{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-4EF36-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-4EF36-0AB0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-4EF36-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-4EF36-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA1 IEC frame 160, breaking capacity class S, 3-pole, line protection TM240, In=125A, Icu=36kA @ 415V, ATAM, overload Ir=88A…125A, short-circuit Ii=5…10×In, clamp connection, 2 auxiliary switches HP.","salesMarkdown":"The 3VA1112-4EF36-0AB0 is a 3-pole IEC frame 160 molded-case circuit breaker with a 125 A continuous current rating and a 36 kA interrupting capacity at 415 V AC — breaking capacity class S. The thermal-magnetic TM240 trip unit gives adjustable overload protection from 88 A to 125 A via the Ir dial, and the short-circuit magnetic pickup Ii is adjustable from 5 to 10 times In (625 A to 1250 A). This lets you coordinate the breaker with downstream loads and upstream protective devices without swapping trip units. The ATAM designation confirms this is a fixed-thermal, adjustable-magnetic trip — standard for motor branch circuit and feeder protection where you need to set the instantaneous pickup above the motor inrush but still protect the cable. The two built-in auxiliary switches (HP) report open/closed status back to the PLC or DCS, which is useful for SIS loop monitoring in a safety-instrumented function where the breaker position must be confirmed on demand. ## Where this breaker fits in the panel The clamp connection accepts copper or aluminium conductors up to the frame's rated cross-section — no lug kit required for most feeder sizes. The two HP auxiliary switches plug into the breaker's accessory slot and share the same compact footprint, so the overall width stays at 3-pole spacing (about 105 mm). For a retrofit into an existing Siemens 3VA lineup, the mounting and busbar connection pattern is consistent across the frame.","metaTitle":"Siemens 3VA1112-4EF36-0AB0 Circuit Breaker, 125A, 36kA @ 415","metaDescription":"Siemens 3VA1112-4EF36-0AB0 IEC frame 160 circuit breaker, 3-pole, 125A, Icu=36kA @ 415V. Active lifecycle. TM240 overload protection. Sourced to order. Request quote.","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=225291&mlfb=3VA1112-4EF36-0AB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-4EF36-0AB0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 3VA1112-4EF36-0AB0 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit a request for quote; availability and current pricing are confirmed at quote time."},{"question":"What is the breaking capacity of this breaker?","answer":"The 3VA1112-4EF36-0AB0 has a rated ultimate breaking capacity Icu of 36 kA at 415 V AC, which is breaking capacity class S in the 3VA1 IEC frame 160 series."},{"question":"What overload and short-circuit protection settings does the 3VA1112-4EF36-0AB0 offer?","answer":"The TM240 thermal-magnetic trip unit provides adjustable overload protection Ir from 88 A to 125 A, and adjustable short-circuit magnetic pickup Ii from 5 to 10 times In (625 A to 1250 A)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-4EF36-0AB0","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/3VA1112-4EF36-0AB0 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}}