{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-1AA36-0BA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-1AA36-0BA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-1AA36-0BA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-1AA36-0BA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1 IEC frame 160, switch disconnector SD100, 3-pole, 125 A, without overload or short-circuit protection, undervoltage release 24V DC, front terminal connection.","salesMarkdown":"The Siemens 3VA1112-1AA36-0BA0 is a SENTRON 3VA1 switch disconnector in MCCB design, IEC frame 160, 3-pole, rated 125 A continuous current (Iu). It is a pure disconnecting means — no overload or short-circuit protection built in. The part carries an undervoltage release (UVR) at 24V DC, so it drops the load if control power fails. Rated insulation voltage is 800 V, max AC operational voltage 690 V 50/60 Hz, max DC operational voltage 500 V. This is a switch disconnector, not a circuit breaker; it isolates a load under no-load or low-load conditions. The 38 W max power loss at rated current matters for enclosure thermal budgeting, especially in a sealed panel. The undervoltage release (UVR) at 24V DC is wired into the control circuit. If the 24V supply drops below the dropout threshold, the switch trips open — useful for emergency-stop chains or power-loss disconnection where you want automatic isolation on control-power failure. No auxiliary contacts are fitted, so you cannot signal the switch position back to a PLC without adding an external auxiliary switch block. The 3VA1 frame is a standard MCCB footprint: 70 mm deep, 76.2 mm wide, 130 mm tall. Front terminal connection for the main circuit — lug terminals accept cable lugs. The 3-pole unit fits the same cutout as a 3-pole MCCB, so it drops into a panel designed for a 3VA1 breaker without rewiring the bus bars.","metaTitle":"Siemens 3VA1112-1AA36-0BA0 Switch Disconnector, 125 A, 3-Pol","metaDescription":"Siemens SENTRON 3VA1112-1AA36-0BA0 switch disconnector, 125 A rated continuous current, 3-pole, with undervoltage release 24V DC. Current lifecycle stage. Available 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=496966&mlfb=3VA1112-1AA36-0BA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-1AA36-0BA0/alternatives.json"},"ai":{"faq":[{"question":"Will 3VA1112-1AA36-0BA0 drop into a panel specified for 3VA1112-5EF32-0CA0?","answer":"Yes — both parts share the same 3VA1 IEC frame 160, same 70 mm depth, 76.2 mm width, 130 mm height, 3-pole configuration, and front terminal connection. No rewiring or bus-bar changes needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-1AA36-0BA0","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/3VA1112-1AA36-0BA0 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}}