{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2450-5HK32-0KK0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2450-5HK32-0KK0","canonicalUrl":"https://aoctrl.com/siemens/3VA2450-5HK32-0KK0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2450-5HK32-0KK0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA2 IEC frame 630, breaking capacity class M, Icu=55kA @ 415V, 3-pole, line protection ETU340 ELISA LI, In=500A, overload Ir=200-500A, short-circuit Ii=14xIn, shunt trip left 208-277V AC / 220-250V DC, 1 auxiliary switch.","salesMarkdown":"## High-fault MCCB with integrated shunt trip The ETU340 electronic trip unit with ELISA LI characteristic gives adjustable overload protection (Ir = 200–500 A) and a fixed short-circuit pickup of 14 × In. That 14× multiplier means instantaneous trip at 7000 A for the 500 A rating — a deliberate coordination band for motor-starting inrush or transformer energization. ## Factory-fitted accessories This unit ships with a left-side shunt trip rated 208–277 V AC 50/60 Hz and 220–250 V DC, plus one auxiliary switch (changeover). The shunt trip lets a remote relay or safety PLC open the breaker without a manual handle pull — common in emergency-stop chains or undervoltage release schemes. The auxiliary switch reports breaker position back to the control system. The nut keeper kit (included per the description) retains the lug nuts during high-vibration busbar connections — a detail that saves a panel-builder chasing dropped hardware inside a live board.","metaTitle":"Siemens 3VA2450-5HK32-0KK0 Circuit Breaker, 55kA @ 415V, 500","metaDescription":"Siemens 3VA2 IEC frame 630 MCCB, Icu=55kA @ 415V, 3-pole, ETU340 LI trip, Ir=200-500A, Ii=14xIn, shunt trip + aux switch. Active production, 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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1437124&mlfb=3VA2450-5HK32-0KK0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2450-5HK32-0KK0/alternatives.json"},"ai":{"faq":[{"question":"What accessories are included on this breaker?","answer":"A left-side shunt trip rated 208–277 V AC / 220–250 V DC and one auxiliary changeover switch are factory-installed. The nut keeper kit is also included for secure busbar lug retention."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2450-5HK32-0KK0","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/3VA2450-5HK32-0KK0 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}}