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The Allen-Bradley 1747-L20R is a compact yet powerful processor module with an instructional capacity of 1,024 (1K), featuring a built-in power supply and a fixed I/O configuration. Designed to withstand operational extremes with an operating temperature range of 0-60 °C and storage capabilities from -40 to 85 °C, it also handles relative humidity levels from 5-95% without condensation, making it suitable for diverse environments. This module supports inputs of 240V AC and outputs via AC/DC Relay, and operates efficiently with a typical scan time of 8 milliseconds per 1K instruction and a bit execution of 4 milliseconds, requiring a maximum power draw of 50 VA.