{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-1AA42-0JH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-1AA42-0JH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-1AA42-0JH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-1AA42-0JH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-1AA42-0JH0, switch disconnector IEC frame 160, 4-pole SD100, In=125 A, without overload or short-circuit protection, shunt trip 110-127 V DC/AC, 2 auxiliary switches HQ + 1 trip alarm switch HQ.","salesMarkdown":"The 125 A continuous rating (Iu) means this disconnect will carry full motor or resistive load current without derating up to 40 °C ambient — above that, you'll need to consult the thermal derating curve in the 3VA manual. It ships with front terminals for busbar connection, so it lands directly on a busbar stack in the panel — no lug kits needed. The 70 mm depth and 101.6 mm width fit the standard SENTRON 4-pole footprint, so it swaps into an existing 3VA cutout without re-drilling the mounting plate.","metaTitle":"Siemens 3VA1112-1AA42-0JH0 SENTRON Switch Disconnector, 125","metaDescription":"Siemens SENTRON 3VA1112-1AA42-0JH0 switch disconnector, 125 A rated continuous current, 4-pole, shunt trip 110-127 V DC/AC, 2 aux + 1 alarm switch. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"101.6 mm","Height":"130 mm","Limited To 1 S":"2 kA","Trip indicator":"Yes","Number of poles":"4","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 + 1 trip alarm switch 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":"600 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Number of CO contacts / for auxiliary contacts":"3","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"busbar 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=63655&mlfb=3VA1112-1AA42-0JH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-1AA42-0JH0/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between 3VA1112-1AA42-0JH0 and 3VA1110-5EE32-0JA0?","answer":"The 3VA1110-5EE32-0JA0 is a 3-pole molded-case circuit breaker with thermal-magnetic overcurrent protection (TM220) rated at 100 A, while the 3VA1112-1AA42-0JH0 is a 4-pole switch disconnector with no overcurrent protection, rated at 125 A. They share the same frame 160 mechanical platform and 70 mm depth, but the breaker includes a full protective release and the disconnect does not — they are not functional substitutes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-1AA42-0JH0","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/3VA1112-1AA42-0JH0 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}}