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The Allen-Bradley 1771-OAD is a discrete AC output module designed for PLC5 systems, operating within a voltage range of 10 to 138 Volts AC and a frequency of 47 to 63 Hertz. This module utilizes zero-crossing technology to mitigate inrush currents, enhancing the longevity of connected components. It features sixteen output channels, supports a current rating of 2 Amps, and incorporates LED indicators for straightforward troubleshooting. The module requires a 295 mA backplane current, which must be cumulated with other modules requirements to prevent overloading. Compatible with selected Allen-Bradley chassis, this module excludes certain chassis models like the 1771-A1, 1771-A2, and 1771-A4 and is paired with wiring arm part number 1771-WH for efficient installation and module replacement.