{"schemaVersion":1,"slug":"photovoltaic-string-combiner","name":"Photovoltaic string combiner","kind":"symbol","abbreviation":"COMB","aliases":["Photovoltaic string combiner","Photovoltaic string combiner functional block","Photovoltaic string combiner schematic reference"],"category":"microgrid-systems","drawingTypes":["Schematic"],"referenceFamilies":["Manufacturer"],"summary":"A string combiner brings identified solar DC circuits together at a defined connection arrangement.","description":["A string combiner brings identified solar DC circuits together at a defined connection arrangement.","Several string connections can feed a common outgoing DC route through their selected protection and monitoring.","Show each incoming string and the common outgoing DC connection, including any separately specified protection, isolation and monitoring. A combiner is a junction arrangement; its name alone does not establish which protective devices are installed or which string combinations are permitted. This is original functional artwork, not a certified standard graphic or device pinout."],"readingNotes":["Label every incoming string and the common outgoing circuit.","Identify installed protection and isolation separately.","Reference the selected enclosure, terminals and monitoring documents.","A combining connection does not replace the need to specify each circuit's protection and isolation."],"drawingChecklist":["Label every incoming string and the common outgoing circuit.","Identify installed protection and isolation separately.","Reference the selected enclosure, terminals and monitoring documents."],"distinction":"A combining connection does not replace the need to specify each circuit's protection and isolation.","facts":[{"label":"Representation type","value":"Original functional block; not a certified IEC or IEEE graphic"},{"label":"Concept input","value":"Identified string circuits"},{"label":"Concept output","value":"Common DC connection"}],"references":[{"sourceId":"expansion-20261027-pvcombiner","relevance":"Solar string combiner functions: public technical context for the named function. Product and compliance details remain with the publisher."}],"related":["photovoltaic-generator","power-converter","terminal"],"artwork":"expanded-photovoltaic-string-combiner","publishedOn":"2026-10-27","updatedOn":"2026-10-27","provenance":"independent-public-research","plainEnglish":{"title":"What does Photovoltaic string combiner mean?","introduction":"A string combiner brings identified solar DC circuits together at a defined connection arrangement.","example":"Several string connections can feed a common outgoing DC route through their selected protection and monitoring.","drawings":"Show each incoming string and the common outgoing DC connection, including any separately specified protection, isolation and monitoring. A combiner is a junction arrangement; its name alone does not establish which protective devices are installed or which string combinations are permitted.","terms":[{"name":"Combiner","meaning":"A defined arrangement that brings several circuits to a common connection."},{"name":"String identification","meaning":"The labels that let a reader trace each incoming solar circuit."}],"diagram":"flow","caption":"Original functional explanation. Arrows show information or energy roles; two-headed arrows identify two-way interfaces. This is not a pinout, certified standards graphic or complete circuit.","sources":[{"label":"Solar string combiner functions","url":"https://www.ti.com/solution/smart-combiner-box"}],"profileId":"researched-functional-reference","checklist":["Label every incoming string and the common outgoing circuit.","Identify installed protection and isolation separately.","Reference the selected enclosure, terminals and monitoring documents."],"questions":[{"question":"Does the combiner automatically protect every string?","answer":"No. The protective arrangement depends on the selected design and installed devices. Show the actual fuses, switching and monitoring instead of inferring them from a generic combiner block."}],"steps":["Identified string circuits","Combining arrangement","Common DC connection"],"bidirectional":false},"url":"https://eloragrid.ai/symbols/photovoltaic-string-combiner","illustration":{"url":"https://eloragrid.ai/tools/electrical-library/illustrations/photovoltaic-string-combiner.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"expansion-20261027-pvcombiner","title":"Solar string combiner functions","publisher":"Texas Instruments","url":"https://www.ti.com/solution/smart-combiner-box","type":"manufacturer","scope":"Public functional documentation. Original explanatory text and educational block artwork; no publisher graphics or files reproduced.","checkedOn":"2026-10-27","reuse":"link-only","relevance":"Solar string combiner functions: public technical context for the named function. Product and compliance details remain with the publisher."}]}