{"product_id":"allen-bradley-1797-ps1n-flex-ex-intrinsically-safe-power-supply","title":"Allen-Bradley 1797-PS1N FLEX Ex Intrinsically Safe Power Supply","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1797-PS1N\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efunctions as a high-performance,\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eIntrinsically Safe (IS) Power Supply\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003especifically engineered for the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eFLEX Ex I\/O\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eplatform. This module provides critical power distribution to I\/O components situated in hazardous environments. By converting high-voltage AC input into regulated IS-limited power, it ensures safe operation without risking ignition in volatile atmospheres. We offer this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoriginal stock, providing a vital replacement solution for systems requiring the exact specifications of this discontinued series.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe 1797-PS1N incorporates robust electrical parameters to maintain system integrity in demanding zones:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\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\u003eOperating Voltage Range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e85 to 250 Volts AC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInput Power Requirement\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e55 Watts\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOutput Power Rating\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8.5 Watts\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOutput Channels\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4 Channels (Independently IS Limited)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eGalvanic Isolation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eChannel outputs isolated from the source\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePower Dissipation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e21 Watts\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eThermal Dissipation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e71.67 BTU\/hr\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\u003eQuad-Channel Independence:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis module features four independent output channels. Each channel carries its own Intrinsic Safety limitation, ensuring that a fault on one branch does not compromise the safety or operation of the remaining three.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSuperior Galvanic Isolation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe design provides full galvanic isolation between the AC source and the IS-limited outputs. This physical separation eliminates ground loops and prevents dangerous surges from reaching the hazardous area.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWide Universal AC Input:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe circuitry accepts a broad input range from\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e85V to 250V AC\u003c\/strong\u003e. This versatility allows global deployment across various power grids without the need for additional step-down transformers.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHazardous Area Compatibility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSpecifically designed for FLEX Ex systems, this power supply enables the placement of I\/O modules directly in Zone 1 or Zone 2 (Class I, Div 1) areas, significantly reducing wiring costs and cabinet space requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEffective Thermal Management:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDespite its compact form factor, the unit manages a thermal dissipation of\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e71.67 BTU\/hr\u003c\/strong\u003e, ensuring stable voltage regulation even in enclosed industrial control racks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003col class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSource Connection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eConnect the primary AC power (85-250V) to the designated input terminals. Ensure all wiring adheres to local Intrinsic Safety standards.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMounting:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSecure the 1797-PS1N to the FLEX Ex backplane. The module's design allows for rapid \"hot-swapping\" under specific safe-state conditions, though users must verify local hazardous area protocols.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eChannel Distribution:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDistribute the 8.5W output across the four channels to power FLEX Ex I\/O modules. Do not exceed the individual IS limits specified for the connected sensors or actuators.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the 1797-PS1N be used with standard FLEX I\/O modules?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNo. The 1797-PS1N specifically serves the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eFLEX Ex (Intrinsically Safe)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eline. Standard FLEX I\/O (1794 series) uses different power requirements and does not support the Intrinsic Safety limitations provided by this module.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does the galvanic isolation protect the system?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIt creates an electrical barrier that prevents high-voltage AC from ever reaching the hazardous field side. If a catastrophic failure occurs on the input side, the isolation ensures that no sparks or excess heat reach the explosive atmosphere.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this product still available from the manufacturer?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRockwell Automation discontinued the 1797-PS1N in late 2017. However, we provide\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoriginal units from our specialized inventory to help maintain legacy systems and avoid costly full-scale hardware migrations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the primary cause of thermal dissipation in this unit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 21W power dissipation represents the energy lost during the high-to-low voltage conversion and the maintenance of IS current limits. Ensure your enclosure provides adequate ventilation to handle the 71.67 BTU\/hr heat output.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52800624525621,"sku":"1797-PS1N","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/1797-PS1N.png?v=1777442947","url":"https:\/\/www.5gplc.com\/products\/allen-bradley-1797-ps1n-flex-ex-intrinsically-safe-power-supply","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}