{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-1AA32-0HA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-1AA32-0HA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-1AA32-0HA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-1AA32-0HA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON, Switch disconnector in MCCB design, 3VA1112-1AA32-0HA0, 3-pole, 125 A, shunt trip (STL), busbar connection, front terminal, IP40 front.","salesMarkdown":"It is a 3-pole device, meaning it switches all three phases simultaneously, and it carries a maximum rated operational voltage of 690 V AC at 50/60 Hz or 500 V DC. The part is designed for busbar connection with front terminals, so it lands directly onto a panel's main distribution bus without extra adapters. The 2 kA limited-time (0.5 s or 1 s) rating tells you the short-time withstand capability; this is a switch disconnector, not a breaker with a high interrupting rating, so it is meant for isolation and load switching, not fault clearing upstream of a breaker. The 690 V AC / 500 V DC max operational voltage covers most industrial distribution voltages, including 400 V and 480 V three-phase systems. The shunt trip release (STL) is included as standard — that is a voltage-triggered remote trip coil that lets a safety circuit or PLC force the disconnect open. No undervoltage release, no auxiliary contacts, and no communication module are fitted on this variant. ## Where it fits — panel integration and environment Front-terminal busbar connection. IP40 front protection.","metaTitle":"Siemens 3VA1112-1AA32-0HA0 SENTRON Switch Disconnector, 125","metaDescription":"Siemens 3VA1112-1AA32-0HA0 SENTRON MCCB-style switch disconnector. Rated 125 A continuous, 3-pole, 690 V AC / 500 V DC. Shunt trip. Busbar connection. Current lifecycle. Sourced to","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","at 40 °C":"125 A","at 45 °C":"125 A","at 50 °C":"125 A","at 55 °C":"125 A","at 60 °C":"125 A","at 65 °C":"125 A","at 70 °C":"125 A","Limited To 1 S":"2 kA","Trip indicator":"No","Number of poles":"3","Product version":"in MCCB design","Voltage trigger":"Yes","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Switch disconnector","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","at AC / limited to 0.5 s / rated value":"2 kA","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":"0","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Mechanical service life (switching cycles) / typical":"15 000","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=462368&mlfb=3VA1112-1AA32-0HA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-1AA32-0HA0/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of 3VA1112-1AA32-0HA0?","answer":"The depth is 70 mm."},{"question":"What is the width of 3VA1112-1AA32-0HA0?","answer":"The width is 76.2 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-1AA32-0HA0","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/3VA1112-1AA32-0HA0 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}}