| Image | Part Number | Manufacturer | Description | Series | Mounting Type | Style | Number of Channels | Connector Type |
|---|---|---|---|---|---|---|---|---|
| PB-16SM-B | Crydom | I/O MODULE RACK 16 CHANNEL | PB | Standoffs | Mini | 16 | Card Edge, Screw Terminal Blocks | |
| 2973038 | Phoenix Contact | I/O MODULE RACK 16 CHANNEL | VARIOFACE, UMK | DIN Rail | - | 16 | Screw Terminal Blocks | |
| 2979469 | Phoenix Contact | I/O MODULE RACK 8 CHANNEL | VARIOFACE, UMK | DIN Rail | - | 8 | Header, Screw Terminal Blocks | |
| 2972945 | Phoenix Contact | I/O MODULE RACK CHANNEL | - | - | - | - | - | |
| 2IOM4A | Agastat Relays / TE Connectivity | I/O MODULE RACK 4 CHANNEL | 2IO | Standoffs | Mini | 4 | Screw Terminal Blocks | |
| PB-16C4 | Crydom | I/O MODULE RACK 16 CHANNEL | PB | Standoffs | C4 | 16 | Header, Screw Terminal Blocks | |
| 70RCK16-HL | Grayhill, Inc. | I/O MODULE RACK 16 CHANNEL | System 50 | Standoffs | Standard | 16 | Header, Screw Terminal Blocks | |
| PB-8 | Crydom | I/O MODULE RACK 8 CHANNEL | PB | Standoffs | Standard | 8 | Card Edge, Screw Terminal Blocks | |
| PB-16SM | Crydom | I/O MODULE RACK 16 CHANNEL | PB | Standoffs | Mini | 16 | Card Edge, Screw Terminal Blocks | |
| 70RCK24-HL | Grayhill, Inc. | I/O MODULE RACK 24 CHANNEL | System 50 | Standoffs | Standard | 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.