{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2440-5MQ32-0AF0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2440-5MQ32-0AF0","canonicalUrl":"https://aoctrl.com/siemens/3VA2440-5MQ32-0AF0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2440-5MQ32-0AF0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA2 IEC frame 630, breaking capacity class M, Icu=55kA @ 415V, 3-pole, motor protection ETU860M, LSIG, In=400A, overload protection Ir=160A...400A, short-circuit protection Isd=1.2..15x In, Ii=3..15x In, ground-fault protection Ig=0.2...1 x In, tg=0.05-0.8s, 1 AUXILIARY SWITCH CHANGEOVER H, 1 TRIP ALARM SWITCH CHANGEOVER.","salesMarkdown":"## Motor protection breaker with ETU860M LSIG trip unit The Siemens 3VA2440-5MQ32-0AF0 is a 3-pole IEC frame 630 circuit breaker in breaking capacity class M, rated Icu=55kA at 415 V. It carries the ETU860M electronic trip unit with LSIG protection — overload (L), short-time (S), instantaneous (I), and ground-fault (G) — and is configured for motor protection duty. The In rating is 400 A, with overload protection adjustable Ir=160 A to 400 A, short-circuit protection Isd=1.2 to 15 x In, and Ii=3 to 15 x In. Ground-fault protection can be switched off, with Ig adjustable 0.2 to 1 x In and tg=0.05 to 0.8 s. The breaker includes one auxiliary switch changeover H and one trip alarm switch changeover. The ETU860M LSIG trip unit gives you selective coordination capability: the L (long-time) element protects the motor against overload, S (short-time) allows delayed tripping for downstream selectivity, I (instantaneous) clears hard faults, and G (ground-fault) detects leakage to earth. The adjustable ground-fault delay (tg) from 0.05 to 0.8 s lets you coordinate with downstream GFCI devices or upstream feeder breakers. This is a panel-mount breaker sized for the IEC frame 630 footprint — verify the mounting cradle and busbar connection pattern match your existing switchboard or MCC bucket.","metaTitle":"Siemens 3VA2440-5MQ32-0AF0 Circuit Breaker, 55kA @ 415V, 400","metaDescription":"Siemens 3VA2440-5MQ32-0AF0 IEC frame 630 motor protection circuit breaker, 55kA Icu @ 415V, ETU860M LSIG, In=400A. Current lifecycle stage. Available to order against RFQ.","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=1401102&mlfb=3VA2440-5MQ32-0AF0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2440-5MQ32-0AF0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2440-5MQ32-0AF0?","answer":"This part is sourced and quoted 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 estimate."},{"question":"What does the ETU860M LSIG trip unit protect against?","answer":"The ETU860M provides LSIG protection: L (long-time overload) for motor thermal protection, S (short-time) for selective coordination, I (instantaneous) for hard short circuits, and G (ground-fault) for leakage to earth. The ground-fault element can be switched off and has adjustable pickup (Ig) and delay (tg)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2440-5MQ32-0AF0","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/3VA2440-5MQ32-0AF0 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}}