{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-1AA32-0HH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-1AA32-0HH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-1AA32-0HH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-1AA32-0HH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1225-1AA32-0HH0, switch disconnector in MCCB design, 3-pole, 250 A, IP40 front, shunt trip (STL) 12-30V DC / 24V AC, 2 auxiliary switches + 1 trip alarm switch HQ, busbar connection.","salesMarkdown":"The 3VA1225-1AA32-0HH0: The 250 A rating holds flat from 40 °C to 50 °C, then derates to 243 A at 55 °C, 237 A at 60 °C, 230 A at 65 °C, and 223 A at 70 °C. For a panel that runs at 55 °C ambient, the usable continuous current is 243 A — not the full 250 A. The shunt trip (STL) release accepts 12–30 V DC or 24 V AC 50/60 Hz, which is the typical trip signal from a safety relay or PLC digital output. As a switch disconnector in MCCB design, this part isolates and disconnects loads in distribution panels, motor control centers, and industrial switchboards. It provides visible isolation for safe maintenance — no overload or short-circuit protection built in, so it pairs with an upstream protective device. ## Integration notes Dimensions: 105 mm wide, 158 mm high, 70 mm deep. The 70 mm depth is shallower than many MCCB-form disconnectors — relevant for shallow enclosures or retrofit into existing panel layouts. Main circuit connection is via busbar connection with front terminals, typical for panel-mounted distribution. Mechanical service life is 15,000 operating cycles typical. Maximum power loss is 57 W at rated current — account for this in enclosure thermal calculations if the disconnector is enclosed with other heat sources.","metaTitle":"Siemens 3VA1225-1AA32-0HH0 SENTRON Switch Disconnector, 250A","metaDescription":"Siemens SENTRON 3VA1225-1AA32-0HH0 switch disconnector, 250A, 3-pole, MCCB design. Shunt trip STL 12-30V DC / 24V AC. IP40 front. Active 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":"105 mm","Height":"158 mm","at 40 °C":"250 A","at 45 °C":"250 A","at 50 °C":"250 A","at 55 °C":"243 A","at 60 °C":"237 A","at 65 °C":"230 A","at 70 °C":"223 A","Trip Indicator":"Yes","Number Of Poles":"3","Voltage Trigger":"Yes","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Switch disconnector","Undervoltage Release":"No","Design Of The Product":"in MCCB design","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"57 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Design Of The Auxiliary Switch":"2 auxiliary switches + 1 trip alarm switch HQ","Design Of The Auxiliary Release":"Shunt trip (STL)","Insulation Voltage / Rated Value":"800 V","protection class IP / on the front":"IP40","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"500 V","Product Function / Communication Function":"No","Undervoltage Release With Leading Contact":"No","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","number of CO contacts / for auxiliary contacts":"3","Mechanical Service Life (Operating Cycles) / Typical":"15 000","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=569257&mlfb=3VA1225-1AA32-0HH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-1AA32-0HH0/alternatives.json"},"ai":{"faq":[{"question":"What is the shunt trip voltage range on this switch disconnector?","answer":"The shunt trip (STL) accepts 12–30 V DC or 24 V AC 50/60 Hz."},{"question":"Where can I buy 3VA1225-1AA32-0HH0?","answer":"Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-1AA32-0HH0","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/3VA1225-1AA32-0HH0 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}}