{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-4EF42-0JC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-4EF42-0JC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-4EF42-0JC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-4EF42-0JC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1225-4EF42-0JC0, molded case circuit breaker, 4-pole, 250 A at 40 °C, breaking capacity 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, 17 kA at 500 V, 11.9 kA at 690 V, depth 70 mm, width 140 mm, height 158 mm.","salesMarkdown":"The breaking capacity is what decides the fit: 121 kA at 240 V AC, 75.6 kA at 415 V, 52.5 kA at 440 V, 17 kA at 500 V, and 11.9 kA at 690 V. Thermal derating kicks in above 50 °C: 243 A at 55 °C, 237 A at 60 °C, 230 A at 65 °C, and 223 A at 70 °C. It does not have an undervoltage release, ground-fault monitoring, or communication function — it is a straightforward line-protection device for distribution panels. The 3VA1225-4EF42-0JC0 measures 70 mm deep, 140 mm wide, and 158 mm high. The 4-pole footprint and 250 A frame size mean it occupies a standard slot in a SENTRON distribution board; verify gland-plate cutout and phase-separation clearances per the manufacturer's mounting instructions.","metaTitle":"Siemens 3VA1225-4EF42-0JC0 SENTRON MCCB, 250 A, 4-Pole, 121","metaDescription":"Siemens SENTRON 3VA1225-4EF42-0JC0 molded case circuit breaker, 250 A, 4-pole, 121 kA at 240 V. Active production. Quoted on request.","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":"121 kA","at 415 V":"75.6 kA","at 440 V":"52.5 kA","at 500 V":"17 kA","at 690 V":"11.9 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":"Yes","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"57 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA12254EF420AA0","Design Of The Auxiliary Switch":"2 auxiliary switches HQ","Design Of The Auxiliary Release":"shunt trip (STL)","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":"3VA9688-0BL32","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":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching Capacity Class Of The Circuit Breaker":"S","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=568527&mlfb=3VA1225-4EF42-0JC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-4EF42-0JC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1225-4EF42-0JC0 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit a request for a firm price and availability quote."},{"question":"What is 3VA1225-4EF42-0JC0's listed depth?","answer":"The depth is 70 mm (2.76 in)."},{"question":"What is 3VA1225-4EF42-0JC0's listed width?","answer":"The width is 140 mm (5.51 in)."},{"question":"Will 3VA1225-4EF42-0JC0 drop into a panel specified around 5SQ2670-2YA63 without rewiring?","answer":"The 3VA1225-4EF42-0JC0 is a 4-pole MCCB with a shunt trip and two auxiliary switches; the 5SQ2670-2YA63 is a different form factor and accessory set. Panel fit and wiring cannot be assumed without comparing the mounting footprint, terminal arrangement, and auxiliary contact wiring — verify the mechanical and electrical interface before substitution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-4EF42-0JC0","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/3VA1225-4EF42-0JC0 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}}