{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-1AA32-0CA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-1AA32-0CA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-1AA32-0CA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-1AA32-0CA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-1AA32-0CA0, switch disconnector in MCCB design, 3-pole, 125 A, IEC frame 160, undervoltage release 120-127V AC 50/60Hz, busbar connection, front terminal.","salesMarkdown":"That matters in a hot panel or a packed enclosure where the temperature climb is baked into the design. If control power drops, the UVR trips the disconnect open — standard for safety circuits that need to guarantee a load is isolated when the control voltage fails. No auxiliary contacts are fitted (0 CO contacts), and the auxiliary switch design is listed as \"without.\". ## Physical fit and connection pattern The main circuit connection is busbar-style, front-terminal arrangement. This is a disconnect-only variant (no trip unit, no short-circuit protection). If your BOM line needs a 125 A 3-pole disconnect with a UVR in a 3VA frame, this is the exact order code.","metaTitle":"Siemens 3VA1112-1AA32-0CA0 SENTRON Switch Disconnector, 125","metaDescription":"Siemens SENTRON 3VA1112-1AA32-0CA0 switch disconnector, 125 A continuous, 3-pole, IEC frame 160. Undervoltage release 120-127V AC. Current lifecycle. Quoted 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","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","Trip Indicator":"No","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Switch disconnector","Undervoltage Release":"Yes","Design Of The Product":"in MCCB design","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"38 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Design Of The Auxiliary Switch":"Without","Design Of The Auxiliary Release":"Undervoltage release (UVR)","Insulation Voltage / Rated Value":"800 V","protection class IP / on the front":"IP40","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"500 V","Product Function / Communication Function":"No","Undervoltage Release With Leading Contact":"No","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","number of CO contacts / for auxiliary contacts":"0","Mechanical Service Life (Operating 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=351459&mlfb=3VA1112-1AA32-0CA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-1AA32-0CA0/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source for 3VA1112-1AA32-0CA0?","answer":"The closest functional sibling is 3VA1112-5EF32-0CA0, which shares the same frame, same 125 A rating, and the same UVR option, but it is a full molded case circuit breaker with a TM240 thermal-magnetic trip — it provides overcurrent and short-circuit protection that this disconnect-only part does not. If you need a disconnect without protection, stick with this order code."},{"question":"Will 3VA1112-1AA32-0CA0 drop into a panel specified around 3VA1112-5EF32-0CA0 without rewiring?","answer":"The physical footprint is identical — 70 mm deep, 76.2 mm wide, 130 mm tall — so it fits the same panel cutout and DIN-rail or screw-mount pattern. However, the connection method differs: this part uses busbar connection (front terminal), while the peer uses lug terminal. If the panel wiring is terminated in lugs, you will need to adapt to busbar connections."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-1AA32-0CA0","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/3VA1112-1AA32-0CA0 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}}