{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-6EF42-0AF0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-6EF42-0AF0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-6EF42-0AF0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-6EF42-0AF0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1225-6EF42-0AF0, molded case circuit breaker, 4-pole, 250 A rated continuous current, breaking capacity 220 kA at 240 V, 154 kA at 415 V, line protection version with TM240 thermal-magnetic release.","salesMarkdown":"The TM240 thermal-magnetic release handles the overload and short-circuit curve, so you get fixed-trip protection without a separate trip unit to configure. The 250 A rating holds flat from 40 °C to 50 °C, then derates to 243.3 A at 55 °C, 236.5 A at 60 °C, 229 A at 65 °C, and 223 A at 70 °C. If your panel ambient sits at 55 °C, you lose about 7 A of headroom — still enough for a 240 A continuous load, but the derating curve is what you check before committing the BOM line. At 140 mm wide, 158 mm tall, and 70 mm deep, it fits a standard MCCB slot in a SENTRON distribution panel; the IP40 front rating means it's protected against solid objects over 1 mm, but not sealed against dust ingress — fine for a clean indoor switchboard, not for a washdown environment.","metaTitle":"Siemens 3VA1225-6EF42-0AF0 SENTRON MCCB, 250 A, 4-Pole, 220","metaDescription":"Siemens SENTRON 3VA1225-6EF42-0AF0 molded case circuit breaker, 250 A rated, 4-pole, breaking capacity 220 kA at 240 V. Active production, sourced 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 240 V":"220 kA","at 415 V":"154 kA","at 440 V":"36 kA","at 690 V":"17 kA","at 40 °C":"250 A","at 45 °C":"250 A","at 50 °C":"250 A","at 55 °C":"243.3 A","at 60 °C":"236.5 A","at 65 °C":"229 A","at 70 °C":"223 A","Trip indicator":"Yes","Number of poles":"4","Product version":"Line protection","Voltage trigger":"No","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"No","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"1 auxiliary switch + 1 trip alarm switch HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"250 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"without auxiliaryrelease","Ground fault monitoring version":"Without","Design of the overcurrent release":"TM240","Design of short-circuit protection":"For switching power values in DC networks, see the 3VA molded case circuit breaker device manual; link to be found under Service & Support in the last chapter","Protection class IP / on the front":"IP40","Design of the N-conductor protection":"Without","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"1","Adjustable response value time / tr min.":"1","Max. rated operational voltage Ue with DC":"600 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"250 A","Adjustable response value current / li max.":"2 500 A","Adjustable response value current / li min.":"1 250 A","Adjustable response value current / lr min.":"175 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"2","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching capacity class of the circuit breaker":"H","Max. rated operational current of the frame size":"250 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"lug terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"25 x 8","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"13 x 1"}},"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=568834&mlfb=3VA1225-6EF42-0AF0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-6EF42-0AF0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1225-6EF42-0AF0 and how do I get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a request for quotation to get current pricing and availability confirmed at quote time."},{"question":"What is 3VA1225-6EF42-0AF0's listed depth (70 mm) on this component line?","answer":"The depth is 70 mm, with a width of 140 mm and a height of 158 mm. These dimensions match the standard SENTRON MCCB footprint for panel integration."},{"question":"Will 3VA1225-6EF42-0AF0 drop into a panel that was specified around 3VA1010-4ED32-0AC0 without rewiring?","answer":"The 3VA1225-6EF42-0AF0 is a 4-pole, 250 A MCCB with a TM240 release and built-in auxiliary/trip alarm contacts, while the 3VA1010-4ED32-0AC0 is a different rating and configuration. Panel fit depends on the specific mounting kit and busbar arrangement; verify the physical footprint and terminal spacing against your existing panel layout before ordering."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-6EF42-0AF0","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/3VA1225-6EF42-0AF0 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}}