Configured for high-current discrete AC load switching within Allen-Bradley SLC 500 modular control architectures, the Allen-Bradley 1746-OAP12 1746OAP12 (1746-OAP12/C High Current 120/240V AC Output Module) provides direct physical and electrical execution for driving twelve independent 120/240 VAC actuator channels across controller chassis racks.

Part Number Breakdown & Configuration Matrix

Hardware Specifications

Backplane Bus & Network Communication Parameters

The hardware utilizes backplane bus communication velocity licences to maintain deterministic register updates across discrete AC output channels. I/O density scaling capabilities allow operators to expand high-current control arrays across backplane slots without violating bus timing constraints or update intervals. Firmware flash compatibility ensures that low-level communication protocol stacks remain synchronized with controller processors during active process execution.

Package Contents & Ordering Information

• 1 x Allen-Bradley 1746-OAP12 AC Output Module (Part Number: 1746OAP12)
• 1 x Removable Terminal Block (RTB) Connector Assembly
• 1 x Technical Compliance Documentation Leaflet

Field Installation & Wiring Guidelines

• Ensure chassis backplane power is completely isolated before inserting or extracting the AC output module.
• Mount the module into any available I/O slot within the SLC 500 chassis, confirming proper alignment with guide rails.
• Connect field load wiring to the removable terminal block, maintaining appropriate wire sizing for high-current AC circuits.
• Route AC output cables away from low-voltage analog signal lines and communication data buses to prevent electromagnetic interference.

Frequently Asked Questions

• Q: What is the primary operational function of this module within the control system?
• A: It switches high-current 120/240 VAC signals from controller logic commands to drive external heavy-duty industrial loads.
• Q: How many output channels does the hardware support simultaneously?
• A: The module features twelve independent discrete AC output channels.
• Q: What operating voltage range is accepted by the output circuitry?
• A: The channels operate across a voltage range from 85 VAC to 264 VAC.
• Q: How much current does the unit draw from the controller backplane?
• A: The module draws 0.370 A from the 5.1 VDC backplane power supply.
• Q: What is the specified operating temperature range for the hardware?
• A: The module functions reliably within an ambient operating temperature range of 0 deg C to +60 deg C.
• Q: Does this module support live insertion and removal (hot-swapping)?
• A: No, power to the chassis must be turned off prior to installing or removing the unit from the backplane.
• Q: Why is physical separation required between AC output and signal wiring?
• A: Separation prevents high-voltage AC inductive switching transients from corrupting low-voltage control or communication networks.
• Q: What maintenance procedures are recommended for this hardware?
• A: Regularly inspect terminal block connection torque and verify that cabinet ventilation paths remain clear of obstructions.