{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-1AA32-0DH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-1AA32-0DH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-1AA32-0DH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-1AA32-0DH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1, switch disconnector, 3-pole, 250 A, SD100, IP40 front, undervoltage release 208-230 V AC, 2 aux switches + 1 trip alarm switch HQ, busbar front connection.","salesMarkdown":"The Siemens 3VA1225-1AA32-0DH0 is a SENTRON 3VA1 switch disconnector in MCCB design — 3-pole, rated 250 A continuous, with no overload or short-circuit protection built in. It's a load-break switch for isolation and switching duty, not a circuit breaker. The 250 A rating holds flat from 40 °C to 50 °C; above that it derates to 243 A at 55 °C, 237 A at 60 °C, 230 A at 65 °C, and 223 A at 70 °C, so if your enclosure runs hot, factor that curve into the continuous current budget. The UVR drops the switch on loss of control voltage, which is standard for safety isolation schemes where you want the load disconnected if the control supply fails. The auxiliary contacts let a PLC or panel indicator confirm the switch position without climbing into the enclosure. Connection is busbar front-terminal, so it's designed for panel-mounted busbar systems — common in distribution boards where the bus runs across the front of the devices. Footprint is 105 mm wide × 158 mm high × 70 mm deep — standard 3-pole MCCB form factor for the 3VA1 frame. Busbar connection on the front terminals means the bus runs across the device faces, not the sides. Mechanical service life is 15,000 switching cycles typical. Power loss is 57 W maximum at rated current. If you're switching DC loads, that 500 V ceiling is the limit.","metaTitle":"Siemens 3VA1225-1AA32-0DH0 SENTRON Switch Disconnector, 250","metaDescription":"Siemens 3VA1225-1AA32-0DH0 SENTRON switch disconnector, 250 A, 3-pole, SD100, IP40 front, undervoltage release 208-230 V AC. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"105 mm","Height":"158 mm","at 40 °C":"250 A","at 45 °C":"250 A","at 50 °C":"250 A","at 55 °C":"243 A","at 60 °C":"237 A","at 65 °C":"230 A","at 70 °C":"223 A","Trip Indicator":"Yes","Number Of Poles":"3","Product version":"in MCCB design","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Switch disconnector","Undervoltage Release":"Yes","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"57 W","Auxiliary contact version":"2 auxiliary switches + 1 trip alarm switch HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Design Of The Auxiliary Release":"Undervoltage release (UVR)","Tension assignée d'isolement Ui":"800 V","protection class IP / on the front":"IP40","reference code / acc. to IEC 81346-2":"Q","Max. rated operational voltage Ue with DC":"500 V","Product Function / Communication Function":"No","Undervoltage Release With Leading Contact":"No","Product Extension / Optional / Motor Drive":"Yes","number of CO contacts / for auxiliary contacts":"3","Mechanical Service Life (Switching Cycles) / Typical":"15 000","Type Of Electrical Connection / For Main Current Circuit":"busbar connection","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal"}},"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=569254&mlfb=3VA1225-1AA32-0DH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-1AA32-0DH0/alternatives.json"},"ai":{"faq":[{"question":"What is 3VA1225-1AA32-0DH0's listed depth?","answer":"The depth is 70 mm. Combined width is 105 mm and height is 158 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-1AA32-0DH0","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/3VA1225-1AA32-0DH0 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}}