{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-1AA36-0DA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-1AA36-0DA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-1AA36-0DA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-1AA36-0DA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-1AA36-0DA0, switch disconnector in MCCB design, IEC frame 160, 3-pole, In=125 A, without overload or short-circuit protection, undervoltage release 208-230 V AC 50/60 Hz, front terminal connection.","salesMarkdown":"It is built as a pure disconnect device: no overload release, no short-circuit protection. That makes it a load-break switch for isolating a circuit under load, not a circuit breaker. Rated continuous current Iu = 125 A is the maximum current the switch can carry continuously without exceeding thermal limits. That is the number you size against your load current. The rated insulation voltage Ui = 800 V and the maximum operational voltage with AC 50/60 Hz = 690 V tell you the switch can be used in 400 V or 690 V industrial networks — common in European and IEC-style panels. With DC, the max operational voltage is 500 V, so it also works in DC bus or battery circuits up to that voltage. The 2 kA limited short-time withstand (1 s and 0.5 s) means the switch can hold closed under fault current for that duration while an upstream breaker clears — coordination matters. The 3VA1112-1AA36-0DA0 is a DIN-rail-mount device (width 76.2 mm, depth 70 mm, height 130 mm) — standard for enclosure mounting. Front terminal connection for the main circuit, so busbars or cable lugs land on the front face. The optional motor drive (product extension available) allows remote switching via a motor operator.","metaTitle":"Siemens 3VA1112-1AA36-0DA0 Switch Disconnector 125A 3-Pole,","metaDescription":"Siemens SENTRON 3VA1112-1AA36-0DA0 switch disconnector, 125 A rated continuous current, 3-pole, IEC frame 160, undervoltage release 208-230 V AC. Sourced 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","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":"Yes","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":"Undervoltage release (UVR)","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":"0","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"Terminal 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=178727&mlfb=3VA1112-1AA36-0DA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-1AA36-0DA0/alternatives.json"},"ai":{"faq":[{"question":"What is 3VA1112-1AA36-0DA0 used for?","answer":"It is a switch disconnector used to isolate a 3-phase load (up to 125 A) under load or no-load conditions. The undervoltage release makes it suitable for safety circuits that must drop power on loss of control voltage."},{"question":"Where can I buy 3VA1112-1AA36-0DA0?","answer":"It is sourced to order through independent distribution. Submit an RFQ for current availability and pricing — availability and lead time are confirmed at quote time."},{"question":"Will 3VA1112-1AA36-0DA0 drop into a panel specified for 3VA1112-5EF32-0CA0?","answer":"The physical footprint is identical: same depth (70 mm), width (76.2 mm), height (130 mm), and front terminal arrangement. The difference is functional — 3VA1112-5EF32-0CA0 is a line-protection MCCB with overcurrent and short-circuit release; this part is a switch disconnector without those protections. You can swap the hardware, but the panel's protection coordination must be re-evaluated."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-1AA36-0DA0","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/3VA1112-1AA36-0DA0 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}}