{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-1AA42-0CC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-1AA42-0CC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-1AA42-0CC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-1AA42-0CC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1225-1AA42-0CC0, switch disconnector in MCCB design, IEC frame 250, 4-pole, 250 A, without overload or short-circuit protection, undervoltage release 120-127 V AC 50/60 Hz, busbar connection front terminal.","salesMarkdown":"## Switch Disconnector for Isolation, Not Protection The Siemens SENTRON 3VA1225-1AA42-0CC0 is a 4-pole switch disconnector in an MCCB-style housing, rated 250 A continuous at 40 °C through 50 °C without derating. It is designed for isolation and switching duty only — it carries no overload or short-circuit protection elements, so it functions as a manual disconnect switch, not a circuit breaker. The 250 A continuous rating holds flat from 40 °C to 50 °C; at 55 °C it derates to 243 A, at 60 °C to 237 A, at 65 °C to 230 A, and at 70 °C to 223 A. The front terminal accepts busbar connection only — no cable lugs directly on the switch body. Mechanical service life is 15,000 operating cycles typical, which is adequate for isolation duty but not for frequent switching under load. ## Auxiliary Configuration and Panel Fit This variant ships with two HQ auxiliary switches (2 CO contacts) and an undervoltage release (UVR). The UVR has no leading contact.","metaTitle":"Siemens 3VA1225-1AA42-0CC0 SENTRON Switch Disconnector, 250","metaDescription":"Siemens SENTRON 3VA1225-1AA42-0CC0 switch disconnector, IEC frame 250, 4-pole, 250 A, undervoltage release 120-127 V AC. 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":"140 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":"No","Number Of Poles":"4","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Switch disconnector","Undervoltage Release":"Yes","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 HQ","Design Of The Auxiliary Release":"Undervoltage release (UVR)","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":"600 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":"2","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=569277&mlfb=3VA1225-1AA42-0CC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-1AA42-0CC0/alternatives.json"},"ai":{"faq":[{"question":"Will 3VA1225-1AA42-0CC0 drop into a panel designed for 3VA2225-5HN42-0BB0?","answer":"No. The switch disconnector is 70 mm deep and 158 mm tall versus 86 mm deep and 181 mm tall for the MCCB. Width is the same at 140 mm, but the height and depth differences mean it will not mount in the same cutout without adapter hardware or panel rework."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-1AA42-0CC0","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/3VA1225-1AA42-0CC0 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}}