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The Buchanan 1771-W is a terminal connection module designed for use with Allen-Bradley 1771 I/O systems, commonly found in PLC-5 and other legacy industrial automation applications. It serves as an interface between field wiring and the 1771-series I/O modules, providing secure and organized termination points.



Key Features & Specifications
Manufacturer: Buchanan (now part of Eaton)
Compatible With:
Allen-Bradley 1771-IA (AC Input), 1771-OB (DC Output), 1771-IF (Analog Input), etc.
Used in 1771-A1B, A2B, A3B chassis systems.
Terminal Type:
Screw terminals for secure wire connections.
May include jumper bars for common connections (e.g., +V, GND).
Isolation: Some versions provide channel-to-channel isolation to prevent signal interference.
Wire Gauge: Typically supports 12-24 AWG
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