{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-1AA32-0DC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-1AA32-0DC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-1AA32-0DC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-1AA32-0DC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-1AA32-0DC0, switch disconnector in MCCB design, 3-pole, In=125 A, with undervoltage release (UVR) 208-230 V AC, 2 auxiliary switches HQ, busbar connection front terminal.","salesMarkdown":"It carries an undervoltage release (UVR) for 208-230 V AC 50/60 Hz, plus two HQ auxiliary switches. This is not a circuit breaker — no overload or short-circuit protection is built in. It is a disconnect-only device for isolation and switching under load, meeting the requirements of a switch disconnector per its designation. Rated continuous current Iu is 125 A — this is the current the disconnector carries continuously without exceeding temperature limits. The 160 A frame means the internal contacts and busbars are sized for that larger frame; the 125 A rating is a factory-set limit. Short-time withstand: the disconnector is rated for 2 kA at both 1 s and 0.5 s limited duration. That is not a breaking capacity — it is the fault current the device can carry closed without damage during the upstream protective device's clearing time. For a switch disconnector, this figure governs coordination with the upstream breaker or fuse. ## Physical integration and environment The 76.2 mm width (3 inches) is the standard 3-pole MCCB footprint for the 160 A frame — it fits the same panel cutouts and busbar risers as other SENTRON 3VA1 devices. No lug terminals — plan for busbar or fork-type connectors. The enclosure or panel must provide the environmental seal. Maximum power loss is 38 W — account for this heat in enclosed panel thermal calculations.","metaTitle":"Siemens 3VA1112-1AA32-0DC0 Switch Disconnector, 125 A, 3-Pol","metaDescription":"Siemens SENTRON 3VA1112-1AA32-0DC0 switch disconnector, 125 A rated continuous current, 3-pole, with undervoltage release 208-230V AC. Current production. 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","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":"2 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":"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":"2","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=325068&mlfb=3VA1112-1AA32-0DC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-1AA32-0DC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1112-1AA32-0DC0 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-1AA32-0DC0","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/3VA1112-1AA32-0DC0 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}}