Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 1794-OM16 |
| Manufacturer | Allen-Bradley (Rockwell Automation) |
| Product Type | Digital AC Output Module |
| Product Family | FLEX I/O (1794) |
| Number of Outputs | 16 |
| Output Voltage | 220/240V AC |
| Output Current per Channel | 4 A |
| Power Supply | 240V AC |
| Terminal Type | Screw connection |
| Mounting | DIN rail |
| Protection Rating | IP20 |
| Width | 94 mm |
| Height | 94 mm |
| Depth | 91 mm |
| Operating Temperature | 0…55 °C (32…131 °F) |
| Short-Circuit Protection | Not available |
| Signal Change Delay | 40 ms |
| Lifecycle Status | End of Life (discontinued Oct 31, 2026) |
Main Features and Advantages
High-density AC output control: The 1794-OM16 packs 16 output channels into a single 94mm-wide module, enabling compact panel layouts for applications requiring numerous AC actuated devices. Each channel handles up to 4 Amps, providing sufficient capacity for direct control of pilot duty solenoids, small contactors, and indicating lamps without intermediate relays. The 240V AC output voltage matches common industrial control voltages, simplifying integration with existing AC control circuits .
RIUP maintenance capability: Removal and Insertion Under Power allows the 1794-OM16 to be replaced while the FLEX I/O system remains operational. For processes where shutdowns are costly, this feature enables maintenance personnel to swap a failed module without interrupting field power or stopping the controlled process. The removable terminal base design further supports this by allowing field wiring to remain undisturbed during module replacement, reducing the risk of wiring errors during urgent maintenance .
Flexible mounting and wiring: The 1794-OM16 mounts to standard DIN rail and uses screw-clamp terminals for secure field connections. The module’s dimensions of 94 × 94 × 91 mm provide a compact footprint that maximizes channel density per panel square inch. The terminal base architecture (1794-TBN or 1794-TBNF) separates field wiring from the module itself, allowing pre-wired harnesses to be prepared for rapid changeover and simplifying troubleshooting when individual channels require isolation . These features make the 1794-OM16 a practical choice for both new panel builds and retrofit applications where space is constrained.
