{"product_id":"abb-sr91c790-1mrk002239-bbr01-power-supply-module","title":"ABB SR91C790 1MRK002239-BBR01 Power Supply Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e1MRK002239-BBR01\u003c\/strong\u003e is an internal hardware power supply module (PSM) engineered to supply stable, low-noise DC power rails across the backplane layout of protective relays. This \u003cstrong\u003e1MRK002239-BBR01\u003c\/strong\u003e switching power supply module accepts a high-voltage input spectrum ranging from 90 to 250 VDC, converting the bulk raw utility or substation battery source into regulated voltage steps required by downstream processing elements, binary I\/O boards, and analog input sampling cards. Built for high-availability substation automation networks, the module features robust electrical isolation, high-frequency line filters, and internal energy storage capabilities to ensure uninterrupted protective relaying logic and control functionality during brief network voltage sags or source transitions.\u003c\/p\u003e\n\u003cp\u003eRegarding technical nomenclature, the specific designation \u003cstrong\u003e1MRK002239-BBR01\u003c\/strong\u003e represents the spare part assembly kit version or commercial packaging index of the core product ID \u003cstrong\u003e1MRK002239-BB\u003c\/strong\u003e. Both codes reference identical hardware architecture, electrical parameters, environmental ratings, and physical chassis footprint dimensions.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWide high-voltage auxiliary input range accommodating 90 to 250 VDC substation battery networks.\u003c\/li\u003e\n\u003cli\u003eStrict electromagnetic compatibility (EMC) attenuation preventing high-frequency noise infiltration into logic cards.\u003c\/li\u003e\n\u003cli\u003eSlide-in board architecture for precise mechanical slot mating inside compatible protection terminal chassis.\u003c\/li\u003e\n\u003cli\u003eRegulated low-voltage internal DC bus outputs providing power to multi-channel processor modules.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSystem auxiliary power infrastructure for 650 series protection and control IED racks.\u003c\/li\u003e\n\u003cli\u003ePower supply subsystems for RET650 transformer protection terminals.\u003c\/li\u003e\n\u003cli\u003eModular power management inside integrated substation automation bay control arrays.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable style=\"width: 99.9009%;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 50.8895%;\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth style=\"width: 48.7867%;\"\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50.8895%;\"\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 48.7867%;\"\u003eABB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50.8895%;\"\u003e\u003cstrong\u003eGlobal Commercial Alias\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 48.7867%;\"\u003ePSM (Power Supply Module)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50.8895%;\"\u003e\u003cstrong\u003eProduct ID\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 48.7867%;\"\u003e1MRK002239-BB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50.8895%;\"\u003e\u003cstrong\u003eSpare Part Ordering Code\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 48.7867%;\"\u003e1MRK002239-BBR01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50.8895%;\"\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 48.7867%;\"\u003eSR91C790 Power Supply Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50.8895%;\"\u003e\u003cstrong\u003eTechnical Information Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 48.7867%;\"\u003e50\/60Hz 90-250 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50.8895%;\"\u003e\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 48.7867%;\"\u003e1 piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50.8895%;\"\u003e\u003cstrong\u003ePart Type Classification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 48.7867%;\"\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50.8895%;\"\u003e\u003cstrong\u003eUNSPSC Classification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 48.7867%;\"\u003e39120000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50.8895%;\"\u003e\u003cstrong\u003eCustoms Tariff Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 48.7867%;\"\u003e85389099\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50.8895%;\"\u003e\u003cstrong\u003eProduct Net Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 48.7867%;\"\u003e0.53 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50.8895%;\"\u003e\u003cstrong\u003eGross Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 48.7867%;\"\u003e0.53 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50.8895%;\"\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 48.7867%;\"\u003eSweden (SE)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlot Verification:\u003c\/strong\u003e Identify the precise hardware slot designation allocated for the Power Supply Module (PSM) within the specific protection IED rack manual prior to mechanical mounting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSource Isolation:\u003c\/strong\u003e Ensure the external 90-250 VDC input distribution line breaker is completely disengaged, locked out, and tagged before introducing the component to the chassis rack.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical Alignment:\u003c\/strong\u003e Slide the printed circuit board assembly carefully along the internal card rails until the rear multi-pin connector seats firmly into the passive backplane. Fully hand-tighten the front faceplate retention screws.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Earthing:\u003c\/strong\u003e Verify the master IED enclosure maintains a low-impedance substation ground connection to ensure integrated transient filters operate efficiently.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTermination Security:\u003c\/strong\u003e Tighten all auxiliary supply wire connections to the designated terminal block specification to minimize connection resistance and prevent localized thermal stress.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":52668627222891,"sku":"1MRK002239-BBR01","price":1000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/abb-sr91c790-1mrk002239-bbr01-power-supply-module-ynksqb4m3kl_5d37b276-a576-4574-bacb-eb6aa150b324.jpg?v=1765536029","url":"https:\/\/www.plcprotech.com\/products\/abb-sr91c790-1mrk002239-bbr01-power-supply-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}