{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-5EF42-0BA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-5EF42-0BA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-5EF42-0BA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-5EF42-0BA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1225-5EF42-0BA0, molded case circuit breaker, 4-pole, TM240 thermal-magnetic release, 250 A rated current at 40 °C, line protection design, with undervoltage release.","salesMarkdown":"## Interrupting capacity and coordination This MCCB delivers 187 kA interrupting capacity at 240 V, stepping down to 121 kA at 415 V, 75.6 kA at 440 V, 30 kA at 500 V, and 17 kA at 690 V. The rated insulation voltage is 800 V, so the breaker is suitable for 480/277 V and 600/347 V systems with headroom. The 250 A rating holds from 40 °C through 50 °C, then derates to 243 A at 55 °C, 237 A at 60 °C, 230 A at 65 °C, and 223 A at 70 °C. Maximum power loss is 59.5 W — a factor for enclosure heat rise calculations when grouping multiple breakers. The 4-pole body at 140 mm width occupies four standard 35 mm DIN-rail module spaces (each pole ~35 mm).","metaTitle":"Siemens 3VA1225-5EF42-0BA0 SENTRON MCCB, 250 A, 4-Pole, TM24","metaDescription":"Siemens SENTRON 3VA1225-5EF42-0BA0 molded case circuit breaker, 250 A at 40 °C, 4-pole, TM240 release, 187 kA at 240 V. Active production. Quoted 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","Maximum":"0 A","Minimum":"0 A","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"75.6 kA","at 500 V":"30 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 A","at 60 °C":"237 A","at 65 °C":"230 A","at 70 °C":"223 A","Depth [In]":"2.76 in","Width [In]":"5.51 in","Height [In]":"6.22 in","Trip Indicator":"No","Number Of Poles":"4","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"Yes","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"59.5 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA12255EF420AA0","Design Of The Auxiliary Release":"undervoltage release (UVR)","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","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","Of The Integrated Auxiliary Trip Unit":"3VA9608-0BB11","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"600 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"M","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"nut keeper kit on both ends","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal"}},"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=568692&mlfb=3VA1225-5EF42-0BA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-5EF42-0BA0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1225-5EF42-0BA0?","answer":"Submit an RFQ through this listing. Pricing and stock are confirmed at quote time through independent distribution channels; no online price is published."},{"question":"What are the mounting dimensions of 3VA1225-5EF42-0BA0?","answer":"Width is 140 mm, height is 158 mm, depth is 70 mm. The 4-pole body occupies four DIN-rail module spaces."},{"question":"Will 3VA1225-5EF42-0BA0 drop into a panel specified around 3VA1112-5EE32-0AA0?","answer":"No — the 3VA1112-5EE32-0AA0 is a 3-pole, lower-current frame. The 4-pole 3VA1225-5EF42-0BA0 is wider (140 mm vs the 3-pole width) and has a different mounting footprint. Panel busbar and DIN-rail layout would need rework."},{"question":"What compliance documentation does Siemens provide for 3VA1225-5EF42-0BA0?","answer":"Siemens SENTRON MCCBs carry UL 489, CSA C22.2 No. 5, and IEC 60947-2 certifications. RoHS and REACH declarations are available from Siemens Industry Online Support. The rated insulation voltage of 800 V and interrupting ratings across the voltage range confirm IEC 60947-2 compliance."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-5EF42-0BA0","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/3VA1225-5EF42-0BA0 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}}