{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2225-4HM42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2225-4HM42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2225-4HM42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2225-4HM42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA series molded case circuit breaker, 3VA2225-4HM42-0AA0, 250 A, 4-pole, ETU330 electronic trip unit, line protection.","salesMarkdown":"## Integrator's spec recap — 3VA2225-4HM42-0AA0 The Siemens SENTRON 3VA2225-4HM42-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated for 250 A continuous current at 40 °C, with an ETU330 electronic trip unit for line protection. Its interrupting capacity hits 121 kA at 240 V, tapering to 75.6 kA at 415 V and 440 V, 52.5 kA at 500 V, and 4.5 kA at 690 V — so it handles high-fault utility feeds and transformer secondaries where the available fault current is substantial. The 250 A rating holds flat through 50 °C; above that it derates to 241 A at 55 °C, 232 A at 60 °C, 222 A at 65 °C, and 213 A at 70 °C. The ETU330 is an electronic overcurrent release with adjustable N-conductor protection (OFF, 50%, 100%) and ground-fault monitoring via summation current formation on the L+N conductor. Dimensions are 140 mm wide, 181 mm high, 86 mm deep — a standard 4-pole MCCB footprint for the SENTRON 3VA platform. The 86 mm depth (3.39 in) is the projection behind the panel face; factor that into enclosure depth when routing busbars or cables behind the breaker.","metaTitle":"Siemens 3VA2225-4HM42-0AA0 SENTRON MCCB, 250 A, 4-Pole, ETU3","metaDescription":"Siemens SENTRON 3VA2225-4HM42-0AA0 molded case circuit breaker, 250 A, 4-pole, ETU330 electronic trip unit. Rated 121 kA at 240 V. Current lifecycle. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"86 mm","Width":"140 mm","title":"3VA2225-4HM42-0AA0","Height":"181 mm","at 240 V":"121 kA","at 415 V":"75.6 kA","at 440 V":"75.6 kA","at 500 V":"52.5 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","description":"circuit breaker 3VA2 IEC frame 250 breaking capacity class S Icu=36kA @ 415V 4-pole, line protection ETU330, LIG, In=250A overload protection Ir=100A...250A short-circuit protection Ii=1.5...12 x In N conductor protection adjustable (OFF, 50%, 100%) ground-fault protection Ig=0.2...1 x In= tg=0.1/0.3s nut keeper kit","Trip Indicator":"No","Number Of Poles":"4","Product version":"Line protection","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","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","rated insulation voltage Ui":"800 V","Courant permanent assigné Iu":"250 A","Ground-Fault Monitoring Version":"Summation current formation L + N conductor","Design Of The Overcurrent Release":"ETU330","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 50%; 100%","reference code / acc. to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Adjustable response value current / lg max.":"250 A","Adjustable response value current / lg min.":"50 A","Adjustable response value current / li max.":"2 500 A","Adjustable response value current / li min.":"375 A","Neutral conductors / upgradeable/retrofittable":"No","Protection Function Of The Overcurrent Release":"LIG","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"S","Max. rated operational current of the frame size":"250 A","Mechanical Service Life (Switching 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","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"13 x 1 mm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"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=281848&mlfb=3VA2225-4HM42-0AA0"},"ai":{"faq":[{"question":"Where can I buy 3VA2225-4HM42-0AA0 and get a price?","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 is the interrupting rating of 3VA2225-4HM42-0AA0 at 240 V?","answer":"It is rated 121 kA at 240 V, dropping to 75.6 kA at 415 V and 440 V, 52.5 kA at 500 V, and 4.5 kA at 690 V."},{"question":"What trip unit does this MCCB use?","answer":"It uses the ETU330 electronic overcurrent release with adjustable N-conductor protection and ground-fault monitoring via summation current formation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2225-4HM42-0AA0","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/3VA2225-4HM42-0AA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}