{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-4EF32-0JA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-4EF32-0JA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-4EF32-0JA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-4EF32-0JA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1225-4EF32-0JA0, molded case circuit breaker, 3-pole, 250 A rated continuous current, TM240 thermal-magnetic release, shunt trip, line protection, breaking capacity 121 kA at 240 V.","salesMarkdown":"## MCCB with shunt trip for line protection It includes a factory-integrated shunt trip (STL) release for remote tripping, making it suitable for applications where emergency-off or supervisory control signals must open the breaker independently of the overcurrent mechanism. Breaking capacity is rated at 121 kA at 240 V, 75.6 kA at 415 V, 25 kA at 440 V, and 11.9 kA at 690 V — figures that cover most industrial distribution panels up to 690 V line-to-line. Dimensions are 105 mm wide, 158 mm high, and 70 mm deep — a standard 3-pole SENTRON 3VA frame that fits the same panel cutout and busbar spacing as other 3VA breakers in this current class. Front protection is IP40, adequate for enclosed distribution boards where the breaker face is behind a door. Above that, derating applies: 243.3 A at 55 °C, 236.5 A at 60 °C, 229 A at 65 °C, and 223 A at 70 °C. ## Integrated shunt trip and subcomponents The shunt trip release (STL) is designed as an auxiliary release — part number 3VA9688-0BL32 is the integrated trip unit. The supplied basic switch is 3VA12254EF320AA0. The trip indicator is also absent, so visual status is limited to the handle position.","metaTitle":"Siemens 3VA1225-4EF32-0JA0 SENTRON MCCB, 250 A, 3-Pole, Shun","metaDescription":"Siemens SENTRON 3VA1225-4EF32-0JA0 molded case circuit breaker, 250 A rated current, 3-pole, TM240 thermal-magnetic release, shunt trip, line protection. Breaking capacity 121 kA a","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","at 240 V":"121 kA","at 415 V":"75.6 kA","at 440 V":"25 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":"243.3 A","at 60 °C":"236.5 A","at 65 °C":"229 A","at 70 °C":"223 A","Trip indicator":"No","Number of poles":"3","Product version":"Line protection","Voltage trigger":"Yes","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Undervoltage Release":"No","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"Without","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","Of The Supplied Basic Switch":"3VA12254EF320AA0","Design of the auxiliary release":"Shunt trip (STL)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9688-0BL32","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","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":"500 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Adjustable response value current / lg min.":"250 A","Adjustable response value current / li max.":"2 500 A","Adjustable response value current / li min.":"1 250 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"0","Protection Function Of The Overcurrent Release":"LI","Switching capacity class of the circuit breaker":"S","Max. rated operational current of the frame size":"250 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Mechanical service life (switching cycles) / typical":"15 000","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=568500&mlfb=3VA1225-4EF32-0JA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-4EF32-0JA0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1225-4EF32-0JA0 at different voltages?","answer":"Breaking capacity is 121 kA at 240 V, 75.6 kA at 415 V, 25 kA at 440 V, and 11.9 kA at 690 V. These ratings cover most industrial low-voltage distribution applications."},{"question":"What does the shunt trip release do on this MCCB?","answer":"The integrated shunt trip (STL) release allows remote tripping of the breaker via a control voltage signal. It is separate from the overcurrent protection and is used for emergency-off, supervisory, or interlock functions."},{"question":"Where can I buy 3VA1225-4EF32-0JA0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time."},{"question":"Will 3VA1225-4EF32-0JA0 drop into a panel specified for 3VA1010-2ED32-0JA0?","answer":"Both are 3-pole SENTRON 3VA breakers sharing the same frame width (105 mm) and mounting pattern, so the footprint is compatible. However, the 3VA1225 is a 250 A frame with a TM240 release and shunt trip, while the 3VA1010 is a lower-current variant. Verify busbar ampacity and the shunt trip control wiring before substitution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-4EF32-0JA0","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/3VA1225-4EF32-0JA0 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}}