{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA9277-0HC15","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA9277-0HC15","canonicalUrl":"https://aoctrl.com/siemens/3VA9277-0HC15","factsUrl":"https://aoctrl.com/api/mcp/products/3VA9277-0HC15","rawCanonicalId":null},"summary":{"shortDescription":"synchronizable motor operator 24V DC incl. COM accessory for: 3VA6 150/250 3VA5 250","salesMarkdown":"The Siemens 3VA9277-0HC15 is a SENTRON motorized operating mechanism with stored energy (SEO) designed for remote switching of 3VA6 150/250 and 3VA5 250 molded-case circuit breakers. It draws 24 V DC and has a typical make/break time of 0.08 s, pulling 300 VA during operation. This is a panel-mount accessory — it bolts onto the breaker front, not a standalone device — and the 162.8 mm depth, 105 mm width, 118.7 mm height footprint fits within the standard SENTRON family envelope. The stored-energy mechanism means the spring charges then fires the contacts, giving consistent switching speed independent of operator or coil timing. The 300 VA operating apparent power at 24 V DC is the peak inrush when the motor charges the spring — about 12.5 A at nominal voltage. The control transformer or DC supply feeding this mechanism must handle that surge, not just the holding current after the spring is charged. The 0.08 s make/break time is the mechanical switching interval, not the arc extinction time; the breaker itself handles interruption. The 7 mm stripped length on the control wiring terminals is the standard SENTRON accessory pitch — use ferruled stranded 0.2–2.5 mm² for reliable connection. ## Deployment context Mounts directly onto the front of a 3VA6 or 3VA5 breaker in a panel enclosure. The mechanism adds depth to the breaker assembly, so verify the enclosure depth clearance (162.8 mm plus the breaker body) before specifying. The 24 V DC control signal is typically run from a PLC digital output or a dedicated relay — no separate power supply required if the panel already has a 24 V bus.","metaTitle":"Siemens 3VA9277-0HC15 SENTRON Motorized Operating Mechanism,","metaDescription":"Siemens 3VA9277-0HC15 SENTRON motorized operating mechanism with stored energy for 3VA6/3VA5 breakers. 24 V DC, 300 VA. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Breaker Accessories"],"specifications":{"Depth":"162.8 mm","Width":"105 mm","title":"3VA9277-0HC15","Height":"118.7 mm","Maximal":"24 V","Maximum":"80 °C","Minimum":"-40 °C","description":"synchronizable motor operator 24V DC incl. COM accessory for: 3VA6 150/250 3VA5 250","Stripped Length":"7 mm","lifecycle_stage":"current","Product Brand Name":"SENTRON","Make Time / Typical":"0.08 s","Product Designation":"Accessories","Break Time / Typical":"0.08 s","Design Of The Product":"Motorized operating mechanism with stored energy mechanism (SEO)","Operating Apparent Power":"300 VA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/9b1edd6ed2ca7e4b898b993e10d17881.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=753299&mlfb=3VA9277-0HC15"},"ai":{"faq":[{"question":"Where can I buy 3VA9277-0HC15?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the operating voltage and power draw of 3VA9277-0HC15?","answer":"It operates on 24 V DC and draws 300 VA during the spring-charging cycle."},{"question":"What breakers is 3VA9277-0HC15 compatible with?","answer":"It is designed for 3VA6 150/250 and 3VA5 250 molded-case circuit breakers."},{"question":"What is the make/break time of this motor operator?","answer":"Typical make and break time is 0.08 s."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA9277-0HC15","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/3VA9277-0HC15 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}