{"product_id":"allen-bradley-1771-wi-plc-5-thermocouple-wiring-arm","title":"Allen-Bradley 1771-WI PLC-5 Thermocouple Wiring Arm","description":"\u003ch3\u003e\u003cstrong\u003eProduct Description\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1771-WI\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eterminal wiring arm from\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003eAllen-Bradley\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eis a field wiring accessory developed for Bulletin 1771 and PLC-5 I\/O systems. This component provides a secure connection interface between field instrumentation and compatible PLC input modules, particularly in thermocouple signal applications.\u003c\/p\u003e\n\u003cp\u003eDesigned with 18 terminal connections and support for up to 8 I\/O channels, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1771-WI\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esimplifies installation and maintenance within rack-mounted PLC systems. Gold-plated contacts improve signal integrity and minimize connection resistance, making the unit suitable for low-level analog and temperature measurement signals.\u003c\/p\u003e\n\u003cp\u003eThe wiring arm features conformal-coated construction for additional protection against moisture, dust, and corrosive industrial environments. It does not require an independent power source and installs directly onto compatible 1771 series modules.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e1771-WI\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Family\u003c\/td\u003e\n\u003ctd\u003ePLC-5 \/ Bulletin 1771\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eWiring Arm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Supported I\/O\u003c\/td\u003e\n\u003ctd\u003e8 channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Count\u003c\/td\u003e\n\u003ctd\u003e18 terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical Application\u003c\/td\u003e\n\u003ctd\u003eThermocouple input wiring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Material\u003c\/td\u003e\n\u003ctd\u003eGold-plated contacts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Screw Torque\u003c\/td\u003e\n\u003ctd\u003e7–9 lb-in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtective Coating\u003c\/td\u003e\n\u003ctd\u003eConformal coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Power Requirement\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical AC OFF Delay\u003c\/td\u003e\n\u003ctd\u003e29 ms ±8 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical DC OFF Delay\u003c\/td\u003e\n\u003ctd\u003e30 ms ±7 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Wiring Configuration\u003c\/td\u003e\n\u003ctd\u003e1771-WN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation Type\u003c\/td\u003e\n\u003ctd\u003eRack-mounted module interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.14 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eDesign Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1771-WI\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewiring arm is intended for dependable signal termination in PLC-5 control systems where stable analog or thermocouple connections are required.\u003c\/p\u003e\n\u003cp\u003ePrimary features include:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e18-point terminal connection layout\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupport for up to 8 I\/O signal channels\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOptimized for thermocouple signal applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eGold-plated terminal contacts for improved conductivity\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eConformal coating for environmental durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDirect integration with Bulletin 1771 modules\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNo separate field power supply required\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSimplified module replacement and maintenance access\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTypical Applications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1771-WI\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis commonly installed in industrial environments involving temperature monitoring and low-level analog signal interfacing.\u003c\/p\u003e\n\u003cp\u003eCommon application examples include:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eThermocouple input systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProcess temperature monitoring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePLC-5 analog I\/O installations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIndustrial furnace controls\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHeat treatment systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProcess automation panels\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eManufacturing temperature supervision\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRetrofit PLC maintenance projects\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch4\u003e\u003cstrong\u003eWhat is the primary use of the 1771-WI wiring arm?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1771-WI\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis mainly used for thermocouple and low-level signal wiring in PLC-5 and Bulletin 1771 systems.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eDoes the wiring arm require an external power source?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eNo. The unit operates without a dedicated external power supply.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eHow many terminals are included?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe wiring arm provides 18 field wiring terminals supporting up to 8 I\/O channels.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eWhy are gold-plated contacts used?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eGold-plated contacts help reduce signal degradation and improve reliability in sensitive analog and thermocouple applications.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43344751198298,"sku":"1771-WI","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1771-WI2.jpg?v=1778465713","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1771-wi-plc-5-thermocouple-wiring-arm","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}