{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-6MH36-0CC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-6MH36-0CC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-6MH36-0CC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-6MH36-0CC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA1 IEC frame 160 circuit breaker, breaking capacity class H, Icu=70kA @ 415V, 3-pole, starter protection TM120M, In=125A, Ii=5...15 x In, clamp connection, undervoltage release 120-127V AC, 2 auxiliary switches HQ.","salesMarkdown":"The Siemens 3VA1112-6MH36-0CC0 is a 3-pole IEC frame 160 circuit breaker from the 3VA1 series, rated at 125 A with a breaking capacity class H — Icu=70kA @ 415V. This puts it squarely in the high-interrupting category for industrial panel feeders and motor branch circuits where fault currents can exceed 50 kA. The TM120M thermal-magnetic release provides starter protection (motor branch-circuit protection per IEC 60947-4-1), with an adjustable magnetic trip Ii=5...15 x In, meaning you can set instantaneous pickup between 625 A and 1875 A to coordinate with downstream contactors and overload relays. For a 125 A feeder on a 415 V distribution board with transformer impedance giving a prospective fault current in that range, this breaker clears it without cascading upstream. The class H designation (70 kA) is the highest in the 3VA1 frame 160 lineup; standard class N (36 kA) and class S (50 kA) siblings exist if your SCCR study shows lower fault levels. Note the description states 'without overload protection short-circuit protection' — this variant ships with the TM release configured for magnetic (short-circuit) only; the thermal overload function is present but the breaker is ordered without the overload protection function enabled, intended for use with a separate overload relay downstream. The adjustable Ii=5...15 x In gives flexibility to coordinate with the motor locked-rotor current. When voltage drops below about 70% of rated, the UVR trips the breaker open — standard for applications where a motor must not auto-restart after a power dip. Two auxiliary switches (HQ — high-qualified, meaning high-reliability contacts) provide status feedback to the PLC or annunciator panel. ## Deployment context The 3VA1 frame 160 is a standard panel-building component — its footprint matches Siemens's SENTRON line, so it integrates into existing busbar systems and enclosure cutouts without modification. The UVR and aux switches are factory-installed, reducing field wiring time.","metaTitle":"Siemens 3VA1112-6MH36-0CC0 Circuit Breaker, 70kA @ 415V, 125","metaDescription":"Siemens 3VA1112-6MH36-0CC0 IEC frame 160 circuit breaker, breaking capacity class H Icu=70kA @ 415V, 3-pole, starter protection TM120M, In=125A, Ii=5-15xIn, UVR 120-127V AC, 2 aux","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=303507&mlfb=3VA1112-6MH36-0CC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-6MH36-0CC0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this breaker?","answer":"The breaking capacity class H gives Icu=70kA @ 415V, suitable for high-fault industrial distribution."},{"question":"What does the TM120M release mean?","answer":"TM120M is a thermal-magnetic release with starter protection characteristics, rated 125 A, with adjustable magnetic trip Ii=5...15 x In. This variant is configured for short-circuit protection only (no overload protection) and is intended for use with a separate overload relay."},{"question":"Where can I buy 3VA1112-6MH36-0CC0 and get current pricing?","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."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-6MH36-0CC0","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/3VA1112-6MH36-0CC0 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}}