{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1125-3EF32-0JA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1125-3EF32-0JA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1125-3EF32-0JA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1125-3EF32-0JA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1125-3EF32-0JA0, 3-pole molded case circuit breaker, 25 A rated continuous current (Iu), TM240 thermal-magnetic release, line protection, shunt trip (STL), interrupting ratings 75.6 kA at 240 V / 52.5 kA at 415 V / 32 kA at 440 V / 10.5 kA at 690 V.","salesMarkdown":"It carries a 75.6 kA interrupting capacity at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 10.5 kA at 690 V — figures that govern its fault-clearing ability at the panel's service voltage. ## What the interrupting ratings mean for fit At 415 V (common in European industrial panels) the rating drops to 52.5 kA, and at 690 V it falls to 10.5 kA. ## Thermal derating and continuous current Above 50 °C it begins to derate: 24 A at 55 °C, 23.5 A at 60 °C, 23 A at 65 °C, and 22.5 A at 70 °C. For a panel that runs warm — say, a packed enclosure near a furnace line or in a hot climate — the actual load must be kept below the derated figure at the enclosure's internal ambient. The 76.2 mm width (3 inches) is the standard footprint for a 3-pole SENTRON 3VA1 frame; it mounts via screw-clamp lugs to a backplate or DIN-rail adapter (not included). The 70 mm depth leaves clearance for rear-connected busbars or cable ducts behind the breaker.","metaTitle":"Siemens 3VA1125-3EF32-0JA0 SENTRON MCCB, 25 A, 75.6 kA at 24","metaDescription":"Siemens 3VA1125-3EF32-0JA0 SENTRON molded case circuit breaker, 25 A rated continuous, 75.6 kA interrupting at 240 V. 3-pole, line protection, shunt trip. Sourced to order. 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":"76.2 mm","Height":"130 mm","at 240 V":"75.6 kA","at 415 V":"52.5 kA","at 440 V":"32 kA","at 690 V":"10.5 kA","at 40 °C":"25 A","at 45 °C":"25 A","at 50 °C":"25 A","at 55 °C":"24 A","at 60 °C":"23.5 A","at 65 °C":"23 A","at 70 °C":"22.5 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","Latching - endurance":"15 000","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":"25 A","Rated insulation voltage Ui":"800 V","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 / Ir max.":"25 A","Adjustable response value current / li max.":"320 A","Adjustable response value current / li min.":"160 A","Adjustable response value current / lr min.":"18 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"0","Protective function of the overcurrent release":"LI","Switching capacity class of the circuit breaker":"N","Max. rated operational current of the frame size":"160 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","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.":"17 x 6.5","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"12 x 0"}},"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=258950&mlfb=3VA1125-3EF32-0JA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1125-3EF32-0JA0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting rating of 3VA1125-3EF32-0JA0 at 415 V?","answer":"At 415 V the interrupting rating is 52.5 kA."},{"question":"What is the closest functional second-source for 3VA1125-3EF32-0JA0?","answer":"The 3VA1010-2ED32-0JA0 is a lower-current sibling in the same 3VA1 frame family, but it carries different interrupting ratings and a different release type — verify the specific ratings against your fault-current study before substituting."},{"question":"What compliance documentation does Siemens provide for this MCCB?","answer":"The SENTRON 3VA series carries UL, CSA, and IEC certifications per standard Siemens documentation; the reference code per DIN EN 81346-2 is Q."},{"question":"Where can I buy 3VA1125-3EF32-0JA0 and get current pricing?","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 offer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1125-3EF32-0JA0","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/3VA1125-3EF32-0JA0 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}}