| Image | Part Number | Manufacturer | Description | Series | Mounting Type | Style | Number of Channels | Connector Type |
|---|---|---|---|---|---|---|---|---|
| 70GRCQ32-HL | Grayhill, Inc. | I/O MODULE RACK 32 CHANNEL | System 50 | Standoffs | G5 | 32 | Header, Screw Terminal Blocks | |
| P7TF-OS16 DC24V | Omron Automation & Safety | I/O MODULE RACK 16 CHANNEL | P7TF | DIN Rail | G3TA, G7T | 16 | Screw Terminal Blocks | |
| PB-16T | Crydom | I/O MODULE RACK 16 CHANNEL | PB | Standoffs | Standard | 16 | Screw Terminal Blocks | |
| 70MRCK8-EC | Grayhill, Inc. | I/O MODULE RACK 8 CHANNEL | System 50 | Standoffs | Mini | 8 | Card Edge, Screw Terminal Blocks | |
| PB-4C4 | Crydom | I/O MODULE RACK 4 CHANNEL | PB | Standoffs | C4 | 4 | Screw Terminal Blocks | |
| 70RCK4R | Grayhill, Inc. | I/O MODULE RACK 4 CHANNEL | System 50 | Standoffs | Standard | 4 | Screw Terminal Blocks | |
| 70LRCK24-HL | Grayhill, Inc. | I/O MODULE RACK 24 CHANNEL | System 50 | Standoffs | OpenLine® | 24 | Header, Screw Terminal Blocks | |
| 2971344 | Phoenix Contact | I/O MODULE RACK 4 CHANNEL | VARIOFACE, UMK | DIN Rail | - | 4 | Screw Terminal Blocks | |
| 70RCK16-HS | Grayhill, Inc. | I/O MODULE RACK 16 CHANNEL | System 50 | Standoffs | Standard | 16 | Header, Screw Terminal Blocks | |
| 2973041 | Phoenix Contact | I/O MODULE RACK CHANNEL | - | - | - | - | - |
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.