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General Purpose Pressure Switch ISG Series (ISG291-N030)

General Purpose Pressure Switch ISG Series ISG291-N030
  • On Sale Till 31/03/2025

SMC

SMC

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)Caution

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

PDF

Part Number

Configured Part Number is shown.

ISG291-N030

Specifications of General-Purpose Pressure Switch ISG Series

External appearance of ISG Series open type

External appearance of ISG Series open type

External appearance of ISG Series open type hysteresis scale plate type

External appearance of ISG Series open type hysteresis scale plate type

External appearance of ISG Series drip-proof type

External appearance of ISG Series drip-proof type

Model/Specification

ModelPressure Adjustment Range
MPa		Hysteresis adjustment range
MPa		Proof Pressure
MPa		Repeat accuracy
MPa		Liquid-contacting parts materialHysteresis scale plateElectrical entry
Open type (Non-waterproof)Drip-proof type
ISG110-030ISG210-0300.02 to 0.30.015 to 0.21.0±0.006Brass•Phosphor BronzeNone(Open type) Grommet
(Drip-proof type) CAPCON (cable gland)
ø11 to 13 (Diameter 11 to 13 mm)
ISG110-031ISG210-031Brass•Phosphor BronzeYes
ISG111-030ISG211-030SUS316None
ISG111-031ISG211-031SUS316Yes
ISG120-030ISG220-0300.05 to 0.70.02 to 0.351.5±0.014Brass•Phosphor BronzeNone
ISG120-031ISG220-0310.02 to 0.45Brass•Phosphor BronzeYes
ISG121-030ISG221-0300.02 to 0.35SUS316None
ISG121-031ISG221-0310.02 to 0.45SUS316Yes
ISG130-030ISG230-0300.1 to 1.00.03 to 0.41.5±0.02Brass•Phosphor BronzeNone
ISG130-031ISG230-0310.03 to 0.6Brass•Phosphor BronzeYes
ISG131-030ISG231-0300.03 to 0.4SUS316None
ISG131-031ISG231-0310.03 to 0.6SUS316Yes
ISG190-030ISG290-030-10 to -100 kPa7 to 53 kPa0.5±2 kPaBrass•Phosphor BronzeNone
ISG191-030ISG291-030SUS316None

* 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.

FluidLiquid-contacting parts material
BellowsFluid intake part
Water, air, liquid,inert gas without corrosionPhosphor bronzeBrass
* Fluid that does not corrode SUS316, such as steam (150°C or less)SUS316SUS316

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

JIS symbol

JIS symbol of ISG Series

JIS symbol of ISG Series

Contact

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

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

Electrical rating

Rated voltage (V) *)Non-inductive load (A)Inductive load (A)
Load resistanceLamp loadInductive loadElectric motor load
AC110122123
AC220101101.5
AC4406131
DC2432.532.5
DC481.51.21.51.25
DC1100.50.250.50.2
DC2200.250.10.250.1

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

Structural drawing of ISG Series

NumberPart Name
1Set pressure regulating bolt
2Scale plate
3Pointer
4Set pressure regulating spring
5Main lever for actuation
6Bellows assembly
7Adjusting bolt between switch and push
81a+1b type snap switch
NumberPart Name
9Main body
10Hysteresis (ON-OFF width) adjustment spring
11Hysteresis (ON-OFF width) adjustment bolt
12Bracket
13Grommet
14Connection lever for switch operation
15Stopper for operating lever

Dimensions

 

(Units: mm)

 

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

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

Part numberABC
ISG110-030 (-W)1725419
ISG1□0 to 1□0-030 (-W)1695119
ISG1□1 to 1□1-030 (-W)1775923
Dimensional drawing of open type ISG110 to 131-031 (with adjustment hysteresis scale plate)

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

Part number(A)(B)C
ISG110 to 130-031 (-W)1725419
ISG111 to 131-031 (-W)1775923
Dimensional drawing of drip-proof type ISG210 to 291-030 (without adjustment hysteresis scale plate)

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

Part numberABC
ISG2□0 to 2□0-030 (-W)1735519
ISG2□1 to 2□1-030 (-W)1786023
Dimensional drawing of drip-proof ISG210 to 231-031 (with adjustment hysteresis scale plate)

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

Part number（A）（B）C
ISG210 to 230-031 (-W)1735519
ISG211 to 231-031 (-W)1786023
  • *See the SMC catalog for information other than that detailed above.
  • *Product pictures are representative images.
30
45
60
  1. 1
Part Number
ISG291-N030
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipFluid Type Plumbing Thread Type Fluid Characteristics Pressure Type Liquid contact parts material Details Type Pressure Setting Range Hysteresis scale plate for adjustment Contact configuration Scale plate pressure unit CE compliant

-

1 Piece(s) 15 Day(s) Water[NPT] NPTNoncorrosiveVacuum Pressure[Stainless Steel] SUS 316Drip-proof type (equivalent to IP44)-10 to -100 kPaNone1a1bMPaNon-Compatible

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  1. 1
 

Basic Information

Type Pressure Switch Sensor, Monitor Structure Integrated shape Output Method Switch
Pipe Port Type Male thread Plumbing Thread Nominal 3/8 Number of Output Points 1

Please check the type/dimensions/specifications of the part ISG291-N030 in the General Purpose Pressure Switch ISG Series series.

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Specification/Dimensions

  • type

    • ISG110
    • ISG120
    • ISG130
    • ISG131
    • ISG190
    • ISG1□□
    • ISG210
    • ISG211
    • ISG220
    • ISG230
    • ISG231
    • ISG2□□

    Clear

  • 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
      • SUS 316
      • Stainless Steel

    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

  • Contact configuration

    • 1a1b
    • 2ab

    Clear

  • Scale plate pressure unit

    • Both MPa and psi
    • MPa

    Clear

  • CE compliant

    • CE-compliant product
    • Non-Compatible

    Clear

  • CAD

    • 2D
    • 3D

    Clear

Days to Ship

    • All
    • Same day
    • 15 Day(s) or Less
    • 20 Day(s) or Less
    • 31 Day(s) or Less
    • 59 Day(s) or Less

    Clear

Specify Alterations

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Part Number
ISG110-030-Q
ISG110-030-W
ISG110-031
ISG110-031-P
ISG110-031-Q
ISG291-N030-W
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipFluid Type Plumbing Thread Type Fluid Characteristics Pressure Type Liquid contact parts material Details Type Pressure Setting Range Hysteresis scale plate for adjustment Contact configuration Scale plate pressure unit CE compliant

-

1 Piece(s) 15 Day(s) Argon / Nitrogen Gas / Water / Air[Rc (R)] RInert / NoncorrosivePositive Pressure[Copper Alloy] Brass•Phosphor BronzeOpen type (equivalent to IP40)0.02 to 0.3 MPaNone1a1bMPaCE-compliant product

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1 Piece(s) 31 Day(s) Argon / Nitrogen Gas / Water / Air[Rc (R)] RInert / NoncorrosivePositive Pressure[Copper Alloy] Brass•Phosphor BronzeOpen type (equivalent to IP40)0.02 to 0.3 MPaNone2abMPaNon-Compatible

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1 Piece(s) 31 Day(s) Argon / Nitrogen Gas / Water / Air[Rc (R)] RInert / NoncorrosivePositive Pressure[Copper Alloy] Brass•Phosphor BronzeOpen type (equivalent to IP40)0.02 to 0.3 MPaWith hysteresis scale plate1a1bMPaNon-Compatible

-

1 Piece(s) 15 Day(s) Argon / Nitrogen Gas / Water / Air[Rc (R)] RInert / NoncorrosivePositive Pressure[Copper Alloy] Brass•Phosphor BronzeOpen type (equivalent to IP40)0.02 to 0.3 MPaWith hysteresis scale plate1a1bBoth MPa and psiNon-Compatible

-

1 Piece(s) 15 Day(s) Argon / Nitrogen Gas / Water / Air[Rc (R)] RInert / NoncorrosivePositive Pressure[Copper Alloy] Brass•Phosphor BronzeOpen type (equivalent to IP40)0.02 to 0.3 MPaWith hysteresis scale plate1a1bMPaCE-compliant product

3,442,515 IDR

1 Piece(s) 31 Day(s) Water[NPT] NPTNoncorrosiveVacuum Pressure[Stainless Steel] SUS 316Drip-proof type (equivalent to IP44)-10 to -100 kPaNone2abMPaNon-Compatible

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