{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-6EF32-0DA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-6EF32-0DA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-6EF32-0DA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-6EF32-0DA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON, Molded case circuit breaker, 3VA1225-6EF32-0DA0, 3-pole, 250 A at 40 °C, TM240 thermal-magnetic release, 220 kA breaking capacity at 240 V, line protection design with undervoltage release.","salesMarkdown":"Rated 250 A continuously at 40 °C, it holds that full rating through 50 °C before starting a gradual derating — 243 A at 55 °C, 237 A at 60 °C, 230 A at 65 °C, and 223 A at 70 °C — so in a warm panel you still get most of the capacity. Breaking capacity is 220 kA at 240 V, 154 kA at 415 V, 75.6 kA at 440 V, 30 kA at 500 V, and 17 kA at 690 V — enough to clear high-fault scenarios downstream of a large transformer without cascading upstream. ## What the TM240 release and UVR mean for fit The TM240 thermal-magnetic release combines a thermal bimetal for overload protection (inverse-time curve) with a magnetic coil for short-circuit instantaneous trip — no electronic adjustment, so it's a fixed-curve breaker suited to standard feeder or distribution duty where coordination studies are already done. Measures 105 mm wide by 158 mm tall by 70 mm deep — standard SENTRON 3VA form factor for a 250 A frame, mounts on a DIN rail or panel-mount baseplate.","metaTitle":"Siemens 3VA1225-6EF32-0DA0 SENTRON MCCB, 250A, 3-Pole, TM240","metaDescription":"Siemens 3VA1225-6EF32-0DA0 SENTRON molded case circuit breaker, 250A rated at 40°C, 3-pole, TM240 thermal-magnetic release, 220 kA at 240V. Line protection with undervoltage releas","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"105 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]":"4.13 in","Height [In]":"6.22 in","Trip Indicator":"No","Number Of Poles":"3","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":"3VA12256EF320AA0","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","Of The Integrated Auxiliary Trip Unit":"3VA9608-0BB25","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"500 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=568818&mlfb=3VA1225-6EF32-0DA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-6EF32-0DA0/alternatives.json"},"ai":{"faq":[{"question":"Does the 3VA1225-6EF32-0DA0 include an undervoltage release?","answer":"Yes, it is equipped with an undervoltage release (UVR) as standard."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-6EF32-0DA0","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/3VA1225-6EF32-0DA0 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}}