{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2125-8HN36-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2125-8HN36-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2125-8HN36-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2125-8HN36-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2125-8HN36-0AA0, molded case circuit breaker, 25 A, 3-pole, ETU350 electronic trip unit, line protection design.","salesMarkdown":"The Siemens SENTRON 3VA2125-8HN36-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for 25 A continuous current, built around the ETU350 electronic trip unit. It's designed for line protection duty — the kind of fixed, non-communicating breaker you spec into a distribution panel where you need reliable overcurrent protection without extra monitoring layers. The 25 A continuous rating holds flat across the full operating temperature range from -25 °C to 70 °C — no derating curve to chase in a warm enclosure. Insulation voltage is rated at 800 V, so it's comfortable in 480 V and 600 V class systems with headroom to spare. At 240 V it's rated for 440 kA; at 415 V and 440 V it holds at 330 kA; at 500 V it's 220 kA; and at 690 V it drops to 52.5 kA. For most North American 480Y/277 V panels the 330 kA figure applies — that's well above typical available fault current in commercial and light industrial distribution, so it gives you selectivity headroom without needing a current-limiting upstream device. The ETU350 electronic trip unit is a fixed-function, non-adjustable release — no dials for long-time, short-time, or instantaneous pickup. It's a straight thermal-magnetic replacement in electronic form, meaning it's a drop-in choice for a BOM line that just needs a coordinated 25 A breaker without commissioning steps. At 181 mm high, 105 mm wide, and 86 mm deep, this 3VA frame fits standard MCCB mounting footprints in Siemens SENTRON distribution panels and most third-party enclosures with a DIN-rail adapter or direct screw-mount plate.","metaTitle":"Siemens 3VA2125-8HN36-0AA0 SENTRON MCCB, 25 A, 3-Pole, ETU35","metaDescription":"Siemens SENTRON 3VA2125-8HN36-0AA0 molded case circuit breaker, 25 A continuous, 3-pole, ETU350 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":"300 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":"ETU350","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":"LSI","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":"double-sided box 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=465009&mlfb=3VA2125-8HN36-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2125-8HN36-0AA0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA2125-8HN36-0AA0?","answer":"Submit an RFQ through this listing. Availability and current pricing are confirmed at quote time through our independent distribution network."},{"question":"What is the breaking capacity of 3VA2125-8HN36-0AA0 at 480 V?","answer":"At 415 V and 440 V the breaking capacity is 330 kA; at 500 V it is 220 kA. For 480 V class systems the 330 kA figure at 440 V is the closest published rating."},{"question":"What compliance documentation does this breaker come with?","answer":"The evidence does not list specific compliance marks (UL, CSA, CE, RoHS, REACH) for this exact order code. Verify documentation requirements with the supplier at quote time."},{"question":"Can I buy 3VA2125-8HN36-0AA0 here?","answer":"Yes, this part is sourced to order against an RFQ through our supply channel. Submit a request for current lead time and pricing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2125-8HN36-0AA0","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/3VA2125-8HN36-0AA0 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}}