| Image | Part Number | Manufacturer | Description | Series | Mounting Type | Style | Number of Channels | Connector Type |
|---|---|---|---|---|---|---|---|---|
| 70RCK8-HL | Grayhill, Inc. | I/O MODULE RACK 8 CHANNEL | System 50 | Standoffs | Standard | 8 | Header, Screw Terminal Blocks | |
| 2974299 | Phoenix Contact | I/O MODULE RACK 16 CHANNEL | VARIOFACE, UMK | DIN Rail | - | 16 | Screw Terminal Blocks | |
| PB-24M-V | Crydom | I/O MODULE RACK 24 CHANNEL | PB | Standoffs | Mini | 24 | Header, Screw Terminal Blocks | |
| 2962023 | Phoenix Contact | I/O MODULE RACK 16 CHANNEL | VARIOFACE, UM | DIN Rail | - | 16 | Header, Screw Terminal Blocks | |
| 2972819 | Phoenix Contact | I/O MODULE RACK CHANNEL | - | - | - | - | - | |
| 2974901 | Phoenix Contact | I/O MODULE RACK 16 CHANNEL | VARIOFACE, UMK | DIN Rail | - | 16 | Screw Terminal Blocks | |
| 5601741 | Phoenix Contact | I/O MODULE RACK CHANNEL | - | - | - | - | - | |
| PB-16H | Crydom | I/O MODULE RACK 16 CHANNEL | PB | Standoffs | Standard | 16 | Header, Screw Terminal Blocks | |
| 70LRCK16-DIN | Grayhill, Inc. | I/O MODULE RACK 16 CHANNEL | System 50 | DIN Rail | OpenLine® | 16 | Header, Screw Terminal Blocks | |
| PB-16M-C | Crydom | I/O MODULE RACK 16 CHANNEL | PB | Standoffs | Mini | 16 | 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.