{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-1AA32-0KC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-1AA32-0KC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-1AA32-0KC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-1AA32-0KC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1225-1AA32-0KC0, switch disconnector in MCCB design, 3-pole, In=250 A, with shunt trip (STL) 220-250 V DC / 208-277 V AC, 2 auxiliary switches HQ, busbar connection.","salesMarkdown":"The shunt trip (STL) coil is rated 220-250 V DC or 208-277 V AC, so you can remote-trip it from a safety circuit or E-stop chain. Two HQ auxiliary switches (2 CO contacts) come integrated, giving you feedback contacts for the panel PLC or status lamps without adding a separate aux block. The 250 A rated continuous current (Iu) sets the maximum load it can carry without overheating — sized for a main feeder or large motor branch disconnect. Rated insulation voltage Ui is 800 V, and max operational voltage is 690 V AC (50/60 Hz) or 500 V DC, so it's comfortable on 400 V/480 V panels and can handle DC bus applications up to 500 V. The short-time withstand is 3 kA for both 0.5 s and 1 s — that's the fault current it can survive while upstream protection clears. Not a high-fault-rated device; coordinate with a properly sized upstream breaker or fuse. Power loss is 57 W at full rated current — that's heat that has to be managed inside the enclosure. In a sealed panel with other devices, factor that into your thermal budget. Mounts in a standard enclosure with front terminals for busbar connection. Dimensions: 105 mm wide, 158 mm high, 70 mm deep — that's a 3-pole MCCB footprint, so it'll drop into most panel layouts sized for a 250 A frame. The shunt trip and aux switches are wired to the control circuit; the shunt trip coil draws power only during the trip event, so no continuous load on the 24 V DC supply.","metaTitle":"Siemens 3VA1225-1AA32-0KC0 SENTRON Switch Disconnector, 250","metaDescription":"Siemens SENTRON 3VA1225-1AA32-0KC0 switch disconnector, 250 A rated continuous current, 3-pole, with shunt trip STL 220-250 V DC & 2 HQ aux switches. 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":"105 mm","Height":"158 mm","Limited To 1 S":"3 kA","Trip indicator":"No","Number of poles":"3","Product version":"in MCCB design","Voltage trigger":"Yes","lifecycle_stage":"current","Limited To 0.5 S":"3 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":"57 W","Auxiliary contact version":"2 auxiliary switches HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Rated continuous current Iu":"250 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"Shunt trip (STL)","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=569262&mlfb=3VA1225-1AA32-0KC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-1AA32-0KC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1225-1AA32-0KC0 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution — availability and current pricing are confirmed at quote time."},{"question":"Will 3VA1225-1AA32-0KC0 drop into a panel that was specified around 3VA1110-5EE32-0JA0 without rewiring?","answer":"No — the 3VA1110-5EE32-0JA0 is a 100 A MCCB with lug terminals, while this is a 250 A switch disconnector with busbar connection. The footprint is larger (105 mm vs 76.2 mm wide) and the main circuit connection type is different, so panel rework is required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-1AA32-0KC0","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/3VA1225-1AA32-0KC0 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}}