{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2125-5MP32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2125-5MP32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2125-5MP32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2125-5MP32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2125-5MP32-0AA0, 3-pole molded case circuit breaker, 25 A rated current, motor protection design, adjustable trip classes 10A, 10/10E, 20/20E, 30/30E.","salesMarkdown":"## Motor protection MCCB with communication The Siemens SENTRON 3VA2125-5MP32-0AA0 is a 3-pole molded case circuit breaker (MCCB) purpose-built for motor protection, with a continuous current rating of 25 A that holds flat from 40 °C to 70 °C — no derating needed across typical panel ambient temperatures. Breaking capacity reaches 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V — so it handles high fault currents on 240 V distribution while still clearing moderate faults on 690 V motor circuits. Adjustable trip classes (10A, 10/10E, 20/20E, 30/30E) let you match the overload curve to motor start characteristics. Built-in communication function and phase failure detection mean this breaker can report status and trip events to a PLC or SCADA, and it will drop the motor on loss of a phase — no separate phase monitor relay needed. Dimensions of 181 mm height, 105 mm width, and 86 mm depth (7.13 × 4.13 × 3.39 in) fit standard MCCB panel cutouts and leave clearance for cable bending radius on 25 A motor feeders. Maximum power loss of 0.6 W keeps heat dissipation low in a crowded enclosure — no forced cooling required for this single breaker.","metaTitle":"Siemens 3VA2125-5MP32-0AA0 SENTRON MCCB, 25 A, 3-Pole, Motor","metaDescription":"Siemens SENTRON 3VA2125-5MP32-0AA0 molded case circuit breaker, 25 A, 3-pole, motor protection design, 187 kA at 240 V. Current lifecycle active. Quoted to order against RFQ.","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":"30 s","Minimum":"3 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":"Yes","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, 10/10E, 20/ 20E, 30/30E","Design Of The Overcurrent Release":"ETU550M","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=1133434&mlfb=3VA2125-5MP32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2125-5MP32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Will 3VA2125-5MP32-0AA0 drop into a panel that was specified around 5SQ2370-2YA05 without rewiring?","answer":"The 3VA2125-5MP32-0AA0 is a Siemens SENTRON 3-pole MCCB; the 5SQ2370-2YA05 is a different manufacturer's part. Panel fit depends on mounting footprint and terminal layout — verify physical compatibility before ordering."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2125-5MP32-0AA0","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/3VA2125-5MP32-0AA0 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}}