{"schemaVersion":1,"slug":"three-pole-gang-operated-breaker-reference","name":"Three-pole gang-operated breaker reference","kind":"symbol","abbreviation":"TGBR","aliases":["Switching-device operating references","switchgear Switching-device operating references","switchgear","Switchgear","Common mechanism command","Three-pole operation"],"category":"control-circuits","drawingTypes":["Schematic"],"referenceFamilies":["Manufacturer"],"summary":"Identifies a mechanism arrangement coordinating all three poles through its documented operation.","description":["Identifies a mechanism arrangement coordinating all three poles through its documented operation. A switching-device operating reference adds the specific mechanism or duty context needed to interpret its place in a power circuit. The same basic switching outline can serve different equipment constructions, so the added description must remain attached to its device tag.","In a medium-voltage switchgear drawing, the operating reference helps the reader distinguish the interrupting device from its isolation, earthing and auxiliary-control interfaces. For this reference, the drawing identifies “Common mechanism command” at the input and “Three-pole operation” at the output. Simultaneous command does not imply identical contact timing.","Use the device schedule for its actual construction, operating duty and ratings. These original functional illustrations describe the named role and do not certify a standard glyph or product footprint. The functional block is an independent explanation of this named application. Equipment-specific ratings, terminal connections and operating conditions must be established in the project documentation."],"readingNotes":["Start at the named input: Common mechanism command. Identify its source device or document and the state represented on the drawing.","Follow the named output: Three-pole operation. Cross-reference its destination and separate the command from confirmation that the equipment responded.","Simultaneous command does not imply identical contact timing.","Use the device schedule for its actual construction, operating duty and ratings. These original functional illustrations describe the named role and do not certify a standard glyph or product footprint."],"drawingChecklist":["Label the source and connection reference for common mechanism command.","Identify the destination and defined state of three-pole operation.","Record the equipment or control-document revision supporting this functional block.","Check this application limit in the project design: Simultaneous command does not imply identical contact timing."],"distinction":"Simultaneous command does not imply identical contact timing. This reference describes the named application; it does not establish a new IEC graphical symbol, an ANSI device-function number or an exact manufacturer connection diagram.","facts":[{"label":"Representation","value":"Functional block"},{"label":"Installation focus","value":"Switchgear"},{"label":"Input / boundary","value":"Common mechanism command"},{"label":"Output / connection","value":"Three-pole operation"},{"label":"Lookup label","value":"TGBR is a library lookup label, not a standard device designation."}],"references":[{"sourceId":"pi26-breaker-products","relevance":"Public technical context for switching-device operating references. Circuit-breaker construction and interruption families. The application text and educational graphic are independently authored; the publisher does not certify this representation."}],"related":["circuit-breaker","disconnector","magnetically-latched-operating-mechanism-reference"],"artwork":"pi26-three-pole-gang-operated-breaker-reference","publishedOn":"2026-11-03","updatedOn":"2026-11-03","provenance":"independent-public-research","representation":{"type":"functional-block","focus":"switchgear","family":"device-functions","input":"Common mechanism command","output":"Three-pole operation"},"plainEnglish":{"title":"What this block does","introduction":"Identifies a mechanism arrangement coordinating all three poles through its documented operation.","example":"In a medium-voltage switchgear drawing, the operating reference helps the reader distinguish the interrupting device from its isolation, earthing and auxiliary-control interfaces. For this reference, the drawing identifies “Common mechanism command” at the input and “Three-pole operation” at the output. Simultaneous command does not imply identical contact timing.","drawings":"Start at the named input: Common mechanism command. Identify its source device or document and the state represented on the drawing. Follow the named output: Three-pole operation. Cross-reference its destination and separate the command from confirmation that the equipment responded.","terms":[{"name":"Input","meaning":"Common mechanism command"},{"name":"Output","meaning":"Three-pole operation"},{"name":"Application reference","meaning":"An explanation of a named drawing function or circuit relationship; the project documents define the equipment and its connections."}],"diagram":"flow","steps":["Common mechanism command","TGBR","Three-pole operation"],"caption":"A reading guide. The entry's original illustration and input/output facts describe this application.","sources":[{"label":"High-voltage circuit breakers","url":"https://www.siemens-energy.com/global/en/home/products-services/product-offerings/circuit-breakers.html"}],"profileId":"power-installation-device-functions"},"url":"https://eloragrid.ai/symbols/three-pole-gang-operated-breaker-reference","illustration":{"url":"https://eloragrid.ai/tools/electrical-library/illustrations/three-pole-gang-operated-breaker-reference.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"pi26-breaker-products","publisher":"Siemens Energy","title":"High-voltage circuit breakers","url":"https://www.siemens-energy.com/global/en/home/products-services/product-offerings/circuit-breakers.html","scope":"Circuit-breaker construction and interruption families.","type":"manufacturer","checkedOn":"2026-11-03","reuse":"link-only","relevance":"Public technical context for switching-device operating references. Circuit-breaker construction and interruption families. The application text and educational graphic are independently authored; the publisher does not certify this representation."}]}