
Allen-Bradley 1794-OV16 Flex I/O Digital Sinking Output Module
Product Summary
The 1794-OV16 module delivers 16 sinking digital outputs for your Flex I/O system. This unit controls 24V DC loads with a 500mA current per channel. It allows hot-swapping to reduce downtime. You can mount this open-style module on a DIN rail easily. Its IP20 rating protects against solid objects.
Product Procurement & Buyer Guide
Why Choose the 1794-OV16 for Your System?
The 1794-OV16 provides a robust solution for controlling DC actuators and indicators. It handles up to 8.0 Amps total across all 16 channels. This module uses a sinking output configuration for standard industrial loads. You can insert or remove it under power without shutting down the system. This feature eliminates costly production restarts and saves valuable time.

Matching the Module to Your Application
You must verify your field device compatibility before purchase. This module operates with a nominal 24V DC on-state voltage. It accepts a wide range from 10 to 31.2 Volts DC. Each channel can sink a maximum of 500 milliamps continuously. Ensure your total load does not exceed the 8.0 Amp module rating. The off-state leakage current is a minimal 0.5 milliamps maximum.
Understanding Your Power Supply Needs
The 1794-OV16 requires an external power supply for its outputs. This supply must deliver 10 to 31.2 Volts DC. You should also account for a 5% AC ripple on the supply line. The module itself draws 80mA from the FlexBus backplane. Its maximum power dissipation is 4.2 Watts at the top voltage range. Plan for 14.3 BTU/hr of thermal dissipation in your panel.
Selecting the Correct Terminal Base Unit

You need a compatible terminal base to install the 1794-OV16. The recommended bases are the 1794-TB3 and the 1794-TB3S. These bases provide the physical connection for the module. They also offer screw-clamp terminals for secure field wiring. The 1794-TB3 supports daisy-chaining power to adjacent modules. This simplifies your panel layout and reduces wiring complexity.
Communication Network Options
The 1794-OV16 works with several common industrial networks. You can use ControlNet, DeviceNet, or EtherNet/IP protocols. It also supports Universal Remote I/O for legacy systems. Your choice of network adapter determines the communication method. This flexibility allows integration into almost any control architecture. It ensures your investment works with future system upgrades.
Operating Environment and Durability

This module operates reliably in temperatures from 0 to 55 degrees Celsius. It can handle noncondensing humidity levels from 5 to 95 percent. For extreme environments, you can order XT versions of this module. These versions reduce panel and maintenance costs in harsh conditions. The module provides 16 yellow LED indicators for each channel. These lights give you immediate visual feedback on output status.
Logistics & Standard Packaging Details
- One (1) Allen-Bradley 1794-OV16 Flex I/O Digital Output Module
- The module is an open-style unit without a terminal base.
- Standard anti-static packaging protects the unit during transit.
- We offer express delivery via FedEx, UPS, and DHL.
- Contact our sales team for bulk order shipping rates.