{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2440-7MN32-0AL0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2440-7MN32-0AL0","canonicalUrl":"https://aoctrl.com/siemens/3VA2440-7MN32-0AL0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2440-7MN32-0AL0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA2 IEC frame 630 MCCB, 3-pole, 400 A, breaking capacity class C Icu=110 kA @ 415 V, ETU350M LSI electronic trip unit for motor protection, with 2 auxiliary switch changeover contacts and 1 trip alarm switch changeover.","salesMarkdown":"## Motor protection MCCB with ETU350M LSI trip The Siemens 3VA2440-7MN32-0AL0 is a 3-pole IEC frame 630 molded case circuit breaker rated 400 A continuous, built around the ETU350M electronic trip unit with LSI protection — long-time (Ir), short-time (Isd), and instantaneous (Ii). Overload protection Ir is adjustable from 160 A to 400 A; short-circuit protection Isd adjusts 3 to 15 × Ir, and the instantaneous pickup Ii is fixed at 15 × In. ## Built-in auxiliary and alarm switching Factory-fitted with 2 changeover auxiliary switches (H configuration) and 1 changeover trip alarm switch. That covers remote status indication for the closed/tripped state and a separate alarm contact that closes only on a fault trip — useful for feeding a PLC digital input or a panel beacon without adding external interposing relays. The nut keeper kit on the terminals simplifies panel wiring: the captive nut stays aligned during torque-down, a small time-saver on a multi-breaker lineup.","metaTitle":"Siemens 3VA2440-7MN32-0AL0 Circuit Breaker, 400A, 110kA @ 41","metaDescription":"Siemens 3VA2440-7MN32-0AL0 IEC frame 630 MCCB, 3-pole, 400A, Icu=110kA @ 415V, ETU350M LSI trip, motor protection. Current lifecycle. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/0eb36652ce522f093395d6bd0dd27e34.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1438256&mlfb=3VA2440-7MN32-0AL0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2440-7MN32-0AL0/alternatives.json"},"ai":{"faq":[{"question":"What does the ETU350M LSI trip unit protect against?","answer":"The ETU350M provides long-time (Ir) overload protection adjustable 160–400 A, short-time (Isd) short-circuit protection adjustable 3–15 × Ir, and a fixed instantaneous (Ii) pickup at 15 × In — covering motor starting inrush and downstream fault coordination."},{"question":"What auxiliary contacts come fitted on this breaker?","answer":"It ships with 2 changeover auxiliary switches (H configuration) and 1 changeover trip alarm switch, all factory-installed."},{"question":"Where can I buy 3VA2440-7MN32-0AL0 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commercial offer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2440-7MN32-0AL0","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/3VA2440-7MN32-0AL0 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}}