{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1125-6EF32-0CA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1125-6EF32-0CA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1125-6EF32-0CA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1125-6EF32-0CA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1125-6EF32-0CA0, molded case circuit breaker, 3-pole, 25 A, TM240 release, 220 kA at 240 V, undervoltage release, IP40 front.","salesMarkdown":"Its breaking capacity reaches 220 kA at 240 V, 154 kA at 415 V, 121 kA at 440 V, and 17 kA at 690 V — figures that define the fault-clearing capability at the point of installation, not the running load. The 220 kA at 240 V and 154 kA at 415 V ratings mean this MCCB can interrupt very high fault currents without upstream coordination failure — critical for transformer secondaries or bus-tie positions where available fault current exceeds 100 kA. The TM240 release is fixed-thermal, fixed-magnetic; no interchangeable trip units. The thermal derating curve is flat at 25 A from 40 °C through 50 °C, then drops to 24 A at 55 °C, 23.5 A at 60 °C, 23 A at 65 °C, and 22.5 A at 70 °C. ## Undervoltage release and auxiliary options No auxiliary contacts or shunt trip are fitted on this unit; those would need to be added externally if required. Dimensions are 130 mm height, 76.2 mm width, 70 mm depth — a standard 3-pole MCCB footprint that fits most SENTRON panelboards and distribution blocks.","metaTitle":"Siemens SENTRON 3VA1125-6EF32-0CA0 MCCB, 25 A, 220 kA at 240","metaDescription":"Siemens SENTRON 3VA1125-6EF32-0CA0 molded case circuit breaker, 25 A rated continuous current, 3-pole, TM240 release, 220 kA at 240 V. Active production. Sourced to order.","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":"220 kA","at 415 V":"154 kA","at 440 V":"121 kA","at 690 V":"17 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":"No","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"Yes","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":"Undervoltage release (UVR)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9608-0BB24","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":"H","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":"https://cdn.aoctrl.com/20978c6274240b024e2e92852324cdc5.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=41404&mlfb=3VA1125-6EF32-0CA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1125-6EF32-0CA0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1125-6EF32-0CA0?","answer":"Submit an RFQ through this listing. The part is sourced to order through independent distribution; pricing and stock levels are confirmed at quote time."},{"question":"What is the closest functional alternative to 3VA1125-6EF32-0CA0?","answer":"The 3VA1112-5EF32-0CA0 is a lower-current sibling in the same 3VA frame. The key difference is the continuous current rating: 25 A on the 3VA1125 versus 12.5 A on the 3VA1112. Both share the 3-pole form factor, TM240 release design, and the same 220 kA at 240 V breaking capacity. Panel cutout dimensions are identical, so a swap between the two requires no rewiring — only verifying the load current matches the lower rating."},{"question":"Will 3VA1125-6EF32-0CA0 drop into a panel specified for 3VA1112-5EF32-0CA0?","answer":"Yes. Both share the same 3-pole frame dimensions (130 mm H × 76.2 mm W × 70 mm D) and mounting pattern. No rewiring is needed — just verify the load current is within the 25 A rating of the 3VA1125."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1125-6EF32-0CA0","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/3VA1125-6EF32-0CA0 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}}