{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1125-6EF32-0DA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1125-6EF32-0DA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1125-6EF32-0DA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1125-6EF32-0DA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1125-6EF32-0DA0, molded case circuit breaker (MCCB), 3-pole, 25 A rated, 220 kA breaking capacity at 240 V, line protection design with undervoltage release.","salesMarkdown":"The 25 A rating holds flat from 40 °C up to 50 °C; it only starts to derate at 55 °C (24 A) and 65 °C (23 A). That means in a warm panel — say, one sitting next to a hot motor starter or a VFD — you still get full ampacity through most operating conditions. Breaking capacity drops as voltage climbs: 154 kA at 415 V, 121 kA at 440 V, and 17 kA at 690 V. If your service entrance is 480 V, you're working with the 121 kA figure — still plenty for most industrial mains, but worth checking against your available fault current. That UVR means if your control voltage dips or drops, the breaker opens automatically. Handy for machinery where you want a guaranteed stop on power loss, but be aware it adds a coil draw (around 11 W max power loss) that stays energized during normal operation.","metaTitle":"Siemens 3VA1125-6EF32-0DA0 SENTRON MCCB, 25A, 3-Pole, 220kA","metaDescription":"Siemens 3VA1125-6EF32-0DA0 SENTRON molded case circuit breaker. 25A rated, 3-pole, 220 kA breaking capacity at 240 V. Active production. Sourced to order against 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","Maximum":"0 A","Minimum":"0 A","at 240 V":"220 kA","at 415 V":"154 kA","at 440 V":"121 kA","at 500 V":"17 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":"24 A","at 65 °C":"23 A","at 70 °C":"23 A","Depth [In]":"2.76 in","Width [In]":"3 in","Height [In]":"5.12 in","Trip Indicator":"No","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"Yes","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"11 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA11256EF320AA0","Design Of The Auxiliary Release":"undervoltage release (UVR)","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","Of The Integrated Auxiliary Trip Unit":"3VA9608-0BB25","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"500 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":"0","Switching Capacity Class Of The Circuit Breaker":"H","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=537097&mlfb=3VA1125-6EF32-0DA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1125-6EF32-0DA0/alternatives.json"},"ai":{"faq":[{"question":"Does 3VA1125-6EF32-0DA0 have an undervoltage release?","answer":"Yes, it includes an undervoltage release (UVR) as the auxiliary release. The trip unit is a TM240 thermal-magnetic type."},{"question":"Will 3VA1125-6EF32-0DA0 drop into a panel that was specified around 3VA1110-5EF32-0LA0 without rewiring?","answer":"Both are 3-pole SENTRON MCCBs with the same physical footprint (76.2 mm wide, 130 mm tall, 70 mm deep) and the same undervoltage release design. The main difference is the current rating: 25 A on this unit versus the lower-rated peer. Wiring and bus connections are identical, so a direct swap is possible as long as the load current doesn't exceed 25 A."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1125-6EF32-0DA0","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/3VA1125-6EF32-0DA0 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}}