressure
- Vacuum Pressure
Clear
Liquid contact parts material
- Copper Alloy
  - Brass•Phosphor Bronze
- Stainless Steel
  - EN 1.4401 Equiv.
Clear
Details Type
- Open type (equivalent to IP40)
- Drip-proof type (equivalent to IP44)
Clear
Pressure Setting Range
- -10 to -100 kPa
- 0.02 to 0.3 MPa
- 0.05 to 0.7 MPa
- 0.1 to 1.0 MPa
Clear
Hysteresis scale plate for adjustment
- None
- With hysteresis scale plate
Clear
Type
- ISG1□□
- ISG2□□
Clear
Plumbing Thread Type
- Rc (R)
  - R
- NPT
  - NPT
Clear
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