Overview
Allen Bradley 1794-OA8 Flex I/O AC Digital Output Module is a Flex I/O AC digital output module designed for controlling industrial AC field devices such as contactors, relays, and actuators. It is used in distributed automation systems requiring reliable and isolated output switching within PLC-based control architectures.
General Information
Part Number: 1794-OA8
Manufacturer: Rockwell Automation
Brand: Allen-Bradley
Country of Origin: USA
Series: Flex I/O (1794 Series)
Module Type: AC Digital Output Module
Output Type: 8-channel AC output
Installation: DIN rail mounted via Flex I/O terminal base
Function: Industrial AC load switching and control
Power Specifications
Supply Voltage: 120/240 V AC (output side, application dependent)
Control Voltage: 24 V DC (backplane logic supply)
Power Consumption: 3–5 W typical
Input Power Source: Backplane-powered logic system
Isolation: Channel-to-backplane isolation
Protection: Surge and transient suppression
Status Indicators: LED output status and module diagnostics
Communication & Interface
Backplane Communication: Flex I/O distributed I/O system
Compatible Networks: EtherNet/IP, ControlNet, DeviceNet (via adapters)
Configuration Platform: Studio 5000 / RSLogix
Signal Control: Digital ON/OFF output switching
Diagnostics: Load detection and channel fault monitoring
System Integration: Modular PLC-based distributed control architecture
Environmental
Operating Temperature: -20 to +60 °C
Storage Temperature: -40 to +85 °C
Humidity: 5% to 95% non-condensing
Vibration Resistance: Industrial IEC standard compliant
Protection Rating: IP20
Pollution Degree: 2
Dimensions & Weight
Dimensions: 94 × 46 × 53 mm
Weight: 0.109 kg
Efficient and reliable output control for modern industrial automation systems.