{"product_id":"allen-bradley-1771-wd-plc-5-field-wiring-arm","title":"Allen-Bradley 1771-WD PLC-5 Field Wiring Arm","description":"\u003ch2\u003eAllen-Bradley 1771-WD PLC-5 Field Wiring Arm\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1771-WD\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1771-WD\u003c\/strong\u003e Wiring Arm, operates as a dedicated hardware component for field signal termination and module connection management within PLC-5 and 1771 I\/O chassis platforms. The wiring arm provides pivoting terminal access for digital I\/O modules without requiring complete field wire removal.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1771-WD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.15 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eWiring Arms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Line\u003c\/td\u003e\n\u003ctd\u003ePLC-5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eField Wiring Arm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Count\u003c\/td\u003e\n\u003ctd\u003e12 terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum I\/O Capacity\u003c\/td\u003e\n\u003ctd\u003e8 I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Plating\u003c\/td\u003e\n\u003ctd\u003eTin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScrew Torque\u003c\/td\u003e\n\u003ctd\u003e7-9 lb*in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoating\u003c\/td\u003e\n\u003ctd\u003eConformal coat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical Application\u003c\/td\u003e\n\u003ctd\u003eGeneral purpose 6-isolated-I\/O modules 120 VAC\/DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Method\u003c\/td\u003e\n\u003ctd\u003ePivot bar attachment on 1771 I\/O chassis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiring Compatibility\u003c\/td\u003e\n\u003ctd\u003e1771-WN field wiring accessories\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003ePLC-5 I\/O Connection and Hardware Interface Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe 1771-WD provides a mechanical and electrical termination interface between field wiring and compatible 1771 digital I\/O modules. The pivoting design allows the wiring arm to swing upward for module insertion or removal while maintaining connected field conductors.\u003c\/p\u003e\n\u003cp\u003eThe component supports PLC-5 I\/O density scaling by allowing multiple field wiring configurations across 1771 chassis modules. Tin-plated contacts provide the electrical interface between terminal connections and the installed I\/O module.\u003c\/p\u003e\n\u003cp\u003eThe wiring arm requires no external power source and functions as a passive connection accessory. Its conformal coating supports installation in industrial control cabinets where protection of exposed circuit surfaces is required.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 1771-WD require an external power supply?\u003cbr\u003eA: No. The 1771-WD is a passive wiring accessory and does not require external power.\u003c\/p\u003e\n\u003cp\u003eQ: How many field terminals are available on the 1771-WD?\u003cbr\u003eA: The wiring arm provides 12 terminal connections.\u003c\/p\u003e\n\u003cp\u003eQ: Can the 1771-WD be removed with field wiring connected?\u003cbr\u003eA: The pivoting design allows the connected wiring arm to move with the module interface, reducing the need to disconnect field conductors during module service operations.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1771-WD by attaching it to the pivot bar at the bottom of a compatible 1771 I\/O chassis. Verify that the wiring arm is correctly aligned with the installed I\/O module before tightening terminal connections.\u003c\/p\u003e\n\u003cp\u003eRoute field wiring according to standard industrial cabinet practices and maintain separation between low-level signal conductors and high-current power wiring. Ensure terminal screws are tightened using the specified torque range.\u003c\/p\u003e\n\u003cp\u003eInspect contact surfaces and terminal connections during installation. Confirm that the wiring arm is fully seated before placing the I\/O module into operational service.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43701595471962,"sku":"1771-WD","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1771-WD2.jpg?v=1784702110","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1771-wd-plc-5-field-wiring-arm","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}