{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-6EF42-0BA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-6EF42-0BA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-6EF42-0BA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-6EF42-0BA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1225-6EF42-0BA0, molded case circuit breaker (MCCB), 250 A, 4-pole, TM240 thermal-magnetic trip, line protection design, with undervoltage release.","salesMarkdown":"The Siemens 3VA1225-6EF42-0BA0 is a SENTRON molded case circuit breaker rated 250 A continuous at 40 °C through 50 °C, then derating to 223 A at 70 °C. That thermal curve means the breaker holds full load at typical panel ambient; only above 55 °C does the TM240 trip unit start backing off. For a 4-pole line-protection device, the interrupting ratings span 220 kA at 240 V down to 17 kA at 690 V — so the SCCR headroom is there for high-fault commercial mains, but the 690 V tier is the one to check if you're feeding a 480 V or 600 V distribution bus. ## Integration — panel fit and release options","metaTitle":"Siemens 3VA1225-6EF42-0BA0 SENTRON MCCB, 250A, 4P, TM240","metaDescription":"Siemens SENTRON 3VA1225-6EF42-0BA0 molded case circuit breaker, 250 A rated at 40°C, 4-pole, TM240 thermal-magnetic trip. 220 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":"220 kA","at 415 V":"154 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":"3VA12256EF420AA0","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":"H","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=568838&mlfb=3VA1225-6EF42-0BA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-6EF42-0BA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1225-6EF42-0BA0 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm number."},{"question":"Will 3VA1225-6EF42-0BA0 drop into a panel that was specified around 3VA1110-5ED36-0AC0 without rewiring?","answer":"Both are SENTRON 3VA frame MCCBs sharing the same 140 x 158 x 70 mm footprint, so the physical cutout and mounting pattern are identical. The difference is rating: the 3VA1225 carries 250 A continuous versus a lower frame on the 3VA1110. No busbar or lug relocation needed if the feeder conductors are sized for 250 A."},{"question":"What is 3VA1225-6EF42-0BA0's listed depth?","answer":"70 mm (2.76 in) — standard for the 3VA frame depth."},{"question":"What compliance documentation does this brand provide for 3VA1225-6EF42-0BA0?","answer":"As a Siemens SENTRON MCCB, the standard documentation package includes the manufacturer's declaration of conformity to IEC 60947-2, plus RoHS and REACH compliance statements. UL and CSA listings are typical for the 3VA series, though the specific agency marks for this order code should be confirmed from the nameplate or the manufacturer's certificate."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-6EF42-0BA0","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/3VA1225-6EF42-0BA0 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}}