{"schemaVersion":1,"slug":"lockout-reset-closing-permissive","name":"Lockout-reset closing permissive","kind":"symbol","abbreviation":"LCP","aliases":["Breaker closing controls","switchgear Breaker closing controls","switchgear","Switchgear","Lockout status","Close inhibit or permission"],"category":"control-circuits","drawingTypes":["Schematic"],"referenceFamilies":["Manufacturer"],"summary":"Blocks the closing path while the assigned protection lockout remains active.","description":["Blocks the closing path while the assigned protection lockout remains active. A closing circuit combines an operator or automatic request with the conditions that allow the breaker to close. The closing coil releases stored mechanism energy where that construction is used; it is different from the spring-charging motor.","In a switchgear bus-coupler panel, a close request is checked against position, mechanism readiness and the selected live-bus or dead-bus conditions before the closing circuit is enabled. For this reference, the drawing identifies “Lockout status” at the input and “Close inhibit or permission” at the output. Resetting lockout does not remove a persistent fault.","Follow request, permission and final coil output as separate signals. A permissive diagram must say which conditions block closing and what happens if a feedback signal becomes unavailable. 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: Lockout status. Identify its source device or document and the state represented on the drawing.","Follow the named output: Close inhibit or permission. Cross-reference its destination and separate the command from confirmation that the equipment responded.","Resetting lockout does not remove a persistent fault.","Follow request, permission and final coil output as separate signals. A permissive diagram must say which conditions block closing and what happens if a feedback signal becomes unavailable."],"drawingChecklist":["Label the source and connection reference for lockout status.","Identify the destination and defined state of close inhibit or permission.","Record the equipment or control-document revision supporting this functional block.","Check this application limit in the project design: Resetting lockout does not remove a persistent fault."],"distinction":"Resetting lockout does not remove a persistent fault. 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":"Lockout status"},{"label":"Output / connection","value":"Close inhibit or permission"},{"label":"Lookup label","value":"LCP is a library lookup label, not a standard device designation."}],"references":[{"sourceId":"pi26-masterclad","relevance":"Public technical context for breaker closing controls. Breaker control, mechanism, position contacts, racking interlocks and test interfaces. The application text and educational graphic are independently authored; the publisher does not certify this representation."}],"related":["circuit-breaker","25-synchronism-check","breaker-ready-to-close-aggregation"],"artwork":"pi26-lockout-reset-closing-permissive","publishedOn":"2026-11-03","updatedOn":"2026-11-03","provenance":"independent-public-research","representation":{"type":"functional-block","focus":"switchgear","family":"close","input":"Lockout status","output":"Close inhibit or permission"},"plainEnglish":{"title":"What this block does","introduction":"Blocks the closing path while the assigned protection lockout remains active.","example":"In a switchgear bus-coupler panel, a close request is checked against position, mechanism readiness and the selected live-bus or dead-bus conditions before the closing circuit is enabled. For this reference, the drawing identifies “Lockout status” at the input and “Close inhibit or permission” at the output. Resetting lockout does not remove a persistent fault.","drawings":"Start at the named input: Lockout status. Identify its source device or document and the state represented on the drawing. Follow the named output: Close inhibit or permission. Cross-reference its destination and separate the command from confirmation that the equipment responded.","terms":[{"name":"Input","meaning":"Lockout status"},{"name":"Output","meaning":"Close inhibit or permission"},{"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":["Lockout status","LCP","Close inhibit or permission"],"caption":"A reading guide. The entry's original illustration and input/output facts describe this application.","sources":[{"label":"Masterclad medium-voltage switchgear: circuit-breaker section interlocks","url":"https://productinfo.se.com/masterclad_mv_switchgear_ib/6055-30-masterclad-15kv-mv-switchgear-ib/English/6055-30%20Masterclad%20MV%20Switchgear%20Indoor%20%28bookmap%29_DD00646805.xml/%24/Section6-CircuitBreakerSectionInter-58DD6EC7"}],"profileId":"power-installation-close"},"url":"https://eloragrid.ai/symbols/lockout-reset-closing-permissive","illustration":{"url":"https://eloragrid.ai/tools/electrical-library/illustrations/lockout-reset-closing-permissive.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"pi26-masterclad","publisher":"Schneider Electric","title":"Masterclad medium-voltage switchgear: circuit-breaker section interlocks","url":"https://productinfo.se.com/masterclad_mv_switchgear_ib/6055-30-masterclad-15kv-mv-switchgear-ib/English/6055-30%20Masterclad%20MV%20Switchgear%20Indoor%20%28bookmap%29_DD00646805.xml/%24/Section6-CircuitBreakerSectionInter-58DD6EC7","scope":"Breaker control, mechanism, position contacts, racking interlocks and test interfaces.","type":"manufacturer","checkedOn":"2026-11-03","reuse":"link-only","relevance":"Public technical context for breaker closing controls. Breaker control, mechanism, position contacts, racking interlocks and test interfaces. The application text and educational graphic are independently authored; the publisher does not certify this representation."}]}