{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-5EF36-0CH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-5EF36-0CH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-5EF36-0CH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5EF36-0CH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA1 IEC frame 160 MCCB, breaking capacity class M, 55kA @ 415V, 3-pole, TM240 line protection, In=125A, Ir=88-125A, Ii=5-10xIn, clamp connection, UVR 120-127V AC, 2 aux HQ + 1 trip alarm HQ.","salesMarkdown":"The Siemens 3VA1112-5EF36-0CH0 is a 3-pole IEC molded-case circuit breaker in the 3VA1 series, frame size 160, with a 125 A thermal-magnetic trip unit (TM240). The overload protection band is adjustable from 88 A to 125 A via the Ir dial, and the instantaneous short-circuit pickup (Ii) is set between 5 and 10 times In, so you can dial it in for motor starts or transformer inrush. ## Built-in undervoltage release and auxiliary switching This breaker ships with an undervoltage release (UVR) rated 120–127 V AC, 50/60 Hz — it drops the trip mechanism if control voltage falls below the dropout threshold, which is standard for emergency-stop chains or mains-monitoring circuits. The clamp-type terminals accept copper or aluminum conductors up to the frame rating.","metaTitle":"Siemens 3VA1112-5EF36-0CH0 Circuit Breaker, 125A, 55kA @ 415","metaDescription":"Siemens 3VA1112-5EF36-0CH0 IEC frame 160 MCCB, 125A, Icu=55kA @ 415V, TM240, UVR 120-127V AC, 2 aux + 1 alarm. Active 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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=29065&mlfb=3VA1112-5EF36-0CH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5EF36-0CH0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of 3VA1112-5EF36-0CH0?","answer":"IEC frame 160, 3-pole, breaking capacity class M with Icu=55kA @ 415V AC. Thermal-magnetic trip TM240, In=125A, overload Ir adjustable 88-125A, short-circuit Ii adjustable 5-10xIn. Includes UVR 120-127V AC, 2 auxiliary switches HQ, 1 trip alarm switch HQ, clamp connection."},{"question":"Where can I buy 3VA1112-5EF36-0CH0?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm quote."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-5EF36-0CH0","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/3VA1112-5EF36-0CH0 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}}