{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2125-6HN46-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2125-6HN46-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2125-6HN46-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2125-6HN46-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2125-6HN46-0AA0, molded case circuit breaker, 4-pole, 25 A rated continuous current, ETU350 electronic trip unit, interrupting capacity 242 kA at 240 V AC.","salesMarkdown":"It carries a continuous current rating of 25 A (flat across the full 40–70 °C ambient range, so no derating headache in a warm enclosure) and an insulation voltage of 800 V, which covers most 400/480 V industrial panels with headroom for 690 V systems. ## Interrupting capacity — the real number for fault duty At 240 V this breaker clears 242 kA symmetrical — that's a very high interrupting rating, typical for a large-frame MCCB on a high-fault utility feed. At 415/440 V it still holds 187 kA, and at 500 V it's 121 kA. The drop to 3.7 kA at 690 V tells you this is a 240–500 V part for most practical installations; if your system is 690 V, the available fault current must be under 3.7 kA, which is a niche case. Dimensions are 181 mm high, 140 mm wide, 86 mm deep — a standard 4-pole MCCB footprint for 160 A frame size.","metaTitle":"Siemens 3VA2125-6HN46-0AA0 SENTRON MCCB, 4P, 25 A, 242 kA at","metaDescription":"Siemens 3VA2125-6HN46-0AA0 SENTRON molded case circuit breaker, 4-pole, 25 A continuous, ETU350 trip unit, 242 kA at 240 V. Active production. Quoted 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":"140 mm","title":"3VA2125-6HN46-0AA0","Height":"181 mm","Maximum":"300 A","Minimum":"300 A","at 240 V":"242 kA","at 415 V":"187 kA","at 440 V":"187 kA","at 500 V":"121 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]":"5.51 in","Height [In]":"7.13 in","description":"circuit breaker 3VA2 IEC frame 160 breaking capacity class H Icu=85kA @ 415V 4-pole, line protection ETU350, LSI, In=25A overload protection Ir=10A...25A short-circuit protection Isd=1.5...10 x Ir, Ii=12 x In N conductor protection adjustable (OFF, 100%) clamp connection","Trip Indicator":"No","Number Of Poles":"4","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":"0.6 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","design of the N-conductor protection":"adjustable OFF; 100%","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":"H","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,"stockQuantity":0,"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=155918&mlfb=3VA2125-6HN46-0AA0"},"ai":{"faq":[{"question":"What is the interrupting capacity of 3VA2125-6HN46-0AA0 at 240 V?","answer":"At 240 V AC, the interrupting capacity is 242 kA symmetrical. At 415/440 V it is 187 kA, at 500 V it is 121 kA, and at 690 V it is 3.7 kA."},{"question":"What trip unit does the 3VA2125-6HN46-0AA0 use?","answer":"It uses the ETU350 electronic trip unit, which provides adjustable long-time, short-time, instantaneous, and ground-fault protection."},{"question":"Where can I buy the 3VA2125-6HN46-0AA0 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What are the mounting dimensions of 3VA2125-6HN46-0AA0?","answer":"Height is 181 mm, width is 140 mm, depth is 86 mm. It fits a standard 4-pole MCCB footprint for the 160 A frame size."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2125-6HN46-0AA0","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/3VA2125-6HN46-0AA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}