{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-1AA42-0DH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-1AA42-0DH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-1AA42-0DH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-1AA42-0DH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1225-1AA42-0DH0, switch disconnector in MCCB design, 4-pole, rated continuous current 250 A, with undervoltage release 208-230 V AC 50/60 Hz, 2 auxiliary switches + 1 trip alarm switch HQ, busbar connection front terminal.","salesMarkdown":"It provides no overload or short-circuit protection — it's a disconnect-only device, meant for isolating a circuit under load or for use as a main switch where downstream protection handles the fault clearing. Rated operational voltage is 690 V AC (50/60 Hz) and 600 V DC, with an insulation voltage (Ui) of 800 V. That puts it solidly in the 400 V / 480 V industrial panel range, with headroom for 690 V systems. The built-in undervoltage release (UVR) operates on 208-230 V AC 50/60 Hz. If control voltage drops, the UVR trips the disconnector open — a common safety requirement for motor circuits or emergency-stop chains where loss of control power should drop the load. Dimensions are 140 mm wide, 158 mm high, 70 mm deep. The main circuit connects via busbar connection at the front terminals — typical for panel-mount MCCB-style disconnectors on a busbar system. The trip alarm signals when the disconnector has opened due to a fault or UVR trip — useful for remote status monitoring on a PLC input.","metaTitle":"Siemens SENTRON 3VA1225-1AA42-0DH0 Switch Disconnector, 250","metaDescription":"Siemens SENTRON 3VA1225-1AA42-0DH0 switch disconnector, 250 A continuous, 4-pole, in MCCB design with undervoltage release (208-230 V AC). Current production. Available to order ag","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","Limited To 1 S":"3 kA","Trip indicator":"Yes","Number of poles":"4","Product version":"in MCCB design","Voltage trigger":"No","lifecycle_stage":"current","Limited To 0.5 S":"3 kA","Product brand name":"SENTRON","Product designation":"Switch disconnector","Latching - endurance":"15 000","Undervoltage Release":"Yes","Communication Function":"No","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","Rated continuous current Iu":"250 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"Undervoltage release (UVR)","Protection class IP / on the front":"IP40","Reference code / acc. to DIN EN 81346-2":"Q","Max. rated operational voltage Ue with DC":"600 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Number of CO contacts / for auxiliary contacts":"3","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","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=569281&mlfb=3VA1225-1AA42-0DH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-1AA42-0DH0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1225-1AA42-0DH0?","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":"Will 3VA1225-1AA42-0DH0 drop into a panel that was specified around 5SQ2670-2YA63 without rewiring?","answer":"No — the 5SQ2670-2YA63 is a 63 A MCB (miniature circuit breaker) with IP20 and a different form factor (55 mm depth, DIN-rail mount). The 3VA1225-1AA42-0DH0 is a 250 A MCCB-style switch disconnector with busbar front terminals and IP40. They are not mechanically or electrically interchangeable."},{"question":"What compliance documentation does this brand provide for 3VA1225-1AA42-0DH0?","answer":"The SENTRON series from Siemens typically carries CE, UL, CSA, and IEC certifications. Specific documentation (RoHS, REACH, UL, IEC) should be confirmed at quote time with the supplier."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-1AA42-0DH0","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/3VA1225-1AA42-0DH0 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}}