{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2125-7KQ32-0DG0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2125-7KQ32-0DG0","canonicalUrl":"https://aoctrl.com/siemens/3VA2125-7KQ32-0DG0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2125-7KQ32-0DG0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA2 IEC frame 160, breaking capacity class C, Icu=110kA @ 415V, 3-pole, line protection ETU860, LSIG, In=25A, overload Ir=10A..25A, short-circuit Isd=0.6..10x In, Ii=1.5..12x In, ground-fault Ig=0.2..1x In, tg=0.05-0.8s, undervoltage release 208-230V AC, 1 aux switch, 1 trip alarm.","salesMarkdown":"The Siemens 3VA2125-7KQ32-0DG0 is a 3-pole IEC frame 160 molded-case circuit breaker with a 110 kA interrupting rating at 415 VAC — breaking capacity class C, which means it handles high-fault-current industrial feeds without cascading upstream. The ETU860 electronic trip unit provides full LSIG protection (long-time, short-time, instantaneous, ground fault), adjustable over a wide band: overload Ir from 10 A to 25 A, short-time pickup Isd from 0.6 to 10× In, instantaneous Ii from 1.5 to 12× In, and ground-fault pickup Ig from 0.2 to 1× In with time delay tg from 0.05 to 0.8 s. For most industrial distribution panels fed from a 1 MVA transformer, that's enough headroom to avoid series-rating tricks. The LSIG trip unit gives you selectivity coordination with downstream feeders: the adjustable short-time delay (0.05–0.8 s) lets a downstream breaker clear a bolted fault first, keeping this main breaker closed for service continuity. It drops the breaker on loss of control voltage — standard for motor control centers where you want automatic shutdown on undervoltage.","metaTitle":"Siemens 3VA2125-7KQ32-0DG0 Circuit Breaker, 110kA @ 415V, 25","metaDescription":"Siemens 3VA2125-7KQ32-0DG0 IEC frame 160 circuit breaker, 3-pole, 110kA breaking capacity at 415V, ETU860 LSIG protection, 25A. Current production. Available 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/641a6843e8dc2f758bb6426196efa871.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=525262&mlfb=3VA2125-7KQ32-0DG0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2125-7KQ32-0DG0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this breaker?","answer":"The ultimate breaking capacity Icu is 110 kA at 415 V AC, breaking capacity class C."},{"question":"Where can I buy 3VA2125-7KQ32-0DG0?","answer":"This part is available to order through independent distribution. Submit an RFQ for current pricing and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2125-7KQ32-0DG0","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/3VA2125-7KQ32-0DG0 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}}