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.
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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
ISG230-N030-Q
ISG231-030-Q
ISG231-031-Q
ISG231-N030-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
101.40 €	1	26 Days	Air / Water / Nitrogen Gas / Argon	[NPT] NPT	Noncorrosive / Inert	Positive Pressure	[Copper Alloy] Brass•Phosphor Bronze	Drip-proof type (equivalent to IP44)	0.1 to 1.0 MPa	None
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
149.27 €	1	26 Days	Water	[NPT] NPT	Noncorrosive	Positive Pressure	[Stainless Steel] EN 1.4401 Equiv.	Drip-proof type (equivalent to IP44)	0.1 to 1.0 MPa	None
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
Plumbing Thread Type
- Rc (R)
  - R
- NPT
  - NPT
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□□
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