{"product_id":"allen-bradley-1746-ib8-slc-500-digital-input-module-8-channel-24v","title":"Allen-Bradley 1746-IB8 SLC 500 Digital Input Module 8 Channel 24V","description":"\u003ch2 style=\"color: #0056b3; font-size: 1.5em;\"\u003eAllen-Bradley 1746-IB8 SLC 500 Digital DC Input Module\u003c\/h2\u003e\n\u003cp style=\"font-size: 1.05em; line-height: 1.6;\"\u003eThe \u003cb style=\"color: #0056b3;\"\u003eAllen-Bradley 1746-IB8\u003c\/b\u003e is an SLC 500 digital DC input module featuring 8 sinking input channels rated at 24 V DC. Operating from 10-30 V DC, this module provides reliable field signal acquisition for industrial control systems. Approved for Class 1 Division 2 hazardous locations, it draws 50 mA backplane current at 5 V DC and dissipates 1.3 W. Weighing approximately 0.3 kg (0.66 lbs), it operates from 0°C to 60°C.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #0056b3; margin-top: 24px;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 0.95em;\"\u003e\n\u003cthead style=\"background-color: #f2f4f6;\"\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ccc; text-align: left;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ccc; text-align: left;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eManufacturer\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eRockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eBrand\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003ePart Number\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e1746-IB8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eSeries\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eSLC 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eModule Type\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eDigital DC Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eInputs\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e8 (Sinking)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eVoltage Range\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e10-30 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e24 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eNominal Input Current\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e8 mA @ 24 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eOff-State Current\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e1 mA max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eOff-State Voltage\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e5.0 V DC max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eSignal Delay (ON\/OFF)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e8 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eBackplane Current\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e50 mA @ 5 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e1.3 W (4.4 BTU\/hr)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eDielectric Withstand\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e1500 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e0°C to 60°C (32°F to 140°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eHumidity\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e5-95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eVibration\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e2.5G @ 57-500 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eShock\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e30G\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eApprovals\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eUL, CE, Class 1 Div 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eUPC\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e10662073521256\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3 style=\"color: #0056b3; margin-top: 24px;\"\u003eModel Number Breakdown\u003c\/h3\u003e\n\u003cul style=\"margin-left: 20px; line-height: 1.8;\"\u003e\n\u003cli\u003e\n\u003cb style=\"color: #0056b3;\"\u003e1746\u003c\/b\u003e – SLC 500 I\/O Series\u003c\/li\u003e\n\u003cli\u003e\n\u003cb style=\"color: #0056b3;\"\u003eI\u003c\/b\u003e – Input Module\u003c\/li\u003e\n\u003cli\u003e\n\u003cb style=\"color: #0056b3;\"\u003eB\u003c\/b\u003e – DC Voltage, Sinking Input\u003c\/li\u003e\n\u003cli\u003e\n\u003cb style=\"color: #0056b3;\"\u003e8\u003c\/b\u003e – 8 Input Channels\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #0056b3; margin-top: 24px;\"\u003eInstallation \u0026amp; Field Application Guide\u003c\/h3\u003e\n\u003cul style=\"margin-left: 20px; line-height: 1.8;\"\u003e\n\u003cli\u003eInstall in any available slot of the SLC 500 chassis. Ensure the power supply supports the 50 mA backplane draw.\u003c\/li\u003e\n\u003cli\u003eWire field devices to the 8 input terminals using appropriate gauge wire. Inputs are sinking type.\u003c\/li\u003e\n\u003cli\u003eVerify field voltage is between 10-30 V DC. Nominal input current is 8 mA at 24 V DC.\u003c\/li\u003e\n\u003cli\u003eFor Class 1 Division 2 installations, follow hazardous area wiring practices and use approved barriers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #0056b3; margin-top: 24px;\"\u003eWhy Choose the 1746-IB8\u003c\/h3\u003e\n\u003cul style=\"margin-left: 20px; line-height: 1.8;\"\u003e\n\u003cli\u003e8 sinking inputs provide reliable DC signal acquisition for SLC 500 systems.\u003c\/li\u003e\n\u003cli\u003eClass 1 Division 2 approval for hazardous area installations.\u003c\/li\u003e\n\u003cli\u003eLow backplane current (50 mA) minimizes power supply loading.\u003c\/li\u003e\n\u003cli\u003eProven reliability with UL, CE, and NEMA Noise Immunity certification.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #0056b3; margin-top: 24px;\"\u003eField Engineer FAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cb style=\"color: #0056b3;\"\u003eQ1:\u003c\/b\u003e What is the difference between sinking and sourcing inputs on the 1746-IB8?\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eA1:\u003c\/b\u003e The 1746-IB8 provides sinking inputs, meaning the input connects to the common (ground) to turn on. The input circuit sources current to the field device.\u003c\/p\u003e\n\u003cp\u003e\u003cb style=\"color: #0056b3;\"\u003eQ2:\u003c\/b\u003e Can the 1746-IB8 be used with 24 V AC signals?\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eA2:\u003c\/b\u003e No, this module is designed for DC input signals only. Use the 1746-IA8 for AC input applications.\u003c\/p\u003e\n\u003cp\u003e\u003cb style=\"color: #0056b3;\"\u003eQ3:\u003c\/b\u003e What is the maximum cable length for field wiring to the 1746-IB8?\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eA3:\u003c\/b\u003e Maximum recommended cable length is 305 meters (1000 feet) for reliable signal detection.\u003c\/p\u003e\n\n\u003cp style=\"margin-top: 24px;\"\u003eInquiries: \u003ca style=\"color: #0056b3; text-decoration: none; font-weight: bold;\" href=\"mailto:sale@etowonauto.com\"\u003esale@etowonauto.com\u003c\/a\u003e\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52659573686404,"sku":"1746-IB8","price":178.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/7454\/7844\/files\/1746-IB8-1.jpg?v=1787226462","url":"https:\/\/www.etowonauto.com\/nb\/products\/allen-bradley-1746-ib8-slc-500-digital-input-module-8-channel-24v","provider":"Etowon Auto","version":"1.0","type":"link"}