
Allen-Bradley 1746-OAP12 SLC 500 AC Output Module
Product Summary
The Allen-Bradley 1746-OAP12 SLC 500 discrete AC output module drives up to twelve loads. It provides 120/240VAC signals across six channels per common terminal. This module includes a jumper for fuse monitoring and a removable terminal block.
Theme Option A: Product Procurement & Buyer Guide
Why the 1746-OAP12 Solves Your Control Needs
This module delivers robust switching for high-current AC applications. It controls motors, valves, and solenoids within a single SLC 500 chassis. The 1746-OAP12 offers twelve output points for dense I/O requirements.
Procurement managers value its reliable electronic fuses. Each common group of six outputs has an independent fuse. This design allows one group to operate even if the other group’s fuse blows.
Application engineers benefit from the wide voltage range. The module accepts 85 to 265V AC at 47 to 63 Hz. This flexibility simplifies integration into global power systems.

The module provides a high continuous current per point. It delivers 2.0 A at 30 °C and 1.0 A at 60 °C. This capacity handles demanding loads without derating issues.
Key Specifications for Your Selection
The output signal delay is critical for timing loops. The module turns on in 1 ms and turns off in 11 ms. This fast response ensures precise actuator control.
The maximum leakage current in the OFF state is only 2 mA. This low leakage prevents false triggering of sensitive loads. It ensures safe operation for your equipment.
The backplane current draw is 370 mA at 5.1 Volts. This low power consumption reduces strain on the chassis power supply. It allows for more modules in your system.
The module handles surge currents effectively. Each point can handle 17 A for 25 ms. This capability protects against inrush currents from motors.

Installation and Compatibility Details
The 1746-OAP12 fits any slot in a 1746 chassis. It connects via a Removable Terminal Block (RTB) for easy wiring. This design speeds up installation and replacement.
The module works with all SLC 500 processors. When using SLC 5/02 or later, you cannot clear the major fault bit with a fault routine. The major fault bit is S:1/13 with code in S:6.
Fuse Monitoring and Replacement Guide
You can enable fuse monitoring by changing the jumper. Set the jumper to short pins 2 and 3 for active monitoring. The default setting on pins 2 and 1 disables this feature.
Use the correct replacement fuse for blown fuses. The SAN-O HQ 6.3A fuse maintains UL/CSA ratings. Order the 1746-F9 kit for five replacement fuses.

Environmental and Mechanical Tolerances
The module operates from 0 to 60 °C with 5-95% humidity. It withstands 30G operational shock and 5G vibration at 10-500 Hz. These ratings ensure reliable performance in harsh factory floors.
The total module heat dissipation is 10.85 W. Each point dissipates a maximum of 1 AW. Proper ventilation in the enclosure prevents overheating.
Logistics & Standard Packaging Details
- One Allen-Bradley 1746-OAP12 SLC 500 AC Output Module
- One Removable Terminal Block (RTB)
- One jumper for fuse monitoring configuration
- Product documentation and installation guide
We ship all orders via express delivery services. We use FedEx, UPS, and DHL for fast and reliable shipping. Contact us for specific delivery timelines.