{"product_id":"allen-bradley-1794-im8-flex-i-o-module","title":"Allen-Bradley 1794-IM8 FLEX I\/O Module","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1794-IM8\u003c\/strong\u003e serves as the primary \u003cstrong\u003e1794-IM8\u003c\/strong\u003e Discrete Input Module utilized to execute 240 VAC field signal monitoring across Allen-Bradley FLEX I\/O network platforms.\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\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\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\u003e1794-IM8\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\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.07 lbs (0.032 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard FLEX I\/O Single-Slot Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 55 deg C (32 to 131 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePassive Input Circuitry \/ Backplane Powered\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Inputs\u003c\/td\u003e\n\u003ctd\u003e8 Point Discrete Inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd\u003e240 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Rating\u003c\/td\u003e\n\u003ctd\u003eOpen Style (IP20)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003eDIN Rail via Terminal Base Assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eHigh-Voltage Signal Isolation \u0026amp; Backplane Bus Integration\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1794-IM8\u003c\/strong\u003e incorporates 8 discrete input channels rated for 240 VAC operation, converting high-voltage field contact signals into deterministic logic states for processing across the FLEX I\/O backplane bus. Designed for high-density I\/O configurations, the module interfaces through a terminal base unit, eliminating the need to disconnect field wiring during module replacement. Built-in optocouplers deliver galvanic isolation between the high-voltage 240 VAC field inputs and low-voltage backplane logic circuits, protecting network adapters from electrical transients and common-mode voltage spikes.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the 1794-IM8 input module be replaced without turning off system power?\u003c\/p\u003e\n\u003cp\u003eA: Yes. When mounted on a compatible 1794 terminal base unit, the 1794-IM8 supports Removal and Insertion Under Power (RIUP), allowing field module swapping while backplane communication to remaining I\/O modules stays active.\u003c\/p\u003e\n\u003cp\u003eQ: What terminal base units are compatible with the 1794-IM8 discrete input module?\u003c\/p\u003e\n\u003cp\u003eA: The 1794-IM8 interfaces with 2-wire or 3-wire 1794 terminal bases, such as the 1794-TB2, 1794-TB3, or 1794-TB3S screw and spring-clamp terminal base assemblies.\u003c\/p\u003e\n\u003cp\u003eQ: What is the IP rating for the 1794-IM8 module casing?\u003c\/p\u003e\n\u003cp\u003eA: The module carries an IP20 open-style enclosure rating and must be installed inside an industrial enclosure providing appropriate protection against environmental contaminants and dust.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eMount the selected 1794 terminal base assembly firmly onto a grounded 35 mm DIN rail.\u003c\/li\u003e\n\u003cli\u003eTurn the module keyswitch on the terminal base to position 8 to match the 1794-IM8 pinout requirements.\u003c\/li\u003e\n\u003cli\u003eWire the 240 VAC field inputs into the designated terminal base screw terminals, ensuring proper phase and neutral line alignment.\u003c\/li\u003e\n\u003cli\u003eAlign the 1794-IM8 module rear connector with the terminal base socket and press firmly until the locking mechanism latches.\u003c\/li\u003e\n\u003cli\u003eVerify that all AC power field wiring is safely enclosed before energizing the 240 VAC input supply.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":48749914226878,"sku":"1794-IM8","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/1794-IM8_20.png?v=1787018228","url":"https:\/\/www.autooiltech.com\/products\/allen-bradley-1794-im8-flex-i-o-module","provider":"AutoOilTech Limited","version":"1.0","type":"link"}