{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-1AA36-0JC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-1AA36-0JC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-1AA36-0JC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-1AA36-0JC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA series, switch disconnector in MCCB design, 3-pole, In=125 A, without overload or short-circuit protection, shunt trip (STL) 110-127 V DC/AC, 2 auxiliary switches HQ, front terminal connection, IP40 front.","salesMarkdown":"The Siemens SENTRON 3VA1112-1AA36-0JC0 is a 3-pole switch disconnector in MCCB design, rated for 125 A continuous current (Iu) and up to 690 V AC / 500 V DC operational voltage. The front-terminal clamp connection suits panel wiring where the disconnector is the isolation point rather than a protective device. At 125 A continuous and 690 V AC, this switch disconnector handles motor loads, transformer primaries, or distribution feeders within its frame rating. The absence of overload or short-circuit protection means it is intended as a load-break isolator — upstream protection (a fuse or MCCB) must cover fault interruption. The shunt trip allows remote emergency-off or undervoltage tripping; it operates on 110–127 V DC or AC 50/60 Hz, so verify control voltage matches the coil rating. Dimensions are 70 mm deep, 76.2 mm wide, 130 mm tall — a standard 3-pole MCCB footprint that fits most DIN-rail or panel-mount enclosures. Maximum power loss of 38 W at full load should be factored into enclosure thermal calculations, especially in sealed cabinets.","metaTitle":"Siemens SENTRON 3VA1112-1AA36-0JC0 Switch Disconnector, 125","metaDescription":"Siemens SENTRON 3VA1112-1AA36-0JC0 IEC switch disconnector, 125 A, 3-pole, shunt trip 110-127 V DC/AC, 2 HQ aux switches, IP40 front. Current lifecycle stage; sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"76.2 mm","Height":"130 mm","Limited To 1 S":"2 kA","Trip indicator":"No","Number of poles":"3","Product version":"in MCCB design","Voltage trigger":"Yes","lifecycle_stage":"current","Limited To 0.5 S":"2 kA","Product brand name":"SENTRON","Product designation":"Switch disconnector","Latching - endurance":"15 000","Undervoltage Release":"No","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"38 W","Auxiliary contact version":"2 auxiliary switches HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Rated continuous current Iu":"125 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"Shunt trip (STL)","Protection class IP / on the front":"IP40","Reference code / acc. to DIN EN 81346-2":"Q","Max. rated operational voltage Ue with DC":"500 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Number of CO contacts / for auxiliary contacts":"2","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"Terminal connection","Arrangement of electrical connectors / for main current circuit":"Front terminal"}},"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=338159&mlfb=3VA1112-1AA36-0JC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-1AA36-0JC0/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source to 3VA1112-1AA36-0JC0?","answer":"The 3VA1110-5EE32-0JA0 is a similar SENTRON 3-pole device on the same 160 A frame, but it is a molded case circuit breaker with a TM220 thermal-magnetic release and 100 A rating — it provides overload and short-circuit protection, which this switch disconnector lacks. The 3VA1112-1AA36-0JC0 is a pure isolator with shunt trip and aux switches; the 3VA1110-5EE32-0JA0 includes a trip unit. They share the same footprint (70 x 76.2 x 130 mm) and front-terminal layout, so a panel designed for the breaker can accept the switch disconnector without rewiring, but the protective function differs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-1AA36-0JC0","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/3VA1112-1AA36-0JC0 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}}