Industrial Automation – Mouser United Kingdom

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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 #

Terminal Block Tools & Accessories G4 16-Position Strap for Single Rack, Black (10-Pack)

G4STRAPB-BLACK
Opto 22
1: £79.31
1In Stock
New At Mouser

Mfr. Part No.
G4STRAPB-BLACK

Mouser Part No
94-G4STRAPB-BLACK

New At Mouser

Opto 22

Terminal Block Tools & Accessories G4 16-Position Strap for Single Rack, Black (10-Pack)

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Datasheet

1In Stock

£79.31

£73.13

£71.80

£71.50

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Min.: 1
Mult.: 1

I/O Modules G4 AC Input 90-140 VAC/VDC, 5 VDC Logic

G4IAC5
Opto 22
1: £24.50
76In Stock Restricted Availability

Mfr. Part No.
G4IAC5

Mouser Part No
94-G4IAC5

Opto 22

I/O Modules G4 AC Input 90-140 VAC/VDC, 5 VDC Logic

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Datasheet

76In Stock

£24.50

£22.77

£22.72

£22.65

£20.50

Min.: 1
Mult.: 1

Restricted Availability

I/O Modules G4 DC Input 10-32 VDC, 5 VDC Logic

G4IDC5
Opto 22
1: £24.24
175In Stock Restricted Availability

Mfr. Part No.
G4IDC5

Mouser Part No
94-G4IDC5

Opto 22

I/O Modules G4 DC Input 10-32 VDC, 5 VDC Logic

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Datasheet

175In Stock

£24.24

£22.66

£21.90

£21.75

£21.48

Min.: 1
Mult.: 1

Restricted Availability

I/O Modules G4 DC Input 2.5-28 VDC, 5 VDC Logic

G4IDC5D
Opto 22
1: £23.88
149In Stock Restricted Availability

Mfr. Part No.
G4IDC5D

Mouser Part No
94-G4IDC5D

Opto 22

I/O Modules G4 DC Input 2.5-28 VDC, 5 VDC Logic

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Datasheet

149In Stock

£23.88

£22.11

£21.91

£21.71

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Min.: 1
Mult.: 1

Restricted Availability

I/O Modules G4 AC Output 12-140 VAC, 24 VDC Logic

G4OAC24
Opto 22
1: £24.53
52In Stock Restricted Availability

Mfr. Part No.
G4OAC24

Mouser Part No
94-G4OAC24

Opto 22

I/O Modules G4 AC Output 12-140 VAC, 24 VDC Logic

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Datasheet

52In Stock

£24.53

£21.74

£20.50

Min.: 1
Mult.: 1

Restricted Availability

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

G4OAC24A
Opto 22
1: £23.74
176In Stock Restricted Availability

Mfr. Part No.
G4OAC24A

Mouser Part No
94-G4OAC24A

Opto 22

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

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Datasheet

176In Stock

£23.74

£22.39

£22.07

£21.96

£20.50

Min.: 1
Mult.: 1

Restricted Availability

I/O Modules G4 AC Output 12-140 VAC, 5 VDC Logic

G4OAC5
Opto 22
1: £24.38
98In Stock Restricted Availability

Mfr. Part No.
G4OAC5

Mouser Part No
94-G4OAC5

Opto 22

I/O Modules G4 AC Output 12-140 VAC, 5 VDC Logic

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Datasheet

98In Stock

£24.38

£22.20

£21.87

£21.57

£20.50

Min.: 1
Mult.: 1

Restricted Availability

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

G4OAC5A
Opto 22
1: £23.34
363In Stock Restricted Availability

Mfr. Part No.
G4OAC5A

Mouser Part No
94-G4OAC5A

Opto 22

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

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Datasheet

363In Stock

£23.34

£21.85

£20.95

£20.90

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Min.: 1
Mult.: 1

Restricted Availability

I/O Modules G4 DC Output 5-60 VDC, 24 VDC Logic

G4ODC24
Opto 22
1: £24.29
150In Stock Restricted Availability

Mfr. Part No.
G4ODC24

Mouser Part No
94-G4ODC24

Opto 22

I/O Modules G4 DC Output 5-60 VDC, 24 VDC Logic

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Datasheet

150In Stock

£24.29

£21.76

£21.28

£21.20

£20.50

Min.: 1
Mult.: 1

Restricted Availability

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

G4ODC5
Opto 22
1: £25.53
336In Stock Restricted Availability

Mfr. Part No.
G4ODC5

Mouser Part No
94-G4ODC5

Opto 22

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

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Datasheet

336In Stock

£25.53

£21.95

£21.87

£21.80

£21.48

Min.: 1
Mult.: 1

Restricted Availability

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

G4ODC5A
Opto 22
1: £28.90
63In Stock Restricted Availability

Mfr. Part No.
G4ODC5A

Mouser Part No
94-G4ODC5A

Opto 22

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

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Datasheet

63In Stock

£28.90

£25.61

£23.42

Min.: 1
Mult.: 1

Restricted Availability

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

G4ODC5R
Opto 22
1: £25.71
173In Stock Restricted Availability
4On Order

Mfr. Part No.
G4ODC5R

Mouser Part No
94-G4ODC5R

Opto 22

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

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Datasheet

173In Stock

4On Order

£25.71

£22.77

£21.48

Min.: 1
Mult.: 1

Restricted Availability

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

G4IAC24
Opto 22
1: £22.78
50In Stock Restricted Availability
New At Mouser

Mfr. Part No.
G4IAC24

Mouser Part No
94-G4IAC24

New At Mouser

Opto 22

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

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Datasheet

50In Stock

£22.78

£21.74

£21.48

Min.: 1
Mult.: 1

Restricted Availability

Mounting Fixings G4 MODULE SOCKET 100-PACK

G4-MOD-SOCKETS
Opto 22
1: £44.47
10In Stock

Mfr. Part No.
G4-MOD-SOCKETS

Mouser Part No
94-G4-MOD-SOCKETS

Opto 22

Mounting Fixings G4 MODULE SOCKET 100-PACK

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Datasheet

10In Stock

£44.47

£42.76

£42.24

£41.77

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Min.: 1
Mult.: 1

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

G4IAC5A
Opto 22
1: £25.71
9In Stock Restricted Availability

Mfr. Part No.
G4IAC5A

Mouser Part No
94-G4IAC5A

Opto 22

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

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Datasheet

9In Stock

£25.71

£22.76

£22.17

£21.74

£20.50

Min.: 1
Mult.: 1

Restricted Availability

I/O Modules G4 AC Input 90-140 VAC/VDC, 5 VDC Logic, Low Impedance

G4IAC5L
Opto 22
1: £26.04
5In Stock Restricted Availability

Mfr. Part No.
G4IAC5L

Mouser Part No
94-G4IAC5L

Opto 22

I/O Modules G4 AC Input 90-140 VAC/VDC, 5 VDC Logic, Low Impedance

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Datasheet

5In Stock

£26.04

£23.81

£23.56

£23.03

£21.10

Min.: 1
Mult.: 1

Restricted Availability

I/O Modules G4 DC Input 10-32 VDC, 24 VDC Logic

G4IDC24
Opto 22
1: £24.12
7In Stock Restricted Availability
36Expected 12/02/2026

Mfr. Part No.
G4IDC24

Mouser Part No
94-G4IDC24

Opto 22

I/O Modules G4 DC Input 10-32 VDC, 24 VDC Logic

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Datasheet

7In Stock

36Expected 12/02/2026

£24.12

£23.29

£22.44

£21.48

Min.: 1
Mult.: 1

Restricted Availability

I/O Modules G4 DC Input 2.5-16 VDC, 5 VDC Logic, Very High Speed

G4IDC5K
Opto 22
1: £23.28
5In Stock Restricted Availability

Mfr. Part No.
G4IDC5K

Mouser Part No
94-G4IDC5K

Opto 22

I/O Modules G4 DC Input 2.5-16 VDC, 5 VDC Logic, Very High Speed

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Datasheet

5In Stock

£23.28

£21.21

£20.50

Min.: 1
Mult.: 1

Restricted Availability

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

G4ODC5MA
Opto 22
1: £38.84
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

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Datasheet

5In Stock

£38.84

£38.39

£38.06

Min.: 1
Mult.: 1

Restricted Availability

I/O Modules G4 Reed Relay Output, 5 VDC logic, normally closed

G4ODC5R5
Opto 22
1: £38.53
25In Stock Restricted Availability

Mfr. Part No.
G4ODC5R5

Mouser Part No
94-G4ODC5R5

Opto 22

I/O Modules G4 Reed Relay Output, 5 VDC logic, normally closed

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Datasheet

25In Stock

£38.53

£36.41

£35.85

£32.69

Min.: 1
Mult.: 1

Restricted Availability

Terminal Block Tools & Accessories G4 16-Position Strap for Single Rack, Red (10-Pack)

G4STRAPB
Opto 22
1: £84.52
5In Stock

Mfr. Part No.
G4STRAPB

Mouser Part No
94-G4STRAPB

Opto 22

Terminal Block Tools & Accessories G4 16-Position Strap for Single Rack, Red (10-Pack)

Learn More

Datasheet

5In Stock

£84.52

£74.89

£72.22

Min.: 1
Mult.: 1

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

G4IAC5MA
Opto 22
1: £42.99
13In Stock Restricted Availability

Mfr. Part No.
G4IAC5MA

Mouser Part No
94-G4IAC5MA

Opto 22

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

Learn More

Datasheet

13In Stock

£42.99

£41.91

£41.77

£41.64

View

Min.: 1
Mult.: 1

Restricted Availability

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

G4IDC5B
Opto 22
1: £22.81
18In Stock Restricted Availability

Mfr. Part No.
G4IDC5B

Mouser Part No
94-G4IDC5B

Opto 22

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

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Datasheet

18In Stock

£22.81

£22.44

Min.: 1
Mult.: 1

Restricted Availability

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

G4OAC15
Opto 22
1: £22.58
10In Stock Restricted Availability
New At Mouser

Mfr. Part No.
G4OAC15

Mouser Part No
94-G4OAC15

New At Mouser

Opto 22

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

Learn More

Datasheet

10In Stock

£22.58

£21.53

£20.50

Min.: 1
Mult.: 1

Restricted Availability

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

G4OAC5A5
Opto 22
1: £27.38
2In Stock Restricted Availability

Mfr. Part No.
G4OAC5A5

Mouser Part No
94-G4OAC5A5

Opto 22

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

Learn More

Datasheet

2In Stock

£27.38

£25.81

£25.61

£25.45

£25.14

Min.: 1
Mult.: 1

Restricted Availability

G4 I/O Family

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