The Allen-Bradley / Rockwell Automation 1771-A1B I/O Chassis is for the 1771- I/O modules. 1771A1B houses 4 slots. Approximate dimensions are 315 x 229 x 193mm (12.4 x 9.0 x 7.6in.). Approximate weight is 3.6 kg (8.0lbs). The I/O Chassis mounting type is a back-panel mount.
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