{"product_id":"allen-bradley-1797-ps1e-flex-ex-intrinsically-safe-dc-power-supply","title":"Allen Bradley 1797-PS1E FLEX Ex Intrinsically Safe DC Power Supply","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen Bradley 1797-PS1E\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprovides high-integrity DC power specifically for FLEX Ex™ intrinsically safe I\/O systems. This robust power supply converts high-voltage AC input into regulated DC power for modules operating in Zone 1 or Zone 2 hazardous locations. Despite its discontinuation by the manufacturer, we maintain\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eunits in stock to support critical infrastructure and legacy system maintenance. Its Quad-Ex rating and flame-proof enclosure make it a vital component for oil refineries, chemical plants, and grain processing facilities.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe 1797-PS1E features specialized protection circuitry and a heavy-duty chassis:\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\u003eModel\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1797-PS1E\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInput Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e85–250 V AC (Wide Range)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOutput Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDC Power for FLEX Ex Modules\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCertification\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eQuad-Ex \/ Flame-Proof\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eEnclosure Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHeavy-duty Industrial Cast\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\u003e15.04 lbs (6.82 kg)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Environment\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHazardous Locations (Intrinsically Safe)\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\u003cp\u003eThe 1797-PS1E solves the complex challenge of delivering power within explosive atmospheres:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFlame-Proof Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe unit utilizes a specialized flame-proof enclosure that contains any internal spark or explosion. This prevents the ignition of external flammable gases, allowing the power supply to reside closer to the field devices in hazardous zones.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eUniversal AC Input:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe wide 85-250 V AC input range accommodates global power standards without requiring external step-down transformers or complex wiring modifications. This simplifies installation in multinational plant designs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQuad-Ex Redundancy Support:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe Quad-Ex architecture provides four isolated outputs, ensuring that a single fault does not compromise the entire I\/O rack. This design maximizes system availability in high-consequence process environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThermal Heat Sinking:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 15.04 lb cast-metal chassis acts as a massive passive heat sink. This eliminates the need for fans—which are prone to failure in dusty or corrosive environments—ensuring long-term reliability even under full-load conditions.\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\u003eHow can you provide a \"Brand New\" unit if the manufacturer discontinued it in 2017?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe specialize in sourcing surplus and \"New Old Stock\" (NOS) from industrial reserves. Every 1797-PS1E we ship undergoes a rigorous quality inspection to confirm its\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003estatus, complete with original seals and zero previous field use.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs the 1797-PS1E compatible with standard FLEX I\/O (1794 series)?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The 1797-PS1E specifically serves the FLEX Ex (1797) intrinsically safe family. Do not attempt to use this with standard 1794 modules as the physical backplane and safety barriers differ significantly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the specific grounding requirements for this unit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHazardous area regulations require strict adherence to grounding protocols. You must connect the 1797-PS1E to a dedicated, low-impedance safety ground to ensure the intrinsic safety barriers function correctly and prevent static buildup.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the weight of the unit impact mounting?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. At 15.04 lbs, the 1797-PS1E is significantly heavier than standard I\/O modules. Ensure your DIN rail or mounting plate can support the static load and withstand the mechanical vibrations inherent to heavy industrial machinery.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52792636047669,"sku":"1797-PS1E","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/1797-PS1E.png?v=1777348355","url":"https:\/\/www.5gplc.com\/products\/allen-bradley-1797-ps1e-flex-ex-intrinsically-safe-dc-power-supply","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}