{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-1AA42-0DC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-1AA42-0DC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-1AA42-0DC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-1AA42-0DC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1225-1AA42-0DC0, switch disconnector in MCCB design, 4-pole, 250 A at 40 °C, busbar connection, undervoltage release 208-230 V AC, 2 HQ auxiliary switches.","salesMarkdown":"Four poles, busbar connection on the front terminals, and no overload or short-circuit protection inside the device; this is a disconnect-only switch, meant for isolation and load-breaking under fault-free conditions. Two HQ auxiliary contacts report the main contact position back to a PLC or status lamp. The 3VA1225-1AA42-0DC0 measures 140 mm wide by 158 mm tall by 70 mm deep — a compact footprint for a 250 A disconnect. Front terminals accept busbar connections, so it integrates into a busbar distribution system rather than individual cable lugs. The UVR coil draws from the control circuit; verify the supply matches the 208-230 V AC 50/60 Hz rating before wiring. Above that, it derates: 243 A at 55 °C, 237 A at 60 °C, 230 A at 65 °C, and 223 A at 70 °C.","metaTitle":"Siemens 3VA1225-1AA42-0DC0 SENTRON Switch Disconnector, 250","metaDescription":"Siemens 3VA1225-1AA42-0DC0 SENTRON switch disconnector, 250 A rated at 40 °C, 4-pole, with undervoltage release 208-230 V AC and 2 HQ auxiliary switches. Active production, quoted","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"140 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":"No","Number Of Poles":"4","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Switch disconnector","Undervoltage Release":"Yes","Design Of The Product":"in MCCB design","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"57 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Design Of The Auxiliary Switch":"2 auxiliary switches HQ","Design Of The Auxiliary Release":"Undervoltage release (UVR)","Insulation Voltage / Rated Value":"800 V","protection class IP / on the front":"IP40","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"600 V","Product Function / Communication Function":"No","Undervoltage Release With Leading Contact":"No","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","number of CO contacts / for auxiliary contacts":"2","Mechanical Service Life (Operating 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=569280&mlfb=3VA1225-1AA42-0DC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-1AA42-0DC0/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of this switch disconnector?","answer":"The depth is 70 mm, with a width of 140 mm and height of 158 mm."},{"question":"What undervoltage release does this part include?","answer":"It includes an undervoltage release (UVR) rated for 208-230 V AC, 50/60 Hz, which trips the switch when control voltage drops below that range."},{"question":"Where can I buy 3VA1225-1AA42-0DC0 and how is it quoted?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a request for current pricing and availability — no stock count or lead-time figure is published here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-1AA42-0DC0","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/3VA1225-1AA42-0DC0 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}}