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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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Part #

I/O Modules G4 AC Input 90-140 VAC/VDC, 24 VDC Logic

G4IAC24
Opto 22
1: ₡18 237,11
45In Stock

Mfr. Part #
G4IAC24

Mouser Part #
94-G4IAC24

Opto 22

I/O Modules G4 AC Input 90-140 VAC/VDC, 24 VDC Logic

Datasheet

45In Stock

₡18 237,11

₡15 884,60

₡15 457,82

₡14 656,31

View

Min.: 1
Mult.: 1

I/O Modules G4 AC Input 90-140 VAC/VDC, 5VDC Logic, with Manual/Auto Switch

G4IAC5MA
Opto 22
1: ₡31 779,62
8In Stock

Mfr. Part #
G4IAC5MA

Mouser Part #
94-G4IAC5MA

Opto 22

I/O Modules G4 AC Input 90-140 VAC/VDC, 5VDC Logic, with Manual/Auto Switch

Datasheet

8In Stock

₡31 779,62

₡31 722,37

₡31 670,32

View

Min.: 1
Mult.: 1

I/O Modules G4 DC Input 4-16 VDC, 5VDC Logic High Speed

G4IDC5B
Opto 22
1: ₡17 513,66
Non-Stocked

Mfr. Part #
G4IDC5B

Mouser Part #
94-G4IDC5B

Opto 22

I/O Modules G4 DC Input 4-16 VDC, 5VDC Logic High Speed

Datasheet

Non-Stocked

₡17 513,66

₡16 597,64

₡16 420,68

₡16 415,48

View

Min.: 1
Mult.: 1

I/O Modules G4 AC Output 12-140 VAC, 15 VDC Logic

G4OAC15
Opto 22
1: ₡17 138,93
10In Stock

Mfr. Part #
G4OAC15

Mouser Part #
94-G4OAC15

Opto 22

I/O Modules G4 AC Output 12-140 VAC, 15 VDC Logic

Datasheet

10In Stock

₡17 138,93

₡15 431,80

₡15 353,73

₡13 500,87

Min.: 1
Mult.: 1

I/O Modules G4 AC Output, 24-280 VAC, 5 VDC Logic, Normally Closed

G4OAC5A5
Opto 22
1: ₡23 759,25
2In Stock

Mfr. Part #
G4OAC5A5

Mouser Part #
94-G4OAC5A5

Opto 22

I/O Modules G4 AC Output, 24-280 VAC, 5 VDC Logic, Normally Closed

Datasheet

2In Stock

₡23 759,25

₡20 974,76

₡20 724,93

₡20 199,26

₡17 831,14

Min.: 1
Mult.: 1

I/O Modules G4 DC Output 5-60 VDC, 15 VDC Logic

G4ODC15
Opto 22
1: ₡19 590,32
1In Stock

Mfr. Part #
G4ODC15

Mouser Part #
94-G4ODC15

Opto 22

I/O Modules G4 DC Output 5-60 VDC, 15 VDC Logic

Datasheet

1In Stock

₡19 590,32

₡16 649,69

₡14 151,45

Min.: 1
Mult.: 1

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

G4ODC5MA
Opto 22
1: ₡33 138,03
4In Stock

Mfr. Part #
G4ODC5MA

Mouser Part #
94-G4ODC5MA

Opto 22

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

Datasheet

4In Stock

₡33 138,03

₡30 660,62

₡29 359,45

₡28 729,69

₡26 064,91

Min.: 1
Mult.: 1

Modules Accessories G4 16-channel I/O Module Rack Isolated Control

G4PB16I
Opto 22
1: ₡118 619,27
1In Stock

Mfr. Part #
G4PB16I

Mouser Part #
94-G4PB16I

Opto 22

Modules Accessories G4 16-channel I/O Module Rack Isolated Control

Datasheet

1In Stock

₡118 619,27

₡110 671,76

₡108 116,28

₡107 330,37

View

Min.: 1
Mult.: 1

Mounting Hardware G4 PEM NUTS 100-PACK

G4-PEM-NUTS
Opto 22
1: ₡30 046,47
4In Stock

Mfr. Part #
G4-PEM-NUTS

Mouser Part #
94-G4-PEM-NUTS

Opto 22

Mounting Hardware G4 PEM NUTS 100-PACK

Datasheet

4In Stock

₡30 046,47

₡29 088,81

₡28 224,84

₡27 412,91

View

Min.: 1
Mult.: 1

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

G4OAC24AMA
Opto 22
1: ₡35 459,31
4In Stock

Mfr. Part #
G4OAC24AMA

Mouser Part #
94-G4OAC24AMA

Opto 22

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

Datasheet

4In Stock

₡35 459,31

₡31 259,15

₡30 816,76

₡29 947,58

View

Min.: 1
Mult.: 1

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

G4OAC24A
Opto 22
1: ₡19 871,37
337On Order

Mfr. Part #
G4OAC24A

Mouser Part #
94-G4OAC24A

Opto 22

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

Datasheet

337On Order

₡19 871,37

₡17 086,88

₡16 384,25

₡15 801,33

₡14 796,83

Min.: 1
Mult.: 1

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

G4ODC5A
Opto 22
1: ₡22 036,51
8Expected 8/28/2026

Mfr. Part #
G4ODC5A

Mouser Part #
94-G4ODC5A

Opto 22

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

Datasheet

8Expected 8/28/2026

₡22 036,51

₡18 731,55

₡15 921,04

Min.: 1
Mult.: 1

Modules Accessories G4 24-channel I/O Module Rack

G4PB24
Opto 22
1: ₡113 170,00
3Expected 9/2/2026

Mfr. Part #
G4PB24

Mouser Part #
94-G4PB24

Opto 22

Modules Accessories G4 24-channel I/O Module Rack

Datasheet

3Expected 9/2/2026

₡113 170,00

₡102 516,07

₡102 136,13

View

Min.: 1
Mult.: 1

I/O Modules G4 AC Input 180-280 VAC/VDC, 5 VDC Logic

G4IAC5A
Opto 22
1: ₡19 876,57
13Expected 9/2/2026

Mfr. Part #
G4IAC5A

Mouser Part #
94-G4IAC5A

Opto 22

I/O Modules G4 AC Input 180-280 VAC/VDC, 5 VDC Logic

Datasheet

13Expected 9/2/2026

₡19 876,57

₡17 409,57

₡17 263,84

₡16 514,37

₡14 796,83

Min.: 1
Mult.: 1

Battery Packs REPLACEMENT PART FOR G4 CONTROLLERS

G4BATT32
Opto 22
Shipping Restricted

Mfr. Part #
G4BATT32

Mouser Part #
94-G4BATT32

Opto 22

Battery Packs REPLACEMENT PART FOR G4 CONTROLLERS

Datasheet

Shipping Restricted

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

G4IAC24A
Opto 22
1: ₡17 243,02
Non-Stocked Lead-Time 4 Weeks

Mfr. Part #
G4IAC24A

Mouser Part #
94-G4IAC24A

Opto 22

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

Datasheet

Non-Stocked Lead-Time 4 Weeks

₡17 243,02

₡15 822,15

₡15 639,99

Min.: 1
Mult.: 1

I/O Modules G4 100 Ohm Platinum RTD Analog Input

G4AD10
Opto 22
1: ₡208 259,03
Non-Stocked

Mfr. Part #
G4AD10

Mouser Part #
94-G4AD10

Opto 22

I/O Modules G4 100 Ohm Platinum RTD Analog Input

Datasheet

Non-Stocked

₡208 259,03

₡205 099,80

₡202 840,98

Min.: 1
Mult.: 1

I/O Modules G4 4 to 20 mA Analog Input

G4AD3
Opto 22
1: ₡239 138,24
Non-Stocked

Mfr. Part #
G4AD3

Mouser Part #
94-G4AD3

Opto 22

I/O Modules G4 4 to 20 mA Analog Input

Datasheet

Non-Stocked

₡239 138,24

Min.: 1
Mult.: 1

I/O Modules G4 Type K Thermocouple Analog Input

G4AD8
Opto 22
1: ₡247 158,61
Non-Stocked

Mfr. Part #
G4AD8

Mouser Part #
94-G4AD8

Opto 22

I/O Modules G4 Type K Thermocouple Analog Input

Datasheet

Non-Stocked

₡247 158,61

Min.: 1
Mult.: 1

I/O Modules G4 4-20 mA Analog Output

G4DA3
Opto 22
1: ₡223 888,60
Non-Stocked

Mfr. Part #
G4DA3

Mouser Part #
94-G4DA3

Opto 22

I/O Modules G4 4-20 mA Analog Output

Datasheet

Non-Stocked

₡223 888,60

₡219 797,74

Min.: 1
Mult.: 1

Ethernet Development Tools Ethernet I/O Upgrade for B4 Brain

G4EB2
Opto 22
1: ₡506 480,49
Non-Stocked

Mfr. Part #
G4EB2

Mouser Part #
94-G4EB2

Opto 22

Ethernet Development Tools Ethernet I/O Upgrade for B4 Brain

Datasheet

Non-Stocked

₡506 480,49

Min.: 1
Mult.: 1

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

G4IDC5MA
Opto 22
1: ₡33 689,73
Non-Stocked

Mfr. Part #
G4IDC5MA

Mouser Part #
94-G4IDC5MA

Opto 22

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

Datasheet

Non-Stocked

₡33 689,73

₡32 529,09

₡31 816,05

₡31 186,29

View

Min.: 1
Mult.: 1

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

G4OAC15A
Opto 22
1: ₡19 210,38
Non-Stocked

Mfr. Part #
G4OAC15A

Mouser Part #
94-G4OAC15A

Opto 22

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

Datasheet

Non-Stocked

₡19 210,38

₡18 445,29

₡17 935,24

₡17 508,46

View

Min.: 1
Mult.: 1

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

G4OAC5AMA
Opto 22
1: ₡31 737,98
Non-Stocked

Mfr. Part #
G4OAC5AMA

Mouser Part #
94-G4OAC5AMA

Opto 22

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

Datasheet

Non-Stocked

₡31 737,98

₡28 136,36

₡26 392,80

Quote

Min.: 1
Mult.: 1

I/O Modules G4 AC Output 12-140 VAC, 5 VDC Logic with Manual/Auto Switch

G4OAC5MA
Opto 22
1: ₡34 043,64
Non-Stocked

Mfr. Part #
G4OAC5MA

Mouser Part #
94-G4OAC5MA

Opto 22

I/O Modules G4 AC Output 12-140 VAC, 5 VDC Logic with Manual/Auto Switch

Datasheet

Non-Stocked

₡34 043,64

₡30 660,62

₡29 879,92

₡29 270,97

₡26 064,91

Min.: 1
Mult.: 1