{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-1AA32-0JC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-1AA32-0JC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-1AA32-0JC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-1AA32-0JC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON, switch disconnector, 3VA1225-1AA32-0JC0, 3-pole, 250 A, 690 V AC / 500 V DC, shunt trip STL 110-127 V DC/AC, 2 auxiliary switches HQ, busbar connection, front terminal, IP40 front.","salesMarkdown":"The Siemens SENTRON 3VA1225-1AA32-0JC0 is a 3-pole switch disconnector in the SD100 variant of the 3VA IEC frame, rated for a continuous current Iu of 250 A. It provides visible isolation for a circuit under load — no overcurrent or short-circuit protection built in, so it serves as a main disconnect or maintenance isolation point where the upstream breaker handles fault clearing. The 250 A continuous rating matches a 250 A frame, sized for feeder or large-motor disconnect duty. The unit carries a short-time withstand of 3 kA for 1 s — that's the fault current it must survive closed until the upstream protective device clears. For a switch disconnector, this rating governs the maximum available fault current at its line side. ## Auxiliary and trip options — shunt trip and 2 HQ aux switches The shunt trip is wired separately from the main power path; energizing it trips the mechanism. Two HQ auxiliary switches (form C, 2 CO contacts) provide status feedback — closed/ open position signals back to the control system. The HQ designation indicates a high-qualified switch rated for control-circuit reliability. No undervoltage release is fitted on this order code. If the application requires a UVR (trip on power loss), a different variant or a field-installable accessory is needed. The unit also supports an optional motor drive (product extension optional yes) for remote motorized operation — useful in automated disconnects. ## Integration into the panel — dimensions, connection, environment The 3VA1225-1AA32-0JC0 occupies a 105 mm width, 158 mm height, and 70 mm depth on the panel face — a 3-pole frame that fits standard SENTRON mounting footprints. Main circuit connection is via busbar connection at the front terminal, meaning the line and load conductors land on busbars that bolt to the front of the disconnect. This is typical for main-switch applications where the busbar runs across multiple disconnects or feeds a distribution block. Front protection is IP40. Maximum power loss is 57 W. In a typical line-disconnect role cycled once per shift, this translates to decades of service. For frequent switching under load, consult the electrical endurance curve in the device manual. ## Lifecycle and sourcing reality — current production, quoted to order The part is specified into the BOM as a Siemens SENTRON switch disconnector, and the order code uniquely identifies the shunt-trip voltage and auxiliary switch configuration.","metaTitle":"Siemens 3VA1225-1AA32-0JC0 SENTRON Switch Disconnector, 250","metaDescription":"Siemens SENTRON 3VA1225-1AA32-0JC0 switch disconnector, 250 A, 3-pole, 690 V AC / 500 V DC, shunt trip, 2 HQ aux switches. IP40 front. Current production. 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":"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=569259&mlfb=3VA1225-1AA32-0JC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-1AA32-0JC0/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source — 3VA1110-5EE32-0JA0?","answer":"The 3VA1110-5EE32-0JA0 is a molded-case circuit breaker (line protection), not a switch disconnector. It carries a 100 A frame with overcurrent release (TM220) and lacks the 250 A continuous rating. It will not drop into the same panel without rewiring — different width (76.2 mm vs 105 mm) and different connection type (lug terminal vs busbar). The correct replacement is the 3VA1225-1AA32-0JC0 itself."},{"question":"Will 3VA1225-1AA32-0JC0 drop into a panel that was specified around 3VA1110-5EE32-0JA0 without rewiring?","answer":"No. The 3VA1225-1AA32-0JC0 is 105 mm wide vs 76.2 mm for the 3VA1110-5EE32-0JA0, and uses busbar connection (front terminal) vs lug terminal. The mounting hole pattern, busbar arrangement, and conductor terminations are different — rewiring and possibly a new mounting plate are required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-1AA32-0JC0","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/3VA1225-1AA32-0JC0 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}}