{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2125-5JP32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2125-5JP32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2125-5JP32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2125-5JP32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2125-5JP32-0AA0, 3-pole molded case circuit breaker, 25 A, 187 kA at 240 V, ETU550 electronic trip unit, line protection, IP40 front, 105 x 86 x 181 mm.","salesMarkdown":"The ETU550 electronic trip unit gives adjustable long-time, short-time, and instantaneous protection curves, plus ground-fault alarm capability. Communication function is built in, which means it talks to a BMS or PLC without an add-on module. Power loss is only 0.6 W, so heat buildup in a crowded panel is negligible. ## Trip unit and protection capabilities The ETU550 is an electronic release with LSIG protection — long-time, short-time, instantaneous, and ground-fault. That's more granular than a thermal-magnetic breaker, so you can coordinate with downstream devices on a selective system. The ground-fault monitoring version is listed as 'Without' on this order code, meaning the base unit doesn't include internal GF sensing; if you need integral ground-fault, the ETU550 platform supports it via a different variant. The optional motor drive lets you add remote open/close for automated transfer schemes.","metaTitle":"Siemens 3VA2125-5JP32-0AA0 SENTRON MCCB, 25 A, 187 kA at 240","metaDescription":"Siemens SENTRON 3VA2125-5JP32-0AA0 molded case circuit breaker, 25 A, 3-pole, 187 kA at 240 V, ETU550 release, IP40 front, in current production. Sourced 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","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","Product version":"Line protection","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Communication Function":"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","Courant permanent assigné Iu":"25 A","Ground-Fault Monitoring Version":"Without","Tension assignée d'isolement Ui":"800 V","Design Of The Overcurrent Release":"ETU550","protection class IP / on the front":"IP40","reference code / acc. to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Adjustable response value current / li max.":"300 A","Adjustable response value current / li min.":"38 A","Neutral conductors / upgradeable/retrofittable":"Yes","Protection Function Of The Overcurrent Release":"LSI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"M","Max. rated operational current of the frame size":"160 A","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","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"13 x 1 mm"}},"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=39240&mlfb=3VA2125-5JP32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2125-5JP32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2125-5JP32-0AA0 and how do I get a price?","answer":"We source the 3VA2125-5JP32-0AA0 to order against an RFQ. Submit a request and we'll confirm availability and current pricing at quote time."},{"question":"What is the interrupting capacity of 3VA2125-5JP32-0AA0 at different voltages?","answer":"At 240 V it interrupts 187 kA; at 415 V and 440 V it interrupts 121 kA; at 500 V it interrupts 75.6 kA; and at 690 V it interrupts 3.7 kA. That high 187 kA rating suits service-entrance applications with high available fault current."},{"question":"What trip unit does 3VA2125-5JP32-0AA0 use?","answer":"It uses the ETU550 electronic trip unit, which provides LSIG protection — long-time, short-time, instantaneous, and ground-fault alarm. This allows selective coordination with downstream breakers."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2125-5JP32-0AA0","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/3VA2125-5JP32-0AA0 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}}