{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2225-5HN42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2225-5HN42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2225-5HN42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2225-5HN42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2225-5HN42-0AA0, molded case circuit breaker, 4-pole, 250 A, ETU350 electronic trip unit, line protection, 187 kA interrupting at 240 V AC.","salesMarkdown":"Its 250 A continuous rating (at 40 °C) and 4-pole construction make it a main or feeder breaker for 3-phase + neutral systems up to 800 V insulation class. This breaker carries a 187 kA interrupting rating at 240 V AC, dropping to 121 kA at 415/440 V, 75.6 kA at 500 V, and 4.5 kA at 690 V. At 415 V (common European industrial voltage), the 121 kA rating still covers most high-fault installations. ## Thermal derating — the real-world current you can run Rated 250 A continuous at up to 50 °C ambient. Above that, the breaker derates linearly: 241 A at 55 °C, 232 A at 60 °C, 222 A at 65 °C, and 213 A at 70 °C. If your panel internal ambient hits 60 °C (common in a tightly packed enclosure with solar or drive heat), you lose 18 A of headroom. Plan your load at the derated figure, not the nameplate 250 A. The 140 mm width for a 4-pole frame is standard for this class — it occupies the same footprint as other 3VA2 frame breakers, so a panel laid out for a 3VA2 250 A frame accepts this unit without re-drilling the mounting plate. Maximum power dissipation is 48 W at rated load; factor that into your enclosure thermal calculation. ## What is not on this breaker It is a straight line-protection breaker with the ETU350 trip unit. If you need ground-fault alarm or shunt trip, you need a different suffix on the 3VA2 order code.","metaTitle":"Siemens 3VA2225-5HN42-0AA0 SENTRON MCCB, 250A, 4P, ETU350","metaDescription":"Siemens 3VA2225-5HN42-0AA0 SENTRON molded case circuit breaker, 250A continuous, 4-pole, ETU350 trip unit. Interrupting capacity 187kA at 240V. Active production. Sourced to order","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"86 mm","Width":"140 mm","Height":"181 mm","Maximum":"2 500 A","Minimum":"2 500 A","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"75.6 kA","at 690 V":"4.5 kA","at 40 °C":"250 A","at 45 °C":"250 A","at 50 °C":"250 A","at 55 °C":"241 A","at 60 °C":"232 A","at 65 °C":"222 A","at 70 °C":"213 A","Depth [In]":"3.39 in","Width [In]":"5.51 in","Height [In]":"7.13 in","Trip Indicator":"No","Number Of Poles":"4","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"48 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Ground-Fault Monitoring Version":"Without","Continuous Current / Rated Value":"250 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU350","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 50%; 100%","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","reference code / according to IEC 81346-2":"Q","Continuous Current / Rated Value / Maximum":"250 A","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LSI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"M","Mechanical Service Life (Operating Cycles) / Typical":"25 000","Type Of Electrical Connection / For Main Current Circuit":"on both sides nut keeper kit","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$594.36","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/6a7c0d29262bf1366bc093fc9653b1e6.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=295074&mlfb=3VA2225-5HN42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2225-5HN42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of 3VA2225-5HN42-0AA0 at 240 V?","answer":"187 kA at 240 V AC. At 415 V it is 121 kA, at 500 V it is 75.6 kA, and at 690 V it is 4.5 kA."},{"question":"Where can I buy 3VA2225-5HN42-0AA0 and how is it quoted?","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":"What trip unit does 3VA2225-5HN42-0AA0 use?","answer":"The ETU350 electronic trip unit, which provides adjustable overload and short-circuit protection curves."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2225-5HN42-0AA0","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/3VA2225-5HN42-0AA0 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}}