{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-6GF42-0BC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-6GF42-0BC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-6GF42-0BC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-6GF42-0BC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1225-6GF42-0BC0, 4-pole molded case circuit breaker, line protection, 250 A rated continuous current Iu, TM240 overcurrent release, 220 kA breaking capacity at 240 V, 70 mm depth.","salesMarkdown":"The undervoltage release (UVR) is built in — part 3VA9608-0BB11 for the auxiliary trip — and the auxiliary contact block ships with 2 HQ-form switches. This is the breaker you specify when the panel needs a coordinated 250 A feed with a UVR for safety isolation and the interrupting rating has to cover high-fault utility feeds. ## Breaking capacity — the number that decides the fit This breaker's interrupting rating changes sharply with system voltage. At 240 V it clears 220 kA — that is utility-transformer-level fault current, enough for service-entrance or large sub-feed applications. At 415 V the rating drops to 154 kA, still well above typical industrial secondary-side fault levels. The so-what: if your panel is on a 480 V or 400 V system, the 36 kA or 154 kA figure governs the SCCR coordination study, not the headline 220 kA number. The TM240 release and 250 A continuous rating hold flat through 50 °C; above that the current 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 the ambient inside the enclosure runs above 50 °C, the load must be downsized or the breaker upsized. The 3VA1225-6GF42-0BC0 measures 70 mm deep, 140 mm wide, and 158 mm high. The 4-pole construction covers three-phase plus neutral (100 % N-conductor protection). No trip indicator on the front face, so remote signaling relies on the 2 HQ auxiliary switches.","metaTitle":"Siemens 3VA1225-6GF42-0BC0 SENTRON MCCB, 250 A, 220 kA at 24","metaDescription":"Siemens SENTRON 3VA1225-6GF42-0BC0 molded case circuit breaker, 4-pole, line protection, 250 A rated current, 220 kA breaking capacity 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":"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":"Yes","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"2 auxiliary switches 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":"Undervoltage release (UVR)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9608-0BB11","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":"100%","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":"3VA9988-0AA12","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=568865&mlfb=3VA1225-6GF42-0BC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-6GF42-0BC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 3VA1225-6GF42-0BC0 and get a price?","answer":"This part is sourced to order through independent distribution. Submit an RFQ against this order code; availability and current pricing are confirmed at quote time."},{"question":"What is the breaking capacity of the 3VA1225-6GF42-0BC0 at 415 V?","answer":"At 415 V the breaker clears 154 kA. At 240 V it clears 220 kA, at 440 V it clears 36 kA, and at 690 V it clears 17 kA."},{"question":"Does the 3VA1225-6GF42-0BC0 include an undervoltage release?","answer":"Yes, it is built with an undervoltage release (UVR). The integrated auxiliary trip is part 3VA9608-0BB11. This provides positive trip on loss of control voltage, which is the standard for safety isolation schemes."},{"question":"What compliance documentation is available for this SENTRON MCCB?","answer":"As a Siemens SENTRON product, the 3VA1225-6GF42-0BC0 carries the standard manufacturer documentation including RoHS and REACH declarations, and is designed to meet IEC 60947-2 and UL 489 requirements. Specific certificates are available on request at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-6GF42-0BC0","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/3VA1225-6GF42-0BC0 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}}