{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2125-5MN32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2125-5MN32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2125-5MN32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2125-5MN32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2125-5MN32-0AA0, molded case circuit breaker, 3-pole, 25 A rated current, motor protection design, adjustable trip class 10A/10E/20E.","salesMarkdown":"It includes phase failure detection and adjustable trip classes 10A, 10E, and 20E, letting you match the thermal curve to the motor's starting profile. The interrupting capacity hits 187 kA at 240 V, 121 kA at 415 V, and still holds 75.6 kA at 500 V — enough for high-fault industrial panels without cascading upstream. The 3-pole design with no undervoltage release or communication module keeps wiring simple: line in, load out, and a separate control circuit for the trip coil if needed. The adjustable trip class (10A, 10E, 20E) lets you set the overload delay: 10A for standard motor start, 10E for longer acceleration (e.g., high-inertia loads), 20E for extended start times. Phase failure detection trips the breaker if one phase drops out, protecting the motor from single-phasing.","metaTitle":"Siemens 3VA2125-5MN32-0AA0 SENTRON MCCB, 25 A, 3-Pole, Motor","metaDescription":"Siemens SENTRON 3VA2125-5MN32-0AA0 molded case circuit breaker, 25 A rated, 3-pole, motor protection with adjustable trip class 10A/10E/20E. Interrupting capacity 187 kA at 240 V.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"86 mm","Width":"105 mm","Height":"181 mm","Maximum":"17 s","Minimum":"4 s","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"75.6 kA","at 690 V":"3.7 kA","at 40 °C":"25 A","at 45 °C":"25 A","at 50 °C":"25 A","at 55 °C":"25 A","at 60 °C":"25 A","at 65 °C":"25 A","at 70 °C":"25 A","Depth [In]":"3.39 in","Width [In]":"4.13 in","Height [In]":"7.13 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":"No","Design Of The Product":"Motor protection","Communication Function":"No","Phase Failure Detection":"Yes","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"0.6 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Ground-Fault Monitoring Version":"Without","Continuous Current / Rated Value":"25 A","Insulation Voltage / Rated Value":"800 V","adjustable trip class (Tc CLASS)":"10A, 10E, 20E","Design Of The Overcurrent Release":"ETU350M","protection class IP / on the front":"IP40","operating power / at AC-3 / at 230 V":"5 500 W","operating power / at AC-3 / at 400 V":"11 000 W","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","reference code / according to IEC 81346-2":"Q","Continuous Current / Rated Value / Maximum":"160 A","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LSI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"E","Mechanical Service Life (Operating Cycles) / Typical":"25 000","Type Of Electrical Connection / For Main Current Circuit":"on both sides nut keeper kit","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/641a6843e8dc2f758bb6426196efa871.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=569626&mlfb=3VA2125-5MN32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2125-5MN32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source for 3VA2125-5MN32-0AA0?","answer":"The 3VA2040-8HN42-0AA0 is a functional peer within the same SENTRON family, but it is a 4-pole design with different trip ratings. Verify the pole count and trip settings before substituting — the 3VA2125 is 3-pole, motor-protection-specific."},{"question":"Where can I buy 3VA2125-5MN32-0AA0?","answer":"This part is available to order through independent distribution. Submit an RFQ for current pricing and lead time — availability is confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2125-5MN32-0AA0","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/3VA2125-5MN32-0AA0 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}}