{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-1AA42-0AH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-1AA42-0AH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-1AA42-0AH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-1AA42-0AH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1225-1AA42-0AH0, switch disconnector in MCCB design, 4-pole, In=250 A, without overload or short-circuit protection, busbar connection, front terminal, IP40 front, 2 auxiliary switches + 1 trip alarm switch HQ.","salesMarkdown":"## Switch Disconnector for Isolation and Disconnect Duty It is built for isolation and disconnect applications where overload and short-circuit protection are handled upstream or by separate devices — per the product description, it carries no overload or short-circuit protection elements. The rated insulation voltage Ui is 800 V, with a maximum operational voltage of 690 V AC 50/60 Hz and 600 V DC. The front face is IP40 rated, suitable for installation in a panel with a sealed enclosure. The 250 A rated continuous current (Iu) means this disconnector is sized for a 250 A feeder or load circuit — typical for a large motor control centre, a distribution sub-feed, or a main disconnect on a machine. The busbar connection on the front terminals is designed for direct bolting to busbar systems, common in switchgear and panelboard installations. The disconnector occupies a 140 mm width, 158 mm height, and 70 mm depth footprint — these dimensions are for the MCCB-style housing, which mounts via the front panel cut-out or a dedicated mounting plate (not DIN rail). The busbar connection on the front terminals requires busbar drilling and bolt torque per Siemens installation instructions. The maximum power loss of 57 W at rated current should be factored into the panel thermal budget.","metaTitle":"Siemens 3VA1225-1AA42-0AH0 SENTRON Switch Disconnector, 250","metaDescription":"Siemens SENTRON 3VA1225-1AA42-0AH0 switch disconnector, 250 A rated continuous current, 4-pole, 690 V AC / 600 V DC. Current lifecycle stage. 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","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":"No","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":"Without auxiliary release","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=569271&mlfb=3VA1225-1AA42-0AH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-1AA42-0AH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1225-1AA42-0AH0 and how do I get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is the depth of 3VA1225-1AA42-0AH0?","answer":"The depth is 70 mm."},{"question":"What is the width of 3VA1225-1AA42-0AH0?","answer":"The width is 140 mm."},{"question":"What compliance documentation does this brand provide for 3VA1225-1AA42-0AH0?","answer":"As a Siemens SENTRON product, standard compliance documentation includes RoHS, REACH, and IEC 60947-3 (switch-disconnector) declarations. The evidence does not list specific UL or CSA certifications for this variant; verify with the manufacturer for project-specific requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-1AA42-0AH0","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/3VA1225-1AA42-0AH0 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}}