{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2125-8HL32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2125-8HL32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2125-8HL32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2125-8HL32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2 series, molded case circuit breaker, 3VA2125-8HL32-0AA0, 3-pole, 25 A rated current, ETU320 electronic trip unit, line protection design.","salesMarkdown":"Breaking capacity is the headline number here: 440 kA at 240 V, 330 kA at 415 V and 440 V, 220 kA at 500 V, and 52.5 kA at 690 V. That's a lot of fault-clearing muscle — it'll interrupt a serious arc flash without welding contacts or venting gas into the panel. This MCCB is designed for DIN-rail mounting in standard distribution enclosures. Dimensions are 181 mm high, 105 mm wide, 86 mm deep — roughly 7.1 x 4.1 x 3.4 inches. It'll fit a typical 600 mm wide panel with room for branch breakers alongside. The trip indicator is also absent, so you'll need to read the handle position or add an auxiliary contact if remote status matters. Power loss is negligible at 0.5 W max. ## Thermal derating and ambient range That's unusual — most breakers start derating above 40 °C. Here you get full rated current even in a hot panel near a transformer or drive.","metaTitle":"Siemens 3VA2125-8HL32-0AA0 SENTRON MCCB, 25 A, 3-Pole, ETU32","metaDescription":"Siemens 3VA2125-8HL32-0AA0 SENTRON molded case circuit breaker. 25 A continuous, 3-pole, ETU320 trip unit. Breaking capacity 440 kA at 240 V. Active production, sourced to order. R","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":"300 A","Minimum":"38 A","at 240 V":"440 kA","at 415 V":"330 kA","at 440 V":"330 kA","at 500 V":"220 kA","at 690 V":"52.5 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":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"0.5 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","Design Of The Overcurrent Release":"ETU320","protection class IP / on the front":"IP40","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":"LI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"L","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=430162&mlfb=3VA2125-8HL32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2125-8HL32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2125-8HL32-0AA0 and what is the lead time?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for your quantity and delivery window."},{"question":"What are the key ratings for this MCCB?","answer":"25 A continuous current, 3-pole, ETU320 electronic trip unit. Breaking capacity: 440 kA at 240 V, 330 kA at 415 V and 440 V, 220 kA at 500 V, 52.5 kA at 690 V. Rated insulation voltage 800 V."},{"question":"What are the physical dimensions of 3VA2125-8HL32-0AA0?","answer":"Height 181 mm (7.13 in), width 105 mm (4.13 in), depth 86 mm (3.39 in). DIN-rail mountable with IP40 front protection."},{"question":"Will this drop into a panel specified around 5SQ2370-2YA05 without rewiring?","answer":"The 5SQ2370-2YA series are also 3-pole MCCBs in a similar form factor, but the 3VA2125-8HL32-0AA0 uses the SENTRON 3VA2 footprint with different mounting hole patterns and terminal spacing. Physical swap without rewiring is not guaranteed — verify the panel cutout and bus bar layout against the 105 mm width and 181 mm height before ordering."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2125-8HL32-0AA0","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/3VA2125-8HL32-0AA0 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}}