{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-1AA32-0CA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-1AA32-0CA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-1AA32-0CA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-1AA32-0CA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1225-1AA32-0CA0, switch disconnector in MCCB design, IEC frame 250, 3-pole, In=250 A, without overload or short-circuit protection, with undervoltage release 120-127 V AC 50/60 Hz, busbar connection, IP40 front.","salesMarkdown":"The Siemens SENTRON 3VA1225-1AA32-0CA0 is a 3-pole switch disconnector in an MCCB-style housing, rated for 250 A continuous current (Iu) and designed for isolation and switching without overload or short-circuit protection — it's a pure disconnect, not a circuit breaker. Rated insulation voltage is 800 V, with maximum operational voltage 690 V AC and 500 V DC. The unit includes a factory-fitted undervoltage release (UVR) rated for 120–127 V AC 50/60 Hz, which automatically opens the disconnector when control voltage drops — typical for emergency-stop or safety circuits where loss of control power must isolate the load. The 250 A rated continuous current (Iu) sets the maximum uninterrupted load it can carry without overheating — sized for main feeders or large motor branch circuits in distribution panels. Short-time withstand ratings of 3 kA at both 0.5 s and 1 s mean it can survive a fault current of that magnitude for those durations without damage, but it does not interrupt faults — upstream overcurrent protection must clear the fault. Maximum power loss of 57 W at rated current matters for thermal management inside an enclosed panel — factor this into ventilation or derating if multiple units are ganged. Measures 105 mm wide, 158 mm high, and 70 mm deep — standard MCCB footprint for a 250 A frame, mounts via the front terminals with busbar connection for the main circuit. No auxiliary contacts are included (0 CO contacts), and no communication function is built in — it's a standalone disconnect; add external aux contacts or a motor drive (optional extension available) if remote status or remote switching is needed. Operating temperature range is -25 °C to +70 °C, storage from -40 °C to +80 °C — suitable for most indoor industrial environments without special climate control.","metaTitle":"Siemens SENTRON 3VA1225-1AA32-0CA0 Switch Disconnector, 250","metaDescription":"Siemens SENTRON 3VA1225-1AA32-0CA0 switch disconnector, 250 A rated current, 3-pole, IP40 front, includes undervoltage release 120-127 V AC. Current lifecycle stage, sourced to ord","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":"No","lifecycle_stage":"current","Limited To 0.5 S":"3 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":"57 W","Auxiliary contact version":"Without","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":"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":"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=569249&mlfb=3VA1225-1AA32-0CA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-1AA32-0CA0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-1AA32-0CA0","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/3VA1225-1AA32-0CA0 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}}