{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2125-5HM36-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2125-5HM36-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2125-5HM36-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2125-5HM36-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2125-5HM36-0AA0, Molded case circuit breaker, 3-pole, 25 A continuous, 121 kA breaking capacity at 415 V, line protection design.","salesMarkdown":"The 800 V rated insulation voltage gives headroom for 690 V systems, though the 3.7 kA breaking capacity at 690 V is the limiting factor at that voltage class. ## Breaking capacity across voltages — where it fits Breaking capacity drops sharply above 500 V: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V. That 690 V figure is low enough that for 690 V applications you'd typically step up to a higher-rated frame. The 3VA2125-5HM36-0AA0 measures 86 mm deep, 105 mm wide, and 181 mm high — a standard 3-pole MCCB footprint that fits most DIN-rail or panel-mount enclosures.","metaTitle":"Siemens SENTRON 3VA2125-5HM36-0AA0 MCCB, 25 A, 121 kA at 415","metaDescription":"Siemens SENTRON 3VA2125-5HM36-0AA0 molded case circuit breaker, 25 A continuous, 3-pole, 121 kA breaking capacity at 415 V. Line protection design. Available 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","Maximum":"300 A","Minimum":"38 A","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"75.6 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]":"4.13 in","Height [In]":"7.13 in","Initial Value":"15 A","Trip Indicator":"No","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Full-Scale Value":"25 A","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":"Summation current formation L-conductor","Continuous Current / Rated Value":"25 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU330","protection class IP / on the front":"IP40","Product Function / Grounding Protection":"Yes","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":"LIG","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"M","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=62663&mlfb=3VA2125-5HM36-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2125-5HM36-0AA0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA2125-5HM36-0AA0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current pricing and availability — confirmed at quote time."},{"question":"What is 3VA2125-5HM36-0AA0's listed depth?","answer":"The listed depth is 86 mm (3.39 in), with a width of 105 mm (4.13 in) and height of 181 mm (7.13 in)."},{"question":"What compliance documentation does this brand provide for 3VA2125-5HM36-0AA0?","answer":"As a current-production SENTRON MCCB, standard documentation includes the manufacturer's declaration of conformity to relevant IEC/UL standards. Specific certs (UL, CSA, CE) should be confirmed on the product certificate available from Siemens."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2125-5HM36-0AA0","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/3VA2125-5HM36-0AA0 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}}