Overview
The Allen-Bradley 1746-OA16 is a discrete AC output module designed for the SLC 500 control platform. This 16-point output module provides general-purpose 120/240VAC digital outputs with flexible operating parameters, making it suitable for material handling, HVAC control, assembly operations, process control, and SCADA applications. The module integrates directly into any SLC 500 chassis and works with all fixed and modular SLC 500 processors.
Key Features
- 16 AC output channels organized in two groups of 8 outputs each
- 120/240VAC nominal output with 85-265VAC operating range at 47-63 Hz frequency
- TRIAC-based output switching for reliable AC load control
- Optical coupling and filter circuitry for noise reduction
- LED status indicators for real-time output monitoring
- Removable screw-clamp terminal blocks for quick wire connections without power shutdown
- Compatible with SLC 500, CompactLogix, and ControlLogix architectures
Technical Specifications
- Output Voltage: 120/240VAC nominal; 85-265VAC operating range
- Number of Outputs: 16 digital
- Points per Common: 8
- Frequency: 47-63 Hz
- Continuous Current per Output: 0.5 A @ 30°C (86°F); 0.25 A @ 60°C (140°F)
- Maximum Continuous Current per Output: 8.0 A @ 30°C; 4.0 A @ 60°C
- Backplane Current Consumption: 0.370 A @ 5VDC
- Signal Delay: 1 ms ON; 11 ms OFF (maximum, resistive load)
- Off-State Leakage: 2 mA maximum
- Minimum Load Current: 10 mA per output
- Maximum Surge Current: 10.0 A per point for 25 ms
- Operating Temperature: 0°C to 60°C (32°F to 140°F)
- Relative Humidity: 5% to 95% non-condensing
- Mounting Style: Rack-mount chassis (single slot)
- Terminal Style: Screw-clamp (removable terminal blocks)
- Weight: 0.60 lbs
- I/O Memory: 16-bit per module
Typical Applications
The 1746-OA16 is widely deployed in:
- Material handling and conveyor systems
- HVAC and climate control systems
- High-speed assembly and production lines
- Small to medium process control systems
- Simple motion control circuits
- SCADA and remote monitoring solutions
- General industrial discrete output requirements
Compatibility & Replacements
Compatible With
- SLC 500 modular and fixed-form programmable controllers
- CompactLogix programmable automation controllers (PAC)
- ControlLogix PAC systems (as remote I/O module)
- Bulletin 1746 chassis and backplanes
- Studio 5000 engineering environment (legacy SLC mode)
- Ladder Logic programming via SLC 500 processors
- All SLC 500 CPU models (1747-L511, 1747-L512, 1747-L521, 1747-L531, 1747-L532, etc.)
Replaces / Drop-In Replacement For
- 1746-OA16 Series A, B, D, E, F (all revisions)
- Functionally equivalent to other 16-point AC output modules in the SLC 500 line
- Direct replacement when upgrading or repairing legacy SLC 500 systems
Works With
- RSLogix 500 (legacy SLC 500 programming software)
- Studio 5000 (with SLC 500 backwards compatibility mode)
- EtherNet/IP network adapters for remote I/O
- 1746 series I/O modules (input, output, and analog cards)
- 1746-P7 and 1746-P4 AC power supplies
- 1746-NT8 and 1746-A8 chassis accessories
- Module-ready cables and field wiring systems
