{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2450-5HK32-0AC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2450-5HK32-0AC0","canonicalUrl":"https://aoctrl.com/siemens/3VA2450-5HK32-0AC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2450-5HK32-0AC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA2 IEC frame 630, 3-pole circuit breaker, breaking capacity class M, Icu=55kA @ 415 V, ETU340 electronic trip unit, In=500 A, overload protection Ir=200…500 A, short-circuit protection Ii=14 x In, busbar connection, 2 auxiliary switches changeover H.","salesMarkdown":"The Siemens 3VA2450-5HK32-0AC0 is a current-production IEC frame 630 molded-case circuit breaker in the 3VA2 series, carrying a 55 kA interrupting rating at 415 V (class M). The ETU340 electronic trip unit gives you adjustable overload protection from 200 A to 500 A and a fixed short-circuit pickup of 14 x In (7 kA at the 500 A rating), which is a deliberate selectivity band for motor feeder or transformer secondary protection. Frame 630 means the physical size and busbar pattern match the 630 A frame — the In rating of 500 A is a trip-unit derate within that frame, so the breaker body and terminals are rated for 630 A continuous. The busbar connection variant (not plug-in or rear-terminal) is the one you want for a fixed-mounted panel where the breaker bolts directly to a busbar stack. Two changeover auxiliary switches (form C) are built in, giving you NO/NC status feedback without adding external aux blocks — handy for remote indication or PLC input without extra wiring. ## Deployment context This is a panel-mounted breaker — it bolts into a switchboard or distribution enclosure on the busbar system, not a snap-on DIN rail mount. The 55 kA class M rating is typical for main or tie breakers in 400 V industrial switchboards where the available fault current sits in the 50–65 kA range. The ETU340 is the standard electronic trip for line protection (cable/feeder protection), not motor protection — no motor-starting curve or ground-fault option in this variant.","metaTitle":"Siemens 3VA2450-5HK32-0AC0 Circuit Breaker, 500A, 55kA @ 415","metaDescription":"Siemens 3VA2450-5HK32-0AC0 circuit breaker, IEC frame 630, class M, Icu=55kA @ 415 V, 3-pole, ETU340, In=500A. Current production. 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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1221957&mlfb=3VA2450-5HK32-0AC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2450-5HK32-0AC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 3VA2450-5HK32-0AC0 and how do I get a price?","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."},{"question":"What is the interrupting rating of the 3VA2450-5HK32-0AC0?","answer":"It has a 55 kA interrupting rating at 415 V AC (breaking capacity class M per IEC 60947-2)."},{"question":"What trip unit does this breaker use?","answer":"It uses the ETU340 electronic trip unit with adjustable overload protection Ir=200…500 A and a fixed short-circuit pickup Ii=14 x In."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2450-5HK32-0AC0","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/3VA2450-5HK32-0AC0 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}}