{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2125-6KP32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2125-6KP32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2125-6KP32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2125-6KP32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2125-6KP32-0AA0, 3-pole molded case circuit breaker, 25 A rated continuous current, 242 kA breaking capacity at 240 V AC, ETU850 electronic trip unit, line protection version.","salesMarkdown":"The Siemens 3VA2125-6KP32-0AA0 is a 3-pole SENTRON molded case circuit breaker (MCCB) rated for 25 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. The 242 kA breaking capacity at 240 V AC means it can safely interrupt a fault current up to that level without the arc flashing over or the breaker rupturing; at 415 V and 440 V it still holds 187 kA, dropping to 121 kA at 500 V and 3.8 kA at 690 V. The ETU850 electronic trip unit gives you adjustable long-time (tr) from 0.5 to 25 seconds and short-time (tsd) up to 0.5 s, so you can coordinate selectively with downstream breakers. That's the kind of curve shaping you need for a distribution panel, not just a branch-circuit snap. Communication function is onboard, so it can talk to a building management or SCADA system — no separate comm module required. Mounts on a panel or in an enclosure — the 105 mm width, 181 mm height, and 86 mm depth (4.1 by 7.1 by 3.4 inches) fit the standard SENTRON 3VA footprint. ## Panel integration and mechanical fit Latching endurance rated at 20,000 operations — that's a mechanical life figure, not the electrical endurance under load (which will be lower at full rated current). Storage temperature range is -40 °C to 80 °C; operating range is -40 °C to 70 °C, so it's fine for unheated warehouses or outdoor enclosures in temperate climates as long as the IP40 front is protected from rain.","metaTitle":"Siemens 3VA2125-6KP32-0AA0 SENTRON MCCB, 25A, 242kA at 240V","metaDescription":"Siemens SENTRON 3VA2125-6KP32-0AA0 molded case circuit breaker, 3-pole, 25 A rated current, 242 kA breaking capacity at 240 V AC. Current production. Sourced to order.","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":"242 kA","at 415 V":"187 kA","at 440 V":"187 kA","at 500 V":"121 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":"Yes","Rated continuous current Iu":"25 A","Rated insulation voltage Ui":"800 V","Ground fault monitoring version":"Without","Design of the overcurrent release":"ETU850","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 / li max.":"300 A","Adjustable response value current / li min.":"38 A","Adjustable response value current / lr min.":"10 A","Adjustable response value current / Isd max.":"250 A","Adjustable response value current / Isd min.":"15 A","Neutral conductors / upgradeable/retrofittable":"Yes","Number of CO contacts / for auxiliary contacts":"0","Protective function of the overcurrent release":"LSI","Switching capacity class of the circuit breaker":"H","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":"Lug terminal","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=28558&mlfb=3VA2125-6KP32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2125-6KP32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Does the 3VA2125-6KP32-0AA0 have communication capability?","answer":"Yes, the communication function is listed as present. That means it can interface with a building management system or SCADA — no separate communication module is required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2125-6KP32-0AA0","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/3VA2125-6KP32-0AA0 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}}