{"product_id":"1791-16ac-allen-bradley-block-i-o-module-16-inputs-outputs","title":"1791-16AC Allen-Bradley Block I\/O Module 16 Inputs Outputs","description":"\u003ch2\u003e\u003cstrong\u003eAllen-Bradley 1791-16AC Block I\/O Module Overview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Technical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eManufacturer: Allen-Bradley ensures reliable industrial control.\u003c\/li\u003e\n\u003cli\u003eProduct Type: 1791 Block I\/O Series with built-in Remote I\/O adapter functionality.\u003c\/li\u003e\n\u003cli\u003ePart Number: \u003cstrong\u003e1791-16AC\u003c\/strong\u003e with UPC 612598124749.\u003c\/li\u003e\n\u003cli\u003eInput Channels: Sixteen discrete 120VAC inputs with an On-state voltage range of 79 to 132VAC.\u003c\/li\u003e\n\u003cli\u003eInput Current: Nominal rating of 11 mA with a maximum On-state current of 12.3 mA at 132 Volts.\u003c\/li\u003e\n\u003cli\u003eOutput Channels: Sixteen 120VAC outputs arranged in two isolated groups of eight.\u003c\/li\u003e\n\u003cli\u003eOutput Voltage Range: Each output supports 20 to 132VAC for driving various field devices.\u003c\/li\u003e\n\u003cli\u003eExternal Power: Requires 85 to 132VAC, 47-63 Hz with a current draw of 150 mA at 132VAC.\u003c\/li\u003e\n\u003cli\u003eFrequency Response: Operates at 47 to 63 Hz, compatible with standard AC line frequencies.\u003c\/li\u003e\n\u003cli\u003eSignal Delays: Features Off to On transition in 1.0 ms and On to Off in 26 ms for inputs.\u003c\/li\u003e\n\u003cli\u003eOutput Transition: Off to On in 1.0 ms; On to Off in 8.3 ms at 60 Hz or 10.0 ms at 50 Hz.\u003c\/li\u003e\n\u003cli\u003ePower Dissipation: Maximum 31.3 Watts with thermal dissipation up to 106.73 BTU per hour.\u003c\/li\u003e\n\u003cli\u003eIsolation Voltage: Provides 1250VAC isolation between I\/O groups and logic for safety.\u003c\/li\u003e\n\u003cli\u003eWeight: 2.00 lbs (0.91 kg).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eMounting Guidelines and Environmental Tolerance\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou can mount the \u003cstrong\u003e1791-16AC\u003c\/strong\u003e in either vertical or horizontal orientation to fit your enclosure.\u003c\/li\u003e\n\u003cli\u003eVertical mounting allows better airflow, supporting up to 600 mA per output at 30 degrees Celsius.\u003c\/li\u003e\n\u003cli\u003eHorizontal mounting supports up to 300 mA per output at 30 degrees Celsius due to reduced convection cooling.\u003c\/li\u003e\n\u003cli\u003eThe module derates current at higher temperatures, ensuring safe operation up to 60 degrees Celsius.\u003c\/li\u003e\n\u003cli\u003eMaximum Off-state Voltage is 35 Volts with a minimum Off-state Current of 2.3 mA for reliable noise immunity.\u003c\/li\u003e\n\u003cli\u003eThis Block I\/O withstands typical industrial electrical noise and transient conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions (FAQ)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs the Allen-Bradley 1791-16AC a new or used module?\u003c\/strong\u003e\u003cbr\u003eWe supply a brand new original \u003cstrong\u003e1791-16AC\u003c\/strong\u003e unit with full factory specifications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow many outputs does the 1791-16AC Block I\/O provide?\u003c\/strong\u003e\u003cbr\u003eThis model features sixteen 120VAC outputs split into two groups of eight for flexible load distribution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is the maximum output current in a horizontal mounting position?\u003c\/strong\u003e\u003cbr\u003eIn horizontal mounting, the \u003cstrong\u003e1791-16AC\u003c\/strong\u003e supports 150 mA at 60 degrees Celsius and 300 mA at 30 degrees Celsius per point.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCan this module communicate directly with a PLC?\u003c\/strong\u003e\u003cbr\u003eYes, the integrated Remote I\/O adapter allows direct communication with a PLC scanner via daisy-chain connection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is the isolation voltage between I\/O groups?\u003c\/strong\u003e\u003cbr\u003eThe module provides 1250VAC isolation between I\/O groups, ensuring safe operation in mixed-voltage panels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDo you have the 1791-16AC in stock?\u003c\/strong\u003e\u003cbr\u003eYes, we have stock available and typically ship orders within 5 days.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eContact Information Inquiries: \u003ca href=\"mailto:sales@nex-auto.com\"\u003esales@nex-auto.com\u003c\/a\u003e , \u003ca href=\"https:\/\/wa.me\/8615392429628\"\u003e+86 153 9242 9628\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003ePartner \u003cstrong\u003eNexAuto Technology Limited\u003c\/strong\u003e : \u003ca rel=\"nofollow\" href=\"https:\/\/www.nex-auto.com\/\"\u003ehttps:\/\/www.nex-auto.com\/\u003c\/a\u003e\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":45835101896865,"sku":"1791-16AC","price":215.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/5390\/3265\/files\/1791-16AC.jpg?v=1773901150","url":"https:\/\/www.autonexcontrol.com\/az\/products\/1791-16ac-allen-bradley-block-i-o-module-16-inputs-outputs","provider":"AutoNex Controls Limited ","version":"1.0","type":"link"}