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G4 I/O Family

Opto 22 G4 I/O Family offers I/O modules with an LED status indicator on the top of the module and a more compact footprint than the previous G1 I/O modules. The G4 product lineup includes not only discrete and analog I/O modules but also controllers, battery packs, fuse clips, tools, and accessories. The discrete I/O modules can switch up to 3A per channel, and each module is individually fused. The analog I/O modules provide complete electrical channel-to-channel isolation, which eliminates troublesome ground loop problems. The Opto 22 G4 products are guaranteed for life and are suitable for new installations, legacy Optomux and mistic systems, Raspberry Pi, and more.

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Types of Industrial Automation

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Part #

I/O Modules G4 DC Output 5-60 VDC, 5 VDC Logic with Manual/Auto Switch

G4ODC5MA
Opto 22
1: 44,49 €
5In Stock Restricted Availability

Mfr. Part No.
G4ODC5MA

Mouser Part No
94-G4ODC5MA

Opto 22

I/O Modules G4 DC Output 5-60 VDC, 5 VDC Logic with Manual/Auto Switch

Datasheet

5In Stock

44,49 €

43,97 €

43,60 €

Min.: 1
Mult.: 1

Restricted Availability

Mounting Fixings G4 PEM NUTS 100-PACK

G4-PEM-NUTS
Opto 22
1: 46,74 €
5In Stock

Mfr. Part No.
G4-PEM-NUTS

Mouser Part No
94-G4-PEM-NUTS

Opto 22

Mounting Fixings G4 PEM NUTS 100-PACK

Datasheet

5In Stock

46,74 €

46,45 €

45,86 €

45,43 €

View

Min.: 1
Mult.: 1

Mounting Fixings G4 MODULE SOCKET 100-PACK

G4-MOD-SOCKETS
Opto 22
1: 50,94 €
5Expected 09/04/2026

Mfr. Part No.
G4-MOD-SOCKETS

Mouser Part No
94-G4-MOD-SOCKETS

Opto 22

Mounting Fixings G4 MODULE SOCKET 100-PACK

Datasheet

5Expected 09/04/2026

50,94 €

48,98 €

48,39 €

47,85 €

View

Min.: 1
Mult.: 1

I/O Modules G4 DC Input - DC voltage, self-powered, normally open

G4IDC5-SW
Opto 22
1: 51,88 €
2In Stock Restricted Availability

Mfr. Part No.
G4IDC5-SW

Mouser Part No
94-G4IDC5-SW

Opto 22

I/O Modules G4 DC Input - DC voltage, self-powered, normally open

Datasheet

2In Stock

51,88 €

49,92 €

49,19 €

Min.: 1
Mult.: 1

Restricted Availability

I/O Modules G4 Digital Input Switch, 5, 15, 24 VDC Logic

G4SWIN
Opto 22
1: 38,59 €
Non-Stocked Lead-Time 6 Weeks Restricted Availability

Mfr. Part No.
G4SWIN

Mouser Part No
94-G4SWIN

Opto 22

I/O Modules G4 Digital Input Switch, 5, 15, 24 VDC Logic

Datasheet

Non-Stocked Lead-Time 6 Weeks

38,59 €

37,87 €

37,49 €

36,78 €

View

Min.: 1
Mult.: 1

Restricted Availability

I/O Modules G4 100 Ohm Platinum RTD Analog Input

G4AD10
Opto 22
1: 319,64 €
Non-Stocked Restricted Availability

Mfr. Part No.
G4AD10

Mouser Part No
94-G4AD10

Opto 22

I/O Modules G4 100 Ohm Platinum RTD Analog Input

Datasheet

Non-Stocked

319,64 €

Min.: 1
Mult.: 1

Restricted Availability

I/O Modules G4 4 to 20 mA Analog Input

G4AD3
Opto 22
1: 372,10 €
Non-Stocked Restricted Availability
New At Mouser

Mfr. Part No.
G4AD3

Mouser Part No
94-G4AD3

New At Mouser

Opto 22

I/O Modules G4 4 to 20 mA Analog Input

Datasheet

Non-Stocked

372,10 €

Min.: 1
Mult.: 1

Restricted Availability

I/O Modules G4 Type K Thermocouple Analog Input

G4AD8
Opto 22
1: 408,40 €
Non-Stocked Restricted Availability
New At Mouser

Mfr. Part No.
G4AD8

Mouser Part No
94-G4AD8

New At Mouser

Opto 22

I/O Modules G4 Type K Thermocouple Analog Input

Datasheet

Non-Stocked

408,40 €

Min.: 1
Mult.: 1

Restricted Availability

I/O Modules G4 4-20 mA Analog Output

G4DA3
Opto 22
1: 344,28 €
Non-Stocked Restricted Availability

Mfr. Part No.
G4DA3

Mouser Part No
94-G4DA3

Opto 22

I/O Modules G4 4-20 mA Analog Output

Datasheet

Non-Stocked

344,28 €

Min.: 1
Mult.: 1

Restricted Availability

I/O Modules G4 AC Input 190-280 VAC/VDC, 24 VDC Logic

G4IAC24A
Opto 22
1: 30,78 €
Non-Stocked Restricted Availability

Mfr. Part No.
G4IAC24A

Mouser Part No
94-G4IAC24A

Opto 22

I/O Modules G4 AC Input 190-280 VAC/VDC, 24 VDC Logic

Datasheet

Non-Stocked

30,78 €

29,78 €

27,88 €

Min.: 1
Mult.: 1

Restricted Availability

I/O Modules G4 DC Input 10-32 VDC, 5 VDC Logic with Manual/Auto Switch

G4IDC5MA
Opto 22
1: 52,54 €
Non-Stocked Restricted Availability
New At Mouser

Mfr. Part No.
G4IDC5MA

Mouser Part No
94-G4IDC5MA

New At Mouser

Opto 22

I/O Modules G4 DC Input 10-32 VDC, 5 VDC Logic with Manual/Auto Switch

Datasheet

Non-Stocked

52,54 €

51,47 €

50,71 €

49,96 €

View

Min.: 1
Mult.: 1

Restricted Availability

I/O Modules G4 AC Output 24-280 VAC, 15 VDC Logic

G4OAC15A
Opto 22
1: 30,65 €
Non-Stocked Restricted Availability

Mfr. Part No.
G4OAC15A

Mouser Part No
94-G4OAC15A

Opto 22

I/O Modules G4 AC Output 24-280 VAC, 15 VDC Logic

Datasheet

Non-Stocked

30,65 €

30,24 €

29,73 €

29,20 €

View

Min.: 1
Mult.: 1

Restricted Availability

I/O Modules G4 AC Output 24-280 VAC, 5 VDC Logic, with manual/auto switch

G4OAC5AMA
Opto 22
1: 47,85 €
Non-Stocked Restricted Availability

Mfr. Part No.
G4OAC5AMA

Mouser Part No
94-G4OAC5AMA

Opto 22

I/O Modules G4 AC Output 24-280 VAC, 5 VDC Logic, with manual/auto switch

Datasheet

Non-Stocked

47,85 €

43,97 €

43,60 €

Min.: 1
Mult.: 1

Restricted Availability

I/O Modules G4 DC Output 5-200 VDC, 24 VDC Logic

G4ODC24A
Opto 22
1: 29,66 €
Non-Stocked Restricted Availability

Mfr. Part No.
G4ODC24A

Mouser Part No
94-G4ODC24A

Opto 22

I/O Modules G4 DC Output 5-200 VDC, 24 VDC Logic

Datasheet

Non-Stocked

29,66 €

Min.: 1
Mult.: 1

Restricted Availability

Controller Accessories Brick Power Regulator

G4REG
Opto 22
1: 301,86 €
Non-Stocked Restricted Availability

Mfr. Part No.
G4REG

Mouser Part No
94-G4REG

Opto 22

Controller Accessories Brick Power Regulator

Non-Stocked

301,86 €

Min.: 1
Mult.: 1

Restricted Availability

I/O Modules G4 Digital Output Switch, 250 VAC

G4SWOUT
Opto 22
1: 43,02 €
Non-Stocked Restricted Availability

Mfr. Part No.
G4SWOUT

Mouser Part No
94-G4SWOUT

Opto 22

I/O Modules G4 Digital Output Switch, 250 VAC

Datasheet

Non-Stocked

43,02 €

42,49 €

42,07 €

41,75 €

View

Min.: 1
Mult.: 1

Restricted Availability

I/O Modules G4 Reed Relay Output, 5 VDC logic, normally open, Factory Mutual approved

G4ODC5RFM
Opto 22
1: 28,22 €
Non-Stocked Restricted Availability

Mfr. Part No.
G4ODC5RFM

Mouser Part No
94-G4ODC5RFM

Opto 22

I/O Modules G4 Reed Relay Output, 5 VDC logic, normally open, Factory Mutual approved

Datasheet

Non-Stocked

28,22 €

26,98 €

26,45 €

25,76 €

View

Min.: 1
Mult.: 1

Restricted Availability

I/O Modules G4 AC OUTPUT 12-280 VAC, 24 VDC LOGIC WITH HOA/SW

G4OAC24AMA
Opto 22
Restricted Availability

Mfr. Part No.
G4OAC24AMA

Mouser Part No
94-G4OAC24AMA

Opto 22

I/O Modules G4 AC OUTPUT 12-280 VAC, 24 VDC LOGIC WITH HOA/SW

Datasheet

Restricted Availability