{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1125-3EF32-0AG0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1125-3EF32-0AG0","canonicalUrl":"https://aoctrl.com/siemens/3VA1125-3EF32-0AG0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1125-3EF32-0AG0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1125-3EF32-0AG0, molded case circuit breaker, 3-pole, 25 A rated continuous current Iu, 75.6 kA breaking capacity at 240 V, TM240 thermal-magnetic release.","salesMarkdown":"## Line protection MCCB with a clear thermal-magnetic curve Its TM240 thermal-magnetic release handles the overload and short-circuit trip coordination — no electronic adjustment, no communication module, no voltage trip coil. The interrupting ratings climb to 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 10.5 kA at 690 V, so it can sit upstream of a distribution panel or feed a motor control center where the available fault current is substantial. Above that it steps down: 24 A at 55 °C, 23.5 A at 60 °C, 23 A at 65 °C, and 22.5 A at 70 °C. If the enclosure runs hot — say a sealed stainless panel near a furnace line — the 70 °C figure is the one to budget against. Dimensions are 130 mm tall, 76.2 mm wide, and 70 mm deep — a standard MCCB footprint that drops into a SENTRON 3VA mounting base without panel modification.","metaTitle":"Siemens 3VA1125-3EF32-0AG0 SENTRON MCCB, 25A, 75.6kA at 240V","metaDescription":"Siemens SENTRON 3VA1125-3EF32-0AG0 molded case circuit breaker, 25A rated, 75.6kA breaking at 240V. Active production. TM240 release. Sourced to order. Request RFQ.","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":"Yes","Number of poles":"3","Product version":"Line protection","Voltage trigger":"No","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":"1 auxiliary switch + 1 trip alarm switch HP","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":"without auxiliaryrelease","Ground fault monitoring version":"Without","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":"2","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB11","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=6779&mlfb=3VA1125-3EF32-0AG0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1125-3EF32-0AG0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 3VA1125-3EF32-0AG0 and get a price?","answer":"The 3VA1125-3EF32-0AG0 is sourced to order through independent distribution. Submit an RFQ; availability and current pricing are confirmed at quote time."},{"question":"What is the breaking capacity of this MCCB at 240 V?","answer":"At 240 V the interrupting rating is 75.6 kA. At 415 V it is 52.5 kA, at 440 V it is 32 kA, and at 690 V it is 10.5 kA."},{"question":"What does the TM240 release designation mean?","answer":"TM240 indicates a thermal-magnetic (fixed) overcurrent release — the thermal element handles overloads, the magnetic element handles short circuits. No electronic adjustment, no communication, no ground-fault module."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1125-3EF32-0AG0","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/3VA1125-3EF32-0AG0 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}}