Allen Bradley SLC500 Output Module 1746-OA8 /B

Allen-Bradley SLC500 Output Module 1746-OA8 /B

The Allen-Bradley 1746-OA8 is an AC output module designed for the SLC 500 programmable controller platform. This module provides eight output channels, facilitating the control of various AC-powered devices within industrial automation systems.

Key Features

• Output Channels: 8
• Operating Voltage Range: 85 to 265V AC at 47 to 63 Hz
• Nominal Output Voltages: 120V AC and 240V AC
• Continuous Output Current per Channel: 1.0 A at 30°C (86°F); 0.5 A at 60°C (140°F)
• Maximum Continuous Output Current per Module: 8.0 A at 30°C (86°F); 4.0 A at 60°C (140°F)
• Backplane Current Draw: 185 mA at 5V DC
• ON State Voltage Drop: 1.50V at 1.0 A
• Minimum Load Current: 10 mA
• OFF State Leakage Current: Maximum of 2 mA
• Surge Current per Point: 10 A for 25 ms
• Signal ON Delay: 1 ms for resistive loads
• Signal OFF Delay: 11 ms for resistive loads

Installation and Compatibility

The 1746-OA8 module occupies a single slot in the 1746 chassis and can be installed in any available slot except the first one, which is reserved for the SLC 500 processor. It is important to note that this module does not support Removal and Insertion Under Power (RIUP); therefore, power must be turned off during installation or removal.

Environmental Specifications

• Operating Temperature: 0 to 60°C (32 to 140°F)
• Storage Temperature: -40 to 85°C (-40 to 185°F)
• Relative Humidity: 5% to 95% non-condensing
• Vibration Resistance: 2.5G at 57 to 2000 Hz
• Shock Resistance: 30G

The 1746-OA8 module is designed to meet NEMA standard ICS 2-230 for noise immunity and is UL and CSA certified, ensuring reliable performance in industrial environments.