{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-4EF42-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-4EF42-0AB0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-4EF42-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-4EF42-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1225-4EF42-0AB0, molded case circuit breaker, 4-pole, 250 A, line protection, TM240 release, 121 kA at 240 V, 75.6 kA at 415 V.","salesMarkdown":"Its 4-pole construction and line-protection profile make it the primary feeder breaker in a distribution panel or a main disconnect for a motor control center. The interrupting ratings climb to 121 kA at 240 V and 75.6 kA at 415 V — figures that govern its placement in high-fault-current locations like transformer secondaries or large busway taps. At 250 A, the breaker holds its full rating from 40 °C up to 50 °C ambient; above that it derates in steps to 223 A at 70 °C. The 3VA1225-4EF42-0AB0 includes two auxiliary switches (HP type) for remote status feedback. If the application needs a remote trip or a ground-fault alarm, this order code is not the one — the auxiliary release slot is empty and the breaker lacks the internal wiring for those options. It mounts via screw-clamp terminals to a backplate or DIN-rail adapter (not included). Front face carries an IP40 protection rating, suitable for enclosed panel installation where no water jets or dust ingress are expected. The 15000-cycle latching endurance covers the mechanical life; electrical endurance depends on the load type and switching frequency. The 3VA1225-4EF42-0AB0 is designed to meet IEC 60947-2 and UL 489 standards for molded case circuit breakers. The manufacturer provides RoHS and REACH declarations, along with the device manual covering DC-network application notes (referenced in the spec as a separate document).","metaTitle":"Siemens 3VA1225-4EF42-0AB0 SENTRON MCCB, 250 A, 4-Pole, Line","metaDescription":"Siemens 3VA1225-4EF42-0AB0 SENTRON MCCB, 250 A rated continuous current, 4-pole, line protection, 121 kA at 240 V. Available to order; RFQ for pricing and lead time.","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","title":"3VA1225-4EF42-0AB0","Height":"158 mm","at 240 V":"121 kA","at 415 V":"75.6 kA","at 440 V":"25 kA","at 690 V":"11.9 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","description":"circuit breaker 3VA1 IEC frame 250 breaking capacity class S Icu=36kA @ 415V 4-pole, line protection TM240, ATAM, In=250A overload protection Ir=175A...250A short-circuit protection Ii=5...10 x In N conductor unprotected nut keeper kit 2 auxiliary switches HP","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","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":"2 auxiliary switches HP","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":"3VA9988-0AA11","Switching capacity class of the circuit breaker":"S","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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/09471da79874d19e36541f57f46134b6.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=568506&mlfb=3VA1225-4EF42-0AB0"},"ai":{"faq":[{"question":"Who supplies 3VA1225-4EF42-0AB0 and how is it quoted for volume purchases?","answer":"This MCCB is sourced through independent distribution and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time."},{"question":"Will 3VA1225-4EF42-0AB0 drop into a panel specified around 3VA1010-2ED32-0JA0 without rewiring?","answer":"No — the 3VA1225-4EF42-0AB0 is a physically larger frame (140 mm wide vs the 100 A frame) and carries 250 A continuous current versus 100 A. The bus bars, lug sizes, and panel cutout would need to be re-engineered."},{"question":"What compliance documentation does Siemens provide for 3VA1225-4EF42-0AB0?","answer":"RoHS and REACH declarations are available, along with the device manual that includes DC-network application guidance. The breaker is designed to meet IEC 60947-2 and UL 489."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-4EF42-0AB0","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/3VA1225-4EF42-0AB0 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}}