{"schemaVersion":1,"slug":"ansi-two-pole-power-switch","name":"ANSI/IEEE Two-pole power switch form","kind":"symbol","abbreviation":"SW 2P","aliases":["HCB11Q50","VCB11Q50","IEEE 2P Power Switch","ANSI Two-pole power switch"],"category":"power-distribution","drawingTypes":["SLD","Schematic"],"referenceFamilies":["IEEE / ANSI","Manufacturer"],"summary":"IEEE-library form of two-pole power switch: a two-pole power switch operates two circuit conductors through a common device.","description":["This reference locates two-pole power switch in Autodesk's IEEE-oriented power switches family. A two-pole power switch operates two circuit conductors through a common device. The schematic may use separate pole elements linked by a mechanism annotation. The public library uses HCB11Q50 for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number.","Read the operating mechanism and the contact reference state together. Cross-reference every associated contact to the same device and show which movement, signal or reset changes its condition; the symbol alone does not establish the complete switching sequence.","Identify whether the two poles are phases, a phase and neutral, or DC conductors. Two poles do not necessarily mean a two-phase supply. The linked functional counterpart explains the same operating role in its own drawing context; agreement of every detailed convention mark is not asserted."],"readingNotes":["Identify whether the two poles are phases, a phase and neutral, or DC conductors.","The preview is an original explanation of this function. Match the actual drawing convention to its legend and the selected equipment documentation."],"drawingChecklist":["Name both conductors","Show common operator","Reference switching ratings"],"distinction":"Two poles do not necessarily mean a two-phase supply.","facts":[{"label":"Convention evidence","value":"Autodesk IEEE Symbol Preview: Power Switches; published form: 2P Power Switch."},{"label":"Public vendor block","value":"HCB11Q50. Vendor library token, not an IEEE symbol number."},{"label":"Drawing role","value":"Switching path"},{"label":"Identifier status","value":"The short label is a functional lookup label, not an assigned IEC or IEEE symbol number. Any separately listed Autodesk code is a verified vendor block name."},{"label":"Artwork scope","value":"Original educational geometry. Exact standard graphics, product ratings and terminal pinouts are not certified."}],"references":[{"sourceId":"s28-ieee-power-switches","relevance":"Public IEEE-oriented Power Switches table explicitly lists HCB11Q50 as 2P Power Switch. This supports the vendor convention context, not reproduction of the publisher graphic."}],"related":["two-pole-power-switch","disconnector","circuit-breaker"],"artwork":"s28-ansi-two-pole-power-switch","publishedOn":"2026-10-28","updatedOn":"2026-10-28","provenance":"independent-public-research","symbolVariant":{"convention":"IEEE / ANSI","form":"2P Power Switch","reference":"Autodesk IEEE Symbol Preview: Power Switches, block HCB11Q50. Matching functional counterpart linked separately. Independently drawn educational geometry; not a certified IEEE glyph or database identifier.","counterpart":"two-pole-power-switch"},"plainEnglish":{"title":"What does ANSI/IEEE Two-pole power switch form mean?","introduction":"This reference locates two-pole power switch in Autodesk's IEEE-oriented power switches family. A two-pole power switch operates two circuit conductors through a common device. The schematic may use separate pole elements linked by a mechanism annotation. The public library uses HCB11Q50 for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number.","example":"Read the operating mechanism and the contact reference state together. Cross-reference every associated contact to the same device and show which movement, signal or reset changes its condition; the symbol alone does not establish the complete switching sequence.","drawings":"Identify whether the two poles are phases, a phase and neutral, or DC conductors. Two poles do not necessarily mean a two-phase supply. The linked functional counterpart explains the same operating role in its own drawing context; agreement of every detailed convention mark is not asserted.","terms":[{"name":"DC","meaning":"Direct current: electricity flowing in one direction."},{"name":"Normally open / normally closed","meaning":"The contact state in the normal condition defined for the drawing."},{"name":"Phase","meaning":"One of the related AC waveforms in a power system."}],"diagram":"flow","steps":["Identify the device and form","Read the connections and state","Check the equipment reference"],"caption":"A guide to reading this reference. The original symbol illustration and its drawing notes appear below; these boxes are not a wiring diagram.","sources":[{"label":"Autodesk IEEE Symbol Preview: Power Switches","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-E57D79F6-E6C4-4B78-95DC-62F16642C95B.htm"}],"detail":"IEEE-library form of two-pole power switch: a two-pole power switch operates two circuit conductors through a common device. Two poles do not necessarily mean a two-phase supply.","profileId":"reviewed-symbol-20261028"},"url":"https://eloragrid.ai/symbols/ansi-two-pole-power-switch","illustration":{"url":"https://eloragrid.ai/tools/electrical-library/illustrations/ansi-two-pole-power-switch.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"s28-ieee-power-switches","title":"Autodesk IEEE Symbol Preview: Power Switches","publisher":"Autodesk","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-E57D79F6-E6C4-4B78-95DC-62F16642C95B.htm","type":"cad-reference","scope":"Public power switches family names and vendor block tokens. Horizontal, vertical and rotated placements are not separate engineering functions. Exact standard geometry is not reproduced.","checkedOn":"2026-10-28","reuse":"link-only","relevance":"Public IEEE-oriented Power Switches table explicitly lists HCB11Q50 as 2P Power Switch. This supports the vendor convention context, not reproduction of the publisher graphic."}]}