{"product_id":"1715-a3io-allen-bradley-redundant-i-o-system-3-slot-base-unit","title":"1715-A3IO | Allen Bradley | Redundant I\/O System 3-Slot Base Unit","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen Bradley 1715-A3IO\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as the structural and electrical foundation for the 1715 Redundant I\/O system. This 3-slot base unit facilitates high-availability configurations by providing the necessary backplane connections for redundant I\/O modules. It enables mission-critical systems to maintain continuous operation during module swaps or internal faults. We supply this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and factory-original\u003c\/strong\u003e, ensuring your safety-critical or high-availability control loops meet the most stringent industrial standards.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe 1715-A3IO manages power distribution and signal routing across three dedicated I\/O slots with the following technical parameters:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAllen Bradley (Rockwell Automation)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3-Slot I\/O Base\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBackplane Power\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e165 mA @ 18…32V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSystem Power Dissipation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3.0 W Max\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eIsolation Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e50V (Continuous) I\/O ports to backplane\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eFuse Protection\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e50 mA, 125V, Type T\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eTemperature Code\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNorth American T4 \/ IEC T4\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eField Slew Rate (Max)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e150 V\/s\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.26 Kg (0.57 lbs)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDimensions (D x W x H)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e11.8 cm x 4.2 cm x 16.6 cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFacilitates Hot Swapping:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 1715-A3IO design supports the removal and insertion of modules under power (RIUP). This allows technicians to replace faulty modules without interrupting the field signal or shutting down the process, effectively eliminating production downtime.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh Thermal Resilience:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCarrying a T4 temperature code, this base unit operates safely in hazardous environments where surface temperature control remains critical. The open-style enclosure design promotes natural convection to manage heat during high-density I\/O operations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOptimized Signal Integrity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe unit features built-in isolation (50V continuous) between I\/O ports and the backplane. This barrier prevents field-side electrical noise or surges from damaging the central controller, ensuring clean data transmission in electrically \"noisy\" industrial settings.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCompact Footprint for High Density:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAt only 4.2 cm wide, this 3-slot base maximizes rail space. It solves the challenge of limited cabinet depth and width, allowing engineers to deploy redundant architectures in confined spaces that typically only accommodate simplex I\/O.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this base unit include the I\/O modules?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The 1715-A3IO is the mechanical and electrical base unit. You must purchase the 1715-series I\/O modules separately to populate the three available slots.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this in hazardous locations?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The T4 temperature rating (North American and IEC standards) permits installation in specific hazardous environments, provided the overall enclosure meets the requirements of the zone.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the purpose of the 50 mA fuse?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 1715-A3IO includes a Type T fuse to protect the internal circuitry against overcurrent conditions. This safeguard prevents a single module fault from compromising the entire redundant backplane.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I mount the 1715-A3IO?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe unit clips directly onto a standard 35mm DIN rail. It interfaces horizontally with other 1715 base units (such as the 1715-A2A adapter base) to expand the I\/O bus.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":53442039087288,"sku":"1715-A3IO","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/1715-A3IO.jpg?v=1778141534","url":"https:\/\/www.globalpetroparts.com\/products\/1715-a3io-allen-bradley-redundant-i-o-system-3-slot-base-unit","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}