{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-1AA42-0HA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-1AA42-0HA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-1AA42-0HA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-1AA42-0HA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-1AA42-0HA0, switch disconnector in MCCB design, 4-pole, rated continuous current Iu=125 A, shunt trip (STL) release, front terminal busbar connection, IP40 front protection.","salesMarkdown":"## Switch disconnector for load-break isolation It is built to provide visible-break isolation and load switching in distribution panels without overcurrent protection — no trip unit, no short-circuit protection, just a reliable disconnect for maintenance and safety isolation. The shunt trip release (STL) operates on 12–30 V DC or 24 V AC, allowing remote trip via a control signal — useful for emergency-off or interlock circuits. Front terminals accept busbar connection, so it integrates directly into a busbar trunking system or panelboard. At 70 mm deep, 101.6 mm wide, and 130 mm tall, it fits the standard 160 A frame footprint. Maximum power loss is 38 W — plan for heat dissipation in a sealed enclosure.","metaTitle":"Siemens SENTRON 3VA1112-1AA42-0HA0 switch disconnector, 125","metaDescription":"Siemens SENTRON 3VA1112-1AA42-0HA0 switch disconnector, 125 A rated continuous current, 4-pole, shunt trip release, current production. 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":"No","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":"Without","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":"0","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=219379&mlfb=3VA1112-1AA42-0HA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-1AA42-0HA0/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source for 3VA1112-1AA42-0HA0?","answer":"The closest functional alternative within the SENTRON family is the 3VA1010-2ED32-0JA0, but it is a 3-pole molded case circuit breaker (line protection) rated 100 A, not a 4-pole switch disconnector. It will not drop into the same panel without rewiring — different pole count and different function."},{"question":"How do I get current pricing and availability for 3VA1112-1AA42-0HA0?","answer":"This part is sourced to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"What is the depth of 3VA1112-1AA42-0HA0?","answer":"The depth is 70 mm."},{"question":"What is the width of 3VA1112-1AA42-0HA0?","answer":"The width is 101.6 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-1AA42-0HA0","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/3VA1112-1AA42-0HA0 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}}