| Image | Part Number | Manufacturer | Description | Series | Mounting Type | Style | Number of Channels | Connector Type |
|---|---|---|---|---|---|---|---|---|
| 70MRCK24-DIN | Grayhill, Inc. | I/O MODULE RACK 24 CHANNEL | System 50 | DIN Rail | Mini | 24 | Header, Screw Terminal Blocks | |
| 70MRCK8-HS | Grayhill, Inc. | I/O MODULE RACK 8 CHANNEL | System 50 | Standoffs | Mini | 8 | Header, Screw Terminal Blocks | |
| 2979498 | Phoenix Contact | I/O MODULE RACK 16 CHANNEL | VARIOFACE, UMK | DIN Rail | - | 16 | Header, Screw Terminal Blocks | |
| 2976420 | Phoenix Contact | I/O MODULE RACK 8 CHANNEL | VARIOFACE, UMK | DIN Rail | - | 8 | Screw Terminal Blocks | |
| PB-8SM-V | Crydom | I/O MODULE RACK 8 CHANNEL | PB | Standoffs | Mini | 8 | Header, Screw Terminal Blocks | |
| 2972835 | Phoenix Contact | I/O MODULE RACK 4 CHANNEL | VARIOFACE, UMK | DIN Rail | - | 4 | - | |
| PB-24SM-BV | Crydom | I/O MODULE RACK 24 CHANNEL | PB | Standoffs | Mini | 24 | Header, Screw Terminal Blocks | |
| 70LRCK16-48 | Grayhill, Inc. | I/O MODULE RACK 16 CHANNEL | OpenDAC® | DIN Rail | OpenLine® | 16 | DIN Connector | |
| PB-32M-C | Crydom | I/O MODULE RACK 32 CHANNEL | PB | Standoffs | Mini | 32 | Header, Screw Terminal Blocks | |
| 2971357 | Phoenix Contact | I/O MODULE RACK 8 CHANNEL | VARIOFACE, UMK | DIN Rail | - | 8 | 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.