| Image | Part Number | Manufacturer | Description | Series | Mounting Type | Style | Number of Channels | Connector Type |
|---|---|---|---|---|---|---|---|---|
| PB-8M | Crydom | I/O MODULE RACK 8 CHANNEL | PB | Standoffs | Mini | 8 | Card Edge, Screw Terminal Blocks | |
| 2IO4B | Agastat Relays / TE Connectivity | I/O MODULE RACK 4 CHANNEL | 2IO | Standoffs | Standard | 4 | Screw Terminal Blocks | |
| 70LRCK8-DIN | Grayhill, Inc. | I/O MODULE RACK 8 CHANNEL | System 50 | DIN Rail | OpenLine® | 8 | Header, Screw Terminal Blocks | |
| PB-16A | Crydom | I/O MODULE RACK 16 CHANNEL | PB | Standoffs | Standard | 16 | Card Edge, Screw Terminal Blocks | |
| P7TF-OS08 DC24V | Omron Automation & Safety | I/O MODULE RACK 8 CHANNEL | P7TF | DIN Rail | G3TA, G7T | 8 | Screw Terminal Blocks | |
| 2976721 | Phoenix Contact | I/O MODULE RACK 16 CHANNEL | VARIOFACE, UMK | DIN Rail | - | 16 | Header, Screw Terminal Blocks | |
| MS-24H | Crydom | I/O MODULE RACK 24 CHANNEL | MS | Standoffs | Mini | 24 | Card Edge, Screw Terminal Blocks | |
| RT1-IA16-100V-S | Panasonic | I/O MODULE RACK CHANNEL | - | - | - | - | - | |
| PB-8SM-B | Crydom | I/O MODULE RACK 8 CHANNEL | PB | Standoffs | Mini | 8 | Card Edge, Screw Terminal Blocks | |
| PB-24SM-C | Crydom | I/O MODULE RACK 24 CHANNEL | PB | Standoffs | Mini | 24 | Header, Screw Terminal Blocks |
I/O relay module racks are mounting structures or enclosures designed to accommodate multiple I/O relay modules in a compact and organized manner. These racks provide a centralized and easily accessible location for installing and wiring I/O relay modules, simplifying installation, troubleshooting, and maintenance tasks in control and automation systems.