{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-1AA32-0AE0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-1AA32-0AE0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-1AA32-0AE0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-1AA32-0AE0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-1AA32-0AE0, switch disconnector in MCCB design, 3-pole, IEC frame 160, In=125 A, without overload or short-circuit protection, 4 auxiliary switches HQ, busbar connection, front terminals.","salesMarkdown":"## Switch disconnector, 125 A — no overload trip, no short-circuit trip It is designed without overload or short-circuit protection — meaning it functions purely as a load-break disconnect for isolation and switching, not as a circuit breaker. The 125 A rating is the maximum uninterrupted current the main contacts can carry under normal operation. Rated insulation voltage is 800 V, with a maximum AC operational voltage of 690 V at 50/60 Hz and a maximum DC operational voltage of 500 V. The unit can withstand a short-time current of 2 kA for 1 second and 2 kA for 0.5 seconds — enough to ride through downstream faults without welding the contacts, provided upstream protection clears the fault within that window. ## Mounting and connection — busbar feed, front terminals Main circuit connection is via busbar connection with front terminal arrangement — the busbars land on the front face, not the rear. This suits panel layouts where the disconnect is fed from a horizontal busbar system running across the top of the enclosure. The unit accepts an optional motor drive (product extension optional), allowing remote motorized operation for applications where the disconnect must be cycled from a control room or automation system.","metaTitle":"Siemens SENTRON 3VA1112-1AA32-0AE0 Switch Disconnector, 125","metaDescription":"Siemens SENTRON 3VA1112-1AA32-0AE0 switch disconnector, 125 A rated continuous current, 3-pole, IEC frame 160. Busbar connection, front terminals, 4 HQ auxiliary switches. Active p","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":"No","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":"4 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":"Without auxiliary release","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":"4","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=505801&mlfb=3VA1112-1AA32-0AE0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-1AA32-0AE0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1112-1AA32-0AE0?","answer":"Pricing and availability are confirmed at quote time against an RFQ. Submit a request through the storefront for a current quote with lead time."},{"question":"What is 3VA1112-1AA32-0AE0's rated continuous current?","answer":"The rated continuous current Iu is 125 A, making it suitable for disconnecting loads up to that current under normal operating conditions."},{"question":"Does this switch disconnector provide overload or short-circuit protection?","answer":"No — it is designed without overload protection and without short-circuit protection. It functions solely as a disconnect switch for isolation and load breaking. Upstream protection devices must be provided separately."},{"question":"What auxiliary contacts does this unit include?","answer":"It comes with 4 high-quality (HQ) auxiliary switches, providing 4 CO (changeover) contacts for status signaling."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-1AA32-0AE0","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/3VA1112-1AA32-0AE0 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}}