{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2440-7MQ32-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2440-7MQ32-0AB0","canonicalUrl":"https://aoctrl.com/siemens/3VA2440-7MQ32-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2440-7MQ32-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA2 IEC frame 630, breaking capacity class C, 3-pole motor protection circuit breaker with ETU860M LSIG trip unit, In=400A, Icu=110kA @ 415V.","salesMarkdown":"## Motor protection breaker with ETU860M LSIG trip unit The Siemens 3VA2440-7MQ32-0AB0 is a 3-pole circuit breaker on the IEC 60947-2 frame 630 platform, rated for motor protection with a class C breaking capacity of 110 kA at 415 V. The ETU860M electronic trip unit provides LSIG protection — long-time (overload), short-time, instantaneous, and ground-fault — with a nominal rating of 400 A. Overload protection Ir is adjustable from 160 A to 400 A; short-circuit protection Isd spans 1.2 to 15 times In, and instantaneous Ii ranges 3 to 15 times In. Ground-fault protection Ig can be switched off or set from 0.2 to 1 times In with a time delay tg of 0.05 to 0.8 seconds. ## Integration notes for panel builders The ETU860M trip unit draws its power from the line-side current transformers — no external control power required for the protection functions. The two auxiliary switches (1 NO + 1 NC each) are wired via the front-accessible terminals; verify the wiring diagram for the specific switch position (left/right) before commissioning. The nut keeper kit retains the busbar connection hardware, which is useful for high-vibration environments such as motor control centers near large drives.","metaTitle":"Siemens 3VA2440-7MQ32-0AB0 Circuit Breaker, 400A, 110kA @ 41","metaDescription":"Siemens 3VA2440-7MQ32-0AB0 IEC frame 630 motor protection circuit breaker, 3-pole, ETU860M LSIG, 400A, 110kA @ 415V. Current lifecycle stage. Sourced 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=1034798&mlfb=3VA2440-7MQ32-0AB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2440-7MQ32-0AB0/alternatives.json"},"ai":{"faq":[{"question":"How do I get pricing and availability for 3VA2440-7MQ32-0AB0?","answer":"The 3VA2440-7MQ32-0AB0 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What are the key protection settings on the ETU860M for this breaker?","answer":"The ETU860M provides LSIG protection: Ir adjustable 160–400 A (overload), Isd 1.2–15x In (short-time), Ii 3–15x In (instantaneous), and Ig 0.2–1x In with tg 0.05–0.8 s (ground-fault, can be switched off)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2440-7MQ32-0AB0","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/3VA2440-7MQ32-0AB0 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}}