{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2225-5KP42-0DK0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2225-5KP42-0DK0","canonicalUrl":"https://aoctrl.com/siemens/3VA2225-5KP42-0DK0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2225-5KP42-0DK0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA2 IEC frame 250 circuit breaker, breaking capacity class M, Icu=55kA @ 415V, 4-pole, line protection ETU850, LSI, In=250A, overload protection Ir=100A...250A, short-circuit protection Isd=0.6..10x In, Ii=1.5..10x In, N conductor protection adjustable, undervoltage release 208-230V AC, auxiliary and alarm switches.","salesMarkdown":"The Siemens 3VA2225-5KP42-0DK0 is a 4-pole IEC molded-case circuit breaker on the 250 A frame, built for line protection with an ETU850 electronic trip unit. The 55 kA interrupting rating at 415 V (class M) means it clears high-fault currents in a main distribution panel or large motor control center without needing an upstream current-limiting fuse — that's the kind of SCCR headroom a site electrical engineer wants for a 400 V bus with transformer-fed fault levels. The ETU850 provides LSI protection: long-time pickup adjustable 100 A to 250 A (Ir), short-time pickup 0.6 to 10× In, and instantaneous pickup 1.5 to 10× In. The neutral conductor protection is adjustable from OFF up to 100% of phase pickup, which matters for 4-wire systems where the neutral carries harmonic currents. An undervoltage release (UVR) rated 208–230 V AC 50/60 Hz is integrated — if the control voltage drops, the breaker trips, preventing automatic reclosure on a lost utility feed. The UVR coil voltage (208–230 V AC) is common for North American 208Y/120 V or 240 V delta control circuits; verify compatibility with your panel's control transformer tap. Mounts on a standard DIN rail or panel-mount baseplate — the 3VA2 frame is sized for 250 A continuous, so plan for M10 or similar bolted busbar connections on the line and load terminals. The UVR coil draws continuous power when the breaker is closed; if the control supply is switched separately, interlock it so the UVR cannot be energized with the breaker open and the trip mechanism unlatched.","metaTitle":"Siemens 3VA2225-5KP42-0DK0 Circuit Breaker, 250A, 55kA @ 415","metaDescription":"Siemens 3VA2225-5KP42-0DK0 IEC frame 250 circuit breaker, breaking capacity class M, Icu=55kA @ 415V, 4-pole, ETU850 LSI protection, In=250A. Sourced 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/6a7c0d29262bf1366bc093fc9653b1e6.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=604379&mlfb=3VA2225-5KP42-0DK0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2225-5KP42-0DK0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2225-5KP42-0DK0 and 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 your target quantity and delivery window."},{"question":"What are the key ratings of this Siemens 3VA2 breaker?","answer":"The breaker is rated 250 A continuous (In) on a 4-pole IEC frame, with an interrupting capacity of 55 kA at 415 V (class M). The ETU850 trip unit provides LSI protection: Ir adjustable 100–250 A, Isd 0.6–10× In, Ii 1.5–10× In, and neutral protection adjustable OFF to 100%."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2225-5KP42-0DK0","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/3VA2225-5KP42-0DK0 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}}