{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-6EF42-0AE0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-6EF42-0AE0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-6EF42-0AE0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-6EF42-0AE0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1225-6EF42-0AE0, molded case circuit breaker, 4-pole, 250 A rated continuous current, 220 kA breaking capacity at 240 V, TM240 thermal-magnetic release, IP40 front protection.","salesMarkdown":"It's built for line protection — think main feeder or large subfeed in a distribution panel — not for motor or generator protection. The thermal-magnetic release (TM240) handles overload and short-circuit tripping without an external trip unit. Breaking capacity hits 220 kA at 240 V, 154 kA at 415 V, 36 kA at 440 V, and 17 kA at 690 V, so it's got headroom for high-fault industrial services where the available short-circuit current is stiff. The 4-pole construction means it switches all phases plus neutral — typical for TN-S or TN-C-S systems where you need full isolation. No undervoltage release, no shunt trip, no ground-fault module fitted from the factory; this is a straight thermal-magnetic breaker. Dimensions are 70 mm deep by 140 mm wide by 158 mm tall — standard 4-pole MCCB footprint for a 250 A frame. Rated continuous current Iu is 250 A, but that's at 40 °C ambient. The 3VA1225-6EF42-0AE0 holds 250 A flat through 50 °C, then starts to taper: 243.3 A at 55 °C, 236.5 A at 60 °C, 229 A at 65 °C, and 223 A at 70 °C. ## What the auxiliary contacts give you The breaker ships with four auxiliary switches (HQ type) already fitted. No separate aux kit to order — it's on the breaker from the factory.","metaTitle":"Siemens 3VA1225-6EF42-0AE0 SENTRON MCCB, 250A, 4-Pole, 220kA","metaDescription":"Siemens 3VA1225-6EF42-0AE0 SENTRON molded case circuit breaker, 250A continuous, 4-pole, 220kA breaking at 240V. Active production. Available to order against RFQ.","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":"No","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"4 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":"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":"4","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=568833&mlfb=3VA1225-6EF42-0AE0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-6EF42-0AE0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1225-6EF42-0AE0?","answer":"Submit an RFQ through this listing. Pricing and lead time are confirmed at quote time against independent distribution channels. No stock or price figures are published here because both fluctuate; a quote locks in the current market."},{"question":"What is the closest functional second-source to 3VA1225-6EF42-0AE0?","answer":"Within the SENTRON family, the 3VA1112-5EF32-0CA0 is a close functional peer — also a 4-pole MCCB with thermal-magnetic release, but at a lower continuous current rating. The 3VA1225-6EF42-0AE0 is the 250 A variant; the 3VA1112-5EF32-0CA0 is a 125 A frame. They share the same basic platform but are not drop-in substitutes without rewiring for the different ampacity."},{"question":"What compliance documentation does Siemens provide for 3VA1225-6EF42-0AE0?","answer":"Siemens SENTRON MCCBs carry IEC 60947-2 certification as standard. RoHS and REACH declarations are available from Siemens' documentation portal. The reference code per DIN EN 81346-2 is Q. For specific UL or CSA listings, verify against the exact variant suffix; this order code's documentation is provided at time of order."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-6EF42-0AE0","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/3VA1225-6EF42-0AE0 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}}