{"schemaVersion":1,"slug":"spring-charging-motor-stop-contact","name":"Spring-charging motor stop contact","kind":"symbol","abbreviation":"SMSC","aliases":["Stored-energy mechanism supervision","switchgear Stored-energy mechanism supervision","switchgear","Switchgear","Charged-position contact","Charging motor stop"],"category":"control-circuits","drawingTypes":["Schematic"],"referenceFamilies":["Manufacturer"],"summary":"Stops charging when the mechanism reaches the specified charged condition.","description":["Stops charging when the mechanism reaches the specified charged condition. A stored-energy breaker mechanism has charging, release, indication and supervision functions. Motor supply, stored spring energy and the ability to complete an opening operation are separate drawing concerns.","In a switchgear panel, a charging motor replenishes the mechanism after an operation. Supervisory contacts let the controller report an incomplete charge or repeated charging demand before an operator requests another operation. For this reference, the drawing identifies “Charged-position contact” at the input and “Charging motor stop” at the output. Contact interpretation follows the mechanism diagram.","Show the individual contacts and the relevant motor or release circuit. Supply voltage, charging time, operating duty and permissible alarms must follow the chosen mechanism documentation. 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: Charged-position contact. Identify its source device or document and the state represented on the drawing.","Follow the named output: Charging motor stop. Cross-reference its destination and separate the command from confirmation that the equipment responded.","Contact interpretation follows the mechanism diagram.","Show the individual contacts and the relevant motor or release circuit. Supply voltage, charging time, operating duty and permissible alarms must follow the chosen mechanism documentation."],"drawingChecklist":["Label the source and connection reference for charged-position contact.","Identify the destination and defined state of charging motor stop.","Record the equipment or control-document revision supporting this functional block.","Check this application limit in the project design: Contact interpretation follows the mechanism diagram."],"distinction":"Contact interpretation follows the mechanism diagram. 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":"Charged-position contact"},{"label":"Output / connection","value":"Charging motor stop"},{"label":"Lookup label","value":"SMSC is a library lookup label, not a standard device designation."}],"references":[{"sourceId":"pi26-masterclad","relevance":"Public technical context for stored-energy mechanism supervision. 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","motor","spring-charging-motor-run-contact"],"artwork":"pi26-spring-charging-motor-stop-contact","publishedOn":"2026-11-03","updatedOn":"2026-11-03","provenance":"independent-public-research","representation":{"type":"functional-block","focus":"switchgear","family":"mechanism","input":"Charged-position contact","output":"Charging motor stop"},"plainEnglish":{"title":"What this block does","introduction":"Stops charging when the mechanism reaches the specified charged condition.","example":"In a switchgear panel, a charging motor replenishes the mechanism after an operation. Supervisory contacts let the controller report an incomplete charge or repeated charging demand before an operator requests another operation. For this reference, the drawing identifies “Charged-position contact” at the input and “Charging motor stop” at the output. Contact interpretation follows the mechanism diagram.","drawings":"Start at the named input: Charged-position contact. Identify its source device or document and the state represented on the drawing. Follow the named output: Charging motor stop. Cross-reference its destination and separate the command from confirmation that the equipment responded.","terms":[{"name":"Input","meaning":"Charged-position contact"},{"name":"Output","meaning":"Charging motor stop"},{"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":["Charged-position contact","SMSC","Charging motor stop"],"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-mechanism"},"url":"https://eloragrid.ai/symbols/spring-charging-motor-stop-contact","illustration":{"url":"https://eloragrid.ai/tools/electrical-library/illustrations/spring-charging-motor-stop-contact.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 stored-energy mechanism supervision. 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."}]}