{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2125-7JQ36-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2125-7JQ36-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2125-7JQ36-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2125-7JQ36-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2125-7JQ36-0AA0, 3-pole molded case circuit breaker, 25 A rated continuous current, ETU560 electronic trip unit, line protection version, 330 kA breaking capacity at 240 V.","salesMarkdown":"The Siemens SENTRON 3VA2125-7JQ36-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for a continuous current of 25 A, with no derating required across the full ambient range from 40 °C through 70 °C — all seven temperature points list the same 25 A rating, so the thermal curve is flat within that band. That is unusual for an MCCB; most units start derating above 40 °C. The ETU560 electronic trip unit gives you adjustable time-current curves (tr min 0.5 s, tr max 25 s; tsd max 0.5 s) for selective coordination downstream. Breaking capacity is the headline number for a line-up MCCB: 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3.8 kA at 690 V. Dimensions are 105 mm wide, 181 mm high, 86 mm deep — a standard 3-pole MCCB footprint for the SENTRON 3VA platform. Maximum power loss is 0.6 W — negligible for thermal budgeting inside a crowded enclosure. Latching endurance is 20,000 cycles, which is typical for a line-protection MCCB not used for frequent switching duty.","metaTitle":"Siemens 3VA2125-7JQ36-0AA0 SENTRON MCCB, 25 A, 3-Pole, ETU56","metaDescription":"Siemens SENTRON 3VA2125-7JQ36-0AA0 molded case circuit breaker, 25 A rated continuous current, 3-pole, ETU560 electronic trip unit. Breaking capacity 330 kA at 240 V. Current produ","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":"330 kA","at 415 V":"242 kA","at 440 V":"242 kA","at 500 V":"187 kA","at 690 V":"3.8 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]":"3.4 in","Width [in]":"4.1 in","Height [in]":"7.1 in","Number of poles":"3","Product version":"Line protection","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"20 000","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":"-40 °C","Other Measurement Function":"No","Rated continuous current Iu":"25 A","Rated insulation voltage Ui":"800 V","Ground fault monitoring version":"Summation current formation L-conductor","Design of the overcurrent release":"ETU560","Protection class IP / on the front":"IP40","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"25","Adjustable response value time / tr min.":"0.5","Adjustable response value time / tsd max.":"0.5 s","Adjustable response value time / tsd min.":"0.05 s","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"25 A","Adjustable response value current / lg max.":"25 A","Adjustable response value current / lg min.":"15 A","Adjustable response value current / li max.":"300 A","Adjustable response value current / li min.":"38 A","Adjustable response value current / lr min.":"10 A","Adjustable response value current / tg max.":"0.8 s","Adjustable response value current / tg min.":"0.05 s","Adjustable response value current / Isd max.":"250 A","Adjustable response value current / Isd min.":"15 A","Ground fault protection can be switched ON/OFF":"Yes","Neutral conductors / upgradeable/retrofittable":"Yes","Number of CO contacts / for auxiliary contacts":"0","Protective function of the overcurrent release":"LSIG","Switching capacity class of the circuit breaker":"C","Max. rated operational current of the frame size":"160 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"box terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, round conductor terminal, stranded":"1 x (6-120 mm²)"}},"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=138168&mlfb=3VA2125-7JQ36-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2125-7JQ36-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA2125-7JQ36-0AA0 at 415 V?","answer":"The breaking capacity is 242 kA at 415 V, which is the same rating as at 440 V. At 240 V it is 330 kA, at 500 V it is 187 kA, and at 690 V it is 3.8 kA."},{"question":"Does this MCCB require derating at elevated ambient temperatures?","answer":"No derating is required from 40 °C through 70 °C — the rated continuous current remains 25 A across that entire range, which is unusual for an MCCB."},{"question":"Where can I buy 3VA2125-7JQ36-0AA0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Current pricing and availability are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2125-7JQ36-0AA0","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/3VA2125-7JQ36-0AA0 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}}