{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1125-3EF32-0DA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1125-3EF32-0DA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1125-3EF32-0DA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1125-3EF32-0DA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1125-3EF32-0DA0, molded case circuit breaker, 3-pole, 25 A, line protection design, with integrated undervoltage release (UVR), TM240 overcurrent release.","salesMarkdown":"## Interrupting capacity — what the voltages tell you This MCCB's interrupting capacity varies sharply with system voltage: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V. For a 480 V panel feed, the 32 kA at 440 V figure is the closest published rating — expect the actual SCCR at 480 V to fall between the 440 V and 500 V curves. At 55 °C it drops to 24 A, at 65 °C to 23 A, and holds 23 A through 70 °C. Maximum power loss is 11 W at rated load. Standard 3-pole MCCB footprint — mounts in the usual panel cutout or on a mounting plate. No DIN-rail clip on this frame; expect bolted bus connections. The undervoltage release wiring needs a separate control voltage; verify polarity and coil rating against your 24 VDC or 110 VAC control supply before commissioning.","metaTitle":"Siemens 3VA1125-3EF32-0DA0 SENTRON MCCB, 25 A, 3-Pole, UVR","metaDescription":"Siemens SENTRON 3VA1125-3EF32-0DA0 molded case circuit breaker, 25 A, 3-pole, line protection with undervoltage release. 75.6 kA at 240 V. Current 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","Maximum":"0 A","Minimum":"0 A","at 240 V":"75.6 kA","at 415 V":"52.5 kA","at 440 V":"32 kA","at 500 V":"11.9 kA","at 690 V":"11.9 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":"3VA11253EF320AA0","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":"N","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=346340&mlfb=3VA1125-3EF32-0DA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1125-3EF32-0DA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 3VA1125-3EF32-0DA0 and what is the lead time?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for the latest lead time and price."},{"question":"Will 3VA1125-3EF32-0DA0 drop into a panel specified around 5SQ2370-2YA05?","answer":"The 3VA1125-3EF32-0DA0 is a Siemens SENTRON MCCB with a 3-pole 25 A rating and integrated undervoltage release. The 5SQ2370-2YA05 is a different manufacturer's MCCB; there is no published cross-reference or dimensional interchange guarantee. Panel fit must be verified against the cutout dimensions (70 mm depth, 76.2 mm width, 130 mm height) and bus connection pattern."},{"question":"What compliance documentation does Siemens provide for this MCCB?","answer":"As a Siemens SENTRON product, the 3VA1125-3EF32-0DA0 typically carries CE marking and is designed to meet IEC/EN 60947-2. RoHS and REACH declarations are available from Siemens documentation portals. Specific UL/CSA listings should be verified against the nameplate marking on the unit received."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1125-3EF32-0DA0","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/3VA1125-3EF32-0DA0 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}}