Overview
The Allen-Bradley 1746-OA8 is a discrete AC output module designed for the SLC 500 series of programmable logic controllers. This module is an SLC 500 AC output module that energizes electrical loads across industrial automation systems. The module has eight (8) output channels in two (2) groups of four (4) channels each, providing flexible load distribution and wiring options.
Key Features
- Eight output channels organized in two groups of four
- Output voltage range of 85–264VAC with frequency of 47–63 Hz
- Each channel delivers continuous output current of 1.0 A @ 30°C or 0.50 A @ 60°C, with maximum continuous output current per module of 8.0 A @ 30°C and 4.0 A @ 60°C
- LED indicators provide visual status for each output channel
- Single-slot installation in 1746 chassis
1500V AC isolation between field and logic sides for enhanced safety
Technical Specifications
The 1746-OA8 meets industrial durability and safety requirements with robust design and proven performance in harsh environments.
Typical Applications
The Allen-Bradley 1746-OA8 is widely used for:
- Motor starter and contactor control in industrial drive systems
- Indicator light and alarm signal outputs
- Solenoid and pilot-operated valve switching
- General-purpose AC load switching in automation and motion control
- Legacy SLC 500 system upgrades and maintenance
Compatibility & Replacements
Compatible With
- SLC 500 Modular chassis (1746-A2, 1746-A4, 1746-A10, 1746-A13)
- SLC 500 fixed and modular processors
- RSLogix 500 programming environment
- Standard 120/240VAC industrial control circuits
- 1500V AC isolated field wiring
Replaces / Drop-In Replacement For
The 1746-OA8 Series A is a direct replacement for earlier revisions of the same model number in legacy SLC 500 systems. Verify compatibility with your system integrator before ordering if replacing modules from significantly older installations.
Works With
- RSLogix 500 programming software
- Allen-Bradley PanelView and operator interfaces
- Standard AC load switching and control protocols
- SLC 500 modular I/O configuration tools
