{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.electric-strike","code":"thing-q1790509","url":"https://ver.cy/models/thing/q1790509/","name":"electric strike","alternateNames":[],"kind":"thing","status":"published","version":"0.1.0-research.1","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.OBJ"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"An electric strike is an electrically controlled door-frame fitting whose movable keeper selectively releases a compatible lock latch or bolt, allowing the door to open without retracting that latch or bolt.","purpose":"Enable an agent to recognise an electric strike, assess its compatibility and operating state, and determine which installation, release, testing or maintenance actions are appropriate.","scope":{"in":["Electrically controlled keeper and retaining mechanism","Compatibility with mating latch or bolt, frame and door geometry","Electrical supply, actuation and release behaviour","Mechanical condition, monitoring signals and failure diagnosis","Installation-specific suitability, documented ratings and maintenance requirements"],"out":["Credential readers, identity records and access-authorisation policies","Access-control panels and building-wide control logic","The complete door, frame, hinges and closer assembly","The internal mechanism of the mating lockset or exit device","Electromagnetic locks and electrically retracting locks as separate hardware kinds"],"boundaries":[]},"distinguishingFeatures":["The controlled retaining component is a strike or keeper associated with the frame side of the opening and engages a separate mating latch or bolt.","Electrical actuation changes whether the keeper retains or permits passage of the mating latch or bolt.","Unlike a passive strike plate, it has an electrically controlled release function.","Unlike an electromagnetic lock, its retention depends on mechanical engagement with a mating latch or bolt rather than direct magnetic attraction to an armature.","Unlike an electrified lockset that retracts its own latch, its defining controlled action occurs at the strike mechanism."],"structure":{"bundles":[{"id":"strike-identity-and-fit","name":"Strike identity and fit","description":"Identify the controlled keeper and its mechanical relationship to the opening.","layers":[{"id":"mechanism-boundary","name":"Mechanism boundary","description":"Establish which component electrically controls retention.","findings":[{"id":"controlled-keeper","name":"Controlled keeper","description":"Record the evidence that the device releases at the strike rather than retracting a door-mounted latch or holding an armature magnetically.","questions":[{"text":"Which component changes position or restraint when the strike is electrically actuated?","id":"controlled-keeper-q01","kind":"definition"},{"text":"Which retaining and retracting functions belong to the mating lockset or exit device?","id":"controlled-keeper-q02","kind":"boundary"}]}]},{"id":"mating-and-mounting","name":"Mating and mounting","description":"Establish the physical conditions required for correct engagement.","findings":[{"id":"engagement-envelope","name":"Engagement envelope","description":"Capture mounting dimensions, handing and latch or bolt geometry as a combined fit assessment.","questions":[{"text":"What frame cutout, mounting depth, keeper opening and latch engagement dimensions are required in mm?","id":"engagement-envelope-q01","kind":"measurement"},{"text":"Does the documented compatibility cover the actual mating hardware, handing and any auxiliary deadlatching feature?","id":"engagement-envelope-q02","kind":"boundary"}]}]}]},{"id":"electrical-actuation-and-states","name":"Electrical actuation and states","description":"Describe power requirements and the relationship between commands and mechanical retention.","layers":[{"id":"power-interface","name":"Power interface","description":"Specify the electrical conditions under which the strike may be operated.","findings":[{"id":"supply-and-duty","name":"Supply and duty","description":"Record permitted supply characteristics, current demand and energisation limits.","questions":[{"text":"What voltage, AC or DC supply, polarity and actuation or holding current does the documented configuration require?","id":"supply-and-duty-q01","kind":"measurement"},{"text":"What energisation duration, duty cycle and wiring requirements must the controller and power supply satisfy?","id":"supply-and-duty-q02","kind":"action"}]}]},{"id":"retention-transitions","name":"Retention transitions","description":"Map powered, unpowered and commanded conditions to keeper behaviour.","findings":[{"id":"power-loss-and-reset","name":"Power loss and reset","description":"Describe loss-of-power behaviour, release timing and the conditions for restoring retention.","questions":[{"text":"What does the keeper do when power is applied, removed or interrupted in its current configuration?","id":"power-loss-and-reset-q01","kind":"definition"},{"text":"After a release command ends, what keeper movement or door cycle is required before the mating latch is securely retained again?","id":"power-loss-and-reset-q02","kind":"action"}]}]}]},{"id":"retention-release-and-feedback","name":"Retention, release and feedback","description":"Assess mechanical performance and the evidence available about actual strike state.","layers":[{"id":"mechanical-performance","name":"Mechanical performance","description":"Separate resistance to forced opening from the ability to release under operating loads.","findings":[{"id":"retention-and-preload","name":"Retention and preload","description":"Record strength and release-under-load evidence with their distinct test conditions.","questions":[{"text":"What retention-force and endurance ratings are documented, and under which test methods and mounting conditions?","id":"retention-and-preload-q01","kind":"provenance"},{"text":"What load on the keeper is permitted during release, and what preload is present at the installed opening?","id":"retention-and-preload-q02","kind":"measurement"}]}]},{"id":"state-observability","name":"State observability","description":"Interpret strike feedback according to what each sensor actually detects.","findings":[{"id":"feedback-meaning","name":"Feedback meaning","description":"Distinguish keeper position, latch presence, controller output and independently observed door position.","questions":[{"text":"Which physical condition does each available monitoring contact detect, and how is its electrical output interpreted?","id":"feedback-meaning-q01","kind":"definition"},{"text":"Which claims about secure latching or door closure require evidence beyond the strike's own monitoring signals?","id":"feedback-meaning-q02","kind":"boundary"}]}]}]},{"id":"opening-suitability-and-approvals","name":"Opening suitability and approvals","description":"Determine whether the strike configuration is suitable for the opening's required behaviour and documented approvals.","layers":[{"id":"opening-behaviour","name":"Opening behaviour","description":"Relate strike retention to access, egress and emergency requirements owned by the door system.","findings":[{"id":"egress-and-emergency-interface","name":"Egress and emergency interface","description":"Identify how the installed strike interacts with the opening's exit hardware and required emergency responses.","questions":[{"text":"How can occupants operate the mating lock or exit hardware while the strike remains retaining, including during power loss?","id":"egress-and-emergency-interface-q01","kind":"boundary"},{"text":"Which required emergency responses affect this strike, and what authorised integrated test demonstrates them?","id":"egress-and-emergency-interface-q02","kind":"action"}]}]},{"id":"documented-suitability","name":"Documented suitability","description":"Tie standards, listings and environmental limits to the exact configuration being assessed.","findings":[{"id":"approval-evidence","name":"Approval evidence","description":"Capture applicable issuing bodies, standard editions, certification records and limitations on installation.","questions":[{"text":"Which standards and issuing bodies govern this application, and which current records demonstrate the exact product's claimed ratings or listings?","id":"approval-evidence-q01","kind":"provenance"},{"text":"Do the permitted frame preparation, mating hardware, power-loss configuration and environmental limits cover this installation, including any fire-rated assembly requirements?","id":"approval-evidence-q02","kind":"boundary"}]}]}]},{"id":"condition-and-service","name":"Condition and service","description":"Assess faults, installation quality and the work needed to preserve reliable retention and release.","layers":[{"id":"fault-assessment","name":"Fault assessment","description":"Use electrical and mechanical observations to locate retention or release problems.","findings":[{"id":"release-and-latching-faults","name":"Release and latching faults","description":"Record symptoms and discriminating checks for failure to release, failure to retain or intermittent operation.","questions":[{"text":"During a failed operation, what voltage reaches the strike, what does the keeper do, and where does the mating latch contact it?","id":"release-and-latching-faults-q01","kind":"measurement"},{"text":"Which documented checks distinguish inadequate power, excessive preload, misalignment, obstruction and an internal mechanism fault?","id":"release-and-latching-faults-q02","kind":"action"}]}]},{"id":"service-and-return-to-use","name":"Service and return to use","description":"Define permitted servicing and the evidence needed after adjustment or replacement.","findings":[{"id":"permitted-service-and-verification","name":"Permitted service and verification","description":"Link cleaning, adjustment, lubrication where specified, and component replacement to manufacturer instructions and functional checks.","questions":[{"text":"Which service actions and replacement parts are explicitly permitted for this strike, and which instructions establish those limits?","id":"permitted-service-and-verification-q01","kind":"provenance"},{"text":"What checks of latch engagement, retention, commanded release, power-loss response and monitoring must pass before the opening returns to use?","id":"permitted-service-and-verification-q02","kind":"action"}]}]}]},{"id":"evidence-and-external-alignment","name":"Evidence and external alignment","description":"What the world already says about this thing, gathered so the model can be checked against it.","layers":[{"id":"reported-evidence","name":"Reported evidence","description":"Findings from the breadth pass, kept separate from the structural claims.","findings":[{"id":"evidence-confidence-notes","name":"Check these first","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these check these first hold for the sense of electric strike this model covers, and on what evidence?","id":"evidence-confidence-notes-q01","kind":"provenance"}]},{"id":"evidence-kinds","name":"Kinds and varieties","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these kinds and varieties hold for the sense of electric strike this model covers, and on what evidence?","id":"evidence-kinds-q01","kind":"provenance"}]},{"id":"evidence-identifiers","name":"Identifiers and schemes","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these identifiers and schemes hold for the sense of electric strike this model covers, and on what evidence?","id":"evidence-identifiers-q01","kind":"provenance"}]},{"id":"evidence-standards-and-regulation","name":"Standards and regulation","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these standards and regulation hold for the sense of electric strike this model covers, and on what evidence?","id":"evidence-standards-and-regulation-q01","kind":"provenance"}]},{"id":"evidence-real-world-use","name":"Real-world use","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these real-world use hold for the sense of electric strike this model covers, and on what evidence?","id":"evidence-real-world-use-q01","kind":"provenance"}]},{"id":"evidence-measurements","name":"Typical measurements","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these typical measurements hold for the sense of electric strike this model covers, and on what evidence?","id":"evidence-measurements-q01","kind":"provenance"}]},{"id":"evidence-failure-modes-and-hazards","name":"Failure modes and hazards","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these failure modes and hazards hold for the sense of electric strike this model covers, and on what evidence?","id":"evidence-failure-modes-and-hazards-q01","kind":"provenance"}]},{"id":"evidence-regional-variation","name":"Regional variation","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these regional variation hold for the sense of electric strike this model covers, and on what evidence?","id":"evidence-regional-variation-q01","kind":"provenance"}]},{"id":"evidence-neighbours","name":"Neighbouring kinds and how to tell them apart","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these neighbouring kinds and how to tell them apart hold for the sense of electric strike this model covers, and on what evidence?","id":"evidence-neighbours-q01","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Report the state of an electric strike and its door to the building operator.","Release it for a person the access control system has authorized."],"mustNot":["Release a strike for someone the access system has not authorized.","Configure a strike to stay locked on power loss on a door that is an escape route.","Disable or bypass access logs for a controlled door.","Share access schedules or entry logs of identifiable people beyond those entitled to them."],"requiresHuman":["Changing fail-safe or fail-secure settings on a door.","Granting or revoking a person's access rights."]},"ethics":{"considerations":["Doors decide both security and escape; locking people in during a fire can kill.","Access logs record where people go and when."],"affectedParties":["Building occupants","People needing to escape in an emergency","The building owner"]},"owners":{"steward":"The building owner or operator of the access control system.","roles":[],"masterSystems":[]},"relations":[{"target":"Q839546","type":"parent","note":"registry parent class"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.electric-strike","Wikidata: Q1790509 (https://www.wikidata.org/wiki/Q1790509)"]},"properties":{"applicability":"required","items":["Mating hardware compatibility: Documented compatible latch, bolt, lockset or exit-device types and products","Mounting geometry: Faceplate, body, cutout, keeper opening and cavity dimensions in mm","Handing and mounting configuration: Manufacturer-declared handing, reversibility, orientation and mounting method","Supply requirements: Rated voltage in V, AC or DC, polarity requirements and permitted tolerances","Actuation current and duty: Actuation and holding current in A; permitted energisation duration in s or duty cycle in %","Loss-of-power retention mode: Fail-secure, fail-safe or configurable, with manufacturer-defined behaviour","Keeper and latch state: Keeper retained, released or unknown; mating latch engaged, disengaged or unknown","Release preload capability: Permitted load on the keeper during release in N, with test conditions","Documented strength and endurance: Retention force in N and operating cycles, each linked to its test method and configuration","Monitoring capability: Available signals for keeper status, latch presence or other manufacturer-defined conditions; unmonitored","Environmental operating limits: Temperature range in °C and documented moisture, corrosion or ingress classifications","Approval and assembly compatibility: Applicable standards, issuing bodies, listings and approved assembly configurations"]},"recognition":{"applicability":"required","items":["A metal keeper plate set in the door frame where the latch engages, with wiring behind it.","Often paired with a card reader, keypad or intercom near the door."]},"capabilities":{"applicability":"required","items":["Identify the strike mechanism and distinguish it from neighbouring electric locking hardware.","Evaluate fit with a specified frame and mating latch or bolt.","Determine the expected response to authorised release commands and supply loss.","Compare commanded state, monitoring feedback and observed mechanical behaviour.","Plan documented functional checks and diagnose retention or release faults.","Assess whether adjustment, maintenance or replacement is supported by the installation requirements."]},"hazards":{"applicability":"required","items":["Wrong fail-safe setting can trap people or leave a door insecure.","Wiring faults can leave a door unexpectedly open or locked."]},"interfaces":{"applicability":"required","items":["ANSI/BHMA A156.31, Electric Strikes and Frame Mounted Actuators, Builders Hardware Manufacturers Association.","EN 14846, Building hardware - Locks and latches - Electromechanically operated locks and striking plates, European Committee for Standardization."]},"context":{"applicability":"required","items":["Electric strikes are fitted into door frames in buildings where entry is controlled by an intercom, credential reader or remote release.","They allow an access control system to release a compatible latch while the door retains its mechanical lock hardware.","Their selection depends on door construction, latch compatibility and the required behavior during power loss or emergency escape."]}},"sources":[{"title":"Wikidata item Q1790509: electric strike","url":"https://www.wikidata.org/wiki/Q1790509","note":"identity and sense of the item"},{"title":"Wikipedia: Electric strike","url":"https://en.wikipedia.org/wiki/Electric_strike","note":"general description of the item"}],"openQuestions":["Does the registry intend electric strike to include specialised bolt-release and motorised keeper variants, and where should the boundary with electric keepers or electric releases lie?","Which standards, issuing bodies and certification schemes apply across the intended jurisdictions, particularly for fire-rated openings and escape routes?","What representative ranges of mounting dimensions, voltage, current, release preload, retention force and endurance can be supported by manufacturer documentation?","Which monitoring terms have consistent meanings across manufacturers, and which require product-specific interpretation?","Which configuration changes, frame modifications and service actions preserve documented approval for each relevant door assembly?"],"resources":{"spec":"/models/things/publications/thing-q1790509/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q1790509/spec.json"],"providers":["Codex"],"researchStatus":"unreviewed","generatedAt":"2026-09-12T09:26:55Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-07T10:10:27+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}