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The Allen-Bradley 1771-PSC is a versatile power supply chassis designed to accommodate up to four modular power supplies, making it an ideal solution for expanding power capabilities in a 1771 universal I/O chassis. It efficiently connects power through cables to the I/O chassis and supports communication modules needing +5V DC and processor-enabled signals. With backplane mounting capability, it delivers a robust maximum backplane current of 24 amps, ensuring reliable performance within operating temperatures of 32 to 140°F and stable storage conditions ranging from -40 to 185°F, all while maintaining a compact form with dimensions of 311 x 203 x 180 mm and a weight of approximately 1.9 kg.