Allen Bradley 1794-OA8I Flex I/O Digital Output Module

Product Description

The Allen-Bradley 1794-OA8I FLEX I/O digital output module delivers reliable, isolated AC output control for industrial automation systems. Designed for mid-to-large-scale applications, this module ensures safe and efficient operation of machinery, process equipment, and distributed control systems. Its compact design allows flexible installation on DIN rails or panels, seamlessly integrating with ControlLogix, CompactLogix, and other Allen-Bradley controllers. Moreover, the module’s isolation per output channel reduces the risk of electrical interference, enhancing system reliability in noisy industrial environments.

Engineered for versatility, the 1794-OA8I supports a wide range of AC loads, offering dependable performance over long-term operations. In addition, it complies with international industrial standards, making it suitable for global deployments. This module is an ideal choice for engineers seeking robust, scalable, and maintainable solutions in automated manufacturing or process control applications.

Key Features and Functional Highlights

• Eight Isolated AC Outputs: Each channel provides independent, electrically isolated control for enhanced system safety.

• Flexible Integration: Compatible with FLEX I/O adapters for seamless connection to ControlLogix, CompactLogix, and other networks.

• Compact and Modular Design: Easy installation on DIN rails or panels in distributed I/O systems.

• Wide Operating Voltage Range: Supports 85–265 V AC, accommodating diverse industrial loads.

• Reliability and Compliance: Certified insulation withstands 500 V AC for 60 seconds; CE marked and globally approved.

• Scalability: Modular architecture allows easy expansion of distributed control systems.

• Low Power Consumption: Draws only 80 mA @ 5 V DC on the backplane while dissipating minimal heat.

Technical Specifications

Typical Applications

• Distributed control systems in manufacturing plants and process automation

• AC-powered machinery and motor control in industrial facilities

• Factory automation requiring isolated, high-reliability digital outputs

• Integration with ControlLogix and CompactLogix PLCs for advanced monitoring

FAQ

Q1: Can the 1794-OA8I module handle high-current AC loads?
A1: Yes, each output supports up to 4 A at nominal 120 V AC, suitable for most industrial devices.

Q2: Is the module compatible with CompactLogix controllers?
A2: Absolutely, the 1794-OA8I works seamlessly with FLEX I/O adapters for CompactLogix and ControlLogix networks.

Q3: How does the isolation improve system safety?
A3: Each output is electrically isolated to prevent cross-channel interference and protect sensitive equipment.

Q4: What is the expected lifecycle of this module?
A4: Designed as a mature product, the 1794-OA8I offers long-term reliability with available replacement options.

Q5: Can it be installed in hazardous environments?
A5: It has North American hazardous location approvals; always check full documentation for specifics.