{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA9277-0HA20","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA9277-0HA20","canonicalUrl":"https://aoctrl.com/siemens/3VA9277-0HA20","factsUrl":"https://aoctrl.com/api/mcp/products/3VA9277-0HA20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON, motorized operating mechanism (MO), 3VA9277-0HA20, control supply 110-230 V AC / 110-250 V DC, for 3VA6 150/250 and 3VA5 250 breakers.","salesMarkdown":"The Siemens SENTRON 3VA9277-0HA20 is a motorized operating mechanism (MO) designed to remotely open and close 3VA molded case circuit breakers. It accepts a control supply voltage of 110-230 V AC (60 Hz) or 110-250 V DC, making it compatible with common industrial control voltages across different regions. The mechanism draws 250 VA of apparent power during operation, with a typical make and break time of 1 second each — fast enough for routine switching but not intended for high-speed protection duties. ## Breaker compatibility and panel fit This motor operator is specified for the 3VA6 150/250 and 3VA5 250 breaker frames. It mounts directly onto the breaker, so the panel footprint is determined by the breaker itself — the mechanism adds minimal depth beyond the breaker body. The 132 mm depth, 105 mm width, and 75 mm height are the mechanism's own dimensions; verify clearance inside the enclosure, particularly for the wiring space needed at the rear and sides. ## Environmental range and wiring The control terminals accept a stripped length of 7 mm — standard for most screw-clamp terminations on this class of accessory.","metaTitle":"Siemens SENTRON 3VA9277-0HA20 Motor Operator, 110-230V AC","metaDescription":"Siemens SENTRON 3VA9277-0HA20 motorized operating mechanism for 3VA6/3VA5 breakers. 110-230V AC/110-250V DC control supply. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Breaker Accessories"],"specifications":{"Depth":"132 mm","Width":"105 mm","Height":"75 mm","Maximal":"250 V","Maximum":"80 °C","Minimum":"-40 °C","Stripped Length":"7 mm","lifecycle_stage":"current","Product Brand Name":"SENTRON","Make Time / Typical":"1 s","Product Designation":"Accessories","Break Time / Typical":"1 s","Design Of The Product":"Motorized operating mechanism (MO)","Operating Apparent Power":"250 VA","Rated control supply voltage Us at AC 60 Hz /minimum":"110 V","Rated control supply voltage Us at AC 60 Hz / maximum":"230 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=650769&mlfb=3VA9277-0HA20","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA9277-0HA20/alternatives.json"},"ai":{"faq":[{"question":"What breakers is the 3VA9277-0HA20 compatible with?","answer":"This motor operator is designed for the Siemens 3VA6 150/250 and 3VA5 250 molded case circuit breaker frames. It is not a universal accessory — verify your breaker frame before ordering."},{"question":"What control voltage does the 3VA9277-0HA20 require?","answer":"The mechanism accepts 110-230 V AC at 60 Hz, or 110-250 V DC. It draws 250 VA of apparent power during operation."},{"question":"Where can I buy the 3VA9277-0HA20 and get current pricing?","answer":"This part is sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commercial response."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA9277-0HA20","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3VA9277-0HA20 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}