| Image | Part Number | Manufacturer | Description | Series | Mounting Type | Style | Number of Channels | Connector Type |
|---|---|---|---|---|---|---|---|---|
| 2970882 | Phoenix Contact | I/O MODULE RACK 4 CHANNEL | VARIOFACE, UMK | DIN Rail | - | 4 | Screw Terminal Blocks | |
| PB-24SM-BC | Crydom | I/O MODULE RACK 24 CHANNEL | PB | Standoffs | Mini | 24 | Header, Screw Terminal Blocks | |
| 2972916 | Phoenix Contact | I/O MODULE RACK 8 CHANNEL | VARIOFACE, UMK | DIN Rail | - | 8 | Screw Terminal Blocks | |
| 5602114 | Phoenix Contact | I/O MODULE RACK CHANNEL | - | - | - | - | - | |
| 70GRCK16I | Grayhill, Inc. | I/O MODULE RACK 16 CHANNEL | System 50 | Standoffs | G5 | 16 | Screw Terminal Blocks | |
| 2972987 | Phoenix Contact | I/O MODULE RACK CHANNEL | - | - | - | - | - | |
| 2IO4A | Agastat Relays / TE Connectivity | I/O MODULE RACK 4 CHANNEL | 2IO | Standoffs | Standard | 4 | Screw Terminal Blocks | |
| RT1-OD16-24V-S(UL) | Panasonic | I/O MODULE RACK CHANNEL | - | - | - | - | - | |
| PB-24M | Crydom | I/O MODULE RACK 24 CHANNEL | PB | Standoffs | Mini | 24 | Card Edge, Screw Terminal Blocks | |
| MS-16H | Crydom | I/O MODULE RACK 16 CHANNEL | MS | Standoffs | Mini | 16 | Card Edge, 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.