Omron CJ1W-OC211 Relay Output Unit
The Omron CJ1W-OC211 is a 16-point Relay Contact Output Unit designed for switching AC and DC loads in industrial automation systems. Operating on the CJ I/O Bus, this module provides 16 normally open relay outputs with a rated switching capacity of 250 VAC or 24 VDC at 2 A. Its relay-based output design enables electrical isolation between control and load circuits, supporting reliable operation in mixed-voltage environments. Manufactured by Omron, the CJ1W-OC211 is part of the Omron PLC I/O platform, supporting modular expansion and standardized panel wiring.

| Brand | Omron |
| Product | PLC |
| Model Number | CJ1W-OC211 |
Omron CJ1W-OC211 16-Point Relay Contact Output Unit â Technical Overview
| Specification | Value |
|---|---|
| I/O System | CJ I/O Bus |
| Module Type | Digital Output Unit |
| Number of Outputs | 16 digital outputs |
| Output type | Relay NO |
| Output Voltage | 5 to 250 VAC / 24 VDC |
| Output Current | 2 A |
| I/O Connection Type | Screw terminals |
The Omron CJ1W-OC211 is widely recognized as an Omron 16-channel relay contact output unit built for dependable load switching in PLC-based control systems. With normally open relay outputs rated up to 2 A, the module supports direct control of solenoid valves, contactors, indicator lamps, and other field devices requiring electrical isolation.
In industrial automation panels, the CJ1W-OC211 is commonly applied in material handling systems, packaging machines, and general-purpose control cabinets where flexible AC and DC load switching is required. Its screw terminal wiring simplifies installation and maintenance, while relay contacts allow compatibility with a wide range of voltage levels.
As part of the CJ1 Basic I/O Units platform, the CJ1W-OC211 is engineered for long-term industrial operation with consistent electrical performance and predictable PLC memory allocation. This relay output unit supports stable switching behavior and continuous operation in demanding automation environments requiring reliable digital output control.