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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Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS
Opto 22 Fuse Clips G4 Fuse Retaining Clip 10 Pack
Datasheet
1In Stock
Min.: 1
Mult.: 1

Opto 22 I/O Modules G4 DC Input 10-32 VDC, 24 VDC Logic
Datasheet
143In Stock
Min.: 1
Mult.: 1

Opto 22 I/O Modules G4 DC Input 10-32 VDC, 5 VDC Logic
Datasheet
209In Stock
Min.: 1
Mult.: 1

Opto 22 I/O Modules G4 DC Input 2.5-28 VDC, 5 VDC Logic
Datasheet
135In Stock
Min.: 1
Mult.: 1

Opto 22 I/O Modules G4 AC Output 24-280 VAC, 24 VDC Logic
Datasheet
119In Stock
Min.: 1
Mult.: 1

Opto 22 I/O Modules G4 DC Output 5-60 VDC, 5 VDC Logic
Datasheet
232In Stock
Min.: 1
Mult.: 1

Opto 22 I/O Modules G4 Reed Relay Output, 5 VDC logic, normally open
Datasheet
89In Stock
163Expected 15/06/2026
Min.: 1
Mult.: 1

Opto 22 Modules Accessories G4 Digital 4-Channel Mounting Rack
Datasheet
25In Stock
Min.: 1
Mult.: 1

Opto 22 Modules Accessories G4 16-channel I/O Module Rack
Datasheet
10In Stock
Min.: 1
Mult.: 1

Opto 22 Mounting Fixings G4 MODULE SOCKET 100-PACK
Datasheet
2In Stock
Min.: 1
Mult.: 1

Opto 22 Fuse Clips G4 FUSE SOCKET 100-PACK
Datasheet
1In Stock
Min.: 1
Mult.: 1

Opto 22 I/O Modules G4 AC Input 90-140 VAC/VDC, 5 VDC Logic, Low Impedance
Datasheet
1In Stock
Min.: 1
Mult.: 1

Opto 22 I/O Modules G4 DC Input - DC voltage, self-powered, normally open
Datasheet
6In Stock
Min.: 1
Mult.: 1

Opto 22 I/O Modules G4 AC Output 12-140 VAC, 24 VDC Logic
Datasheet
14In Stock
Min.: 1
Mult.: 1

Opto 22 I/O Modules G4 AC Output 12-140 VAC, 5 VDC Logic
Datasheet
38In Stock
45Expected 15/06/2026
Min.: 1
Mult.: 1

Opto 22 I/O Modules G4 DC Output 5-200 VDC, 5 VDC Logic
Datasheet
8In Stock
Min.: 1
Mult.: 1

Opto 22 I/O Modules G4 Reed Relay Output, 5 VDC logic, normally closed
Datasheet
27In Stock
Min.: 1
Mult.: 1

Opto 22 Modules Accessories G4 16-channel Mounting Rack with Header Connector
Datasheet
2In Stock
Min.: 1
Mult.: 1

Opto 22 Modules Accessories G4 16-channel I/O Module Rack with Terminal Strip
Datasheet
6In Stock
Min.: 1
Mult.: 1

Opto 22 Modules Accessories G4 4-channel Output Module Rack
Datasheet
8In Stock
Min.: 1
Mult.: 1

Opto 22 Modules Accessories G4 8-channel I/O Module Rack
Datasheet
1In Stock
Min.: 1
Mult.: 1

Opto 22 Terminal Block Tools & Accessories G4 16-Position Strap for Single Rack, Red (10-Pack)
Datasheet
3In Stock
4Expected 11/06/2026
Min.: 1
Mult.: 1

Opto 22 I/O Modules G4 AC Input 90-140 VAC/VDC, 24 VDC Logic
Datasheet
45In Stock
Min.: 1
Mult.: 1

Opto 22 I/O Modules G4 AC Input 90-140 VAC/VDC, 5 VDC Logic
Datasheet
44In Stock
Min.: 1
Mult.: 1

Opto 22 I/O Modules G4 AC Input 180-280 VAC/VDC, 5 VDC Logic
Datasheet
2In Stock
Min.: 1
Mult.: 1