{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-1AA42-0AC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-1AA42-0AC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-1AA42-0AC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-1AA42-0AC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1225-1AA42-0AC0, switch disconnector in MCCB design, 4-pole, 250 A, 690 VAC, 70 mm depth, IP40 front.","salesMarkdown":"The Siemens SENTRON 3VA1225-1AA42-0AC0 is a 4-pole switch disconnector in an MCCB-style frame, rated for 250 A continuous at 40 °C through 50 °C with no derating. It handles AC loads up to 690 V and DC loads up to 600 V. Insulation voltage is rated at 800 V. This is a straight disconnect — no overload or short-circuit protection inside the unit, so it relies on upstream protection. ## Thermal performance and panel fit Above that it steps down: 243 A at 55 °C, 237 A at 60 °C, 230 A at 65 °C, and 223 A at 70 °C. The unit measures 70 mm deep, 140 mm wide, and 158 mm tall — a compact footprint for a 4-pole 250 A disconnect. Main circuit connection is via busbar at the front terminals.","metaTitle":"Siemens 3VA1225-1AA42-0AC0 SENTRON Switch Disconnector, 250","metaDescription":"Siemens SENTRON 3VA1225-1AA42-0AC0 switch disconnector, 250 A, 4-pole, 690 VAC, IP40 front. Active production. Sourced to order against RFQ.","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","title":"3VA1225-1AA42-0AC0","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","description":"switch disconnector 3VA1 IEC frame 250 4-pole SD100, In=250A without overload protection w/o short-circuit protection nut keeper kit 2 auxiliary switches HQ","Trip Indicator":"No","Number Of Poles":"4","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Switch disconnector","Undervoltage Release":"No","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":"Without auxiliary release","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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/36fabaf594e2a76934a52ee593052077.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=569266&mlfb=3VA1225-1AA42-0AC0"},"ai":{"faq":[{"question":"Does 3VA1225-1AA42-0AC0 have a built-in trip unit?","answer":"No. It is a switch disconnector only — no overload protection, no short-circuit protection. Upstream protection is required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-1AA42-0AC0","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/3VA1225-1AA42-0AC0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}