{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2040-8HN36-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2040-8HN36-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2040-8HN36-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2040-8HN36-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2040-8HN36-0AA0, molded case circuit breaker, 3-pole, 40 A, ETU350 electronic trip unit, line protection design.","salesMarkdown":"The Siemens 3VA2040-8HN36-0AA0 is a SENTRON molded case circuit breaker (MCCB) with a 40 A continuous current rating, three poles, and an ETU350 electronic trip unit. The 40 A rating is the full-load current it carries continuously at ambient temperatures from 40 °C up to 70 °C without derating — so it holds steady in a warm cabinet where a thermal-magnetic breaker might need to be oversized. The ETU350 is an adjustable electronic trip unit that gives selectivity tuning for coordination studies, which is the main reason to choose this over a fixed-trip MCCB. Breaking capacity is 330 kA at 415 V, meaning it can safely interrupt a fault current up to that level on a 400 V-class distribution system without upstream fuses or a current-limiting reactor. At 690 V the rating drops to 52.5 kA — still high enough for most industrial secondary feeders. The breaker measures 105 mm wide, 181 mm high, and 86 mm deep. The 105 mm width is the standard 3-pole MCCB footprint for the 3VA2 frame — it occupies the same panel cutout as other 3VA2 breakers, so swapping between ratings within the frame size requires no re-drilling. Depth of 86 mm includes the handle and terminal covers; allow clearance for cable bending radius below the line and load lugs.","metaTitle":"Siemens 3VA2040-8HN36-0AA0 SENTRON MCCB, 40 A, 3-Pole, ETU35","metaDescription":"Siemens 3VA2040-8HN36-0AA0 SENTRON molded case circuit breaker, 40 A rated, 3-pole, ETU350 trip unit, 330 kA at 415 V. Current production. Quoted to order against RFQ.","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":"480 A","Minimum":"480 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":"40 A","at 45 °C":"40 A","at 50 °C":"40 A","at 55 °C":"40 A","at 60 °C":"40 A","at 65 °C":"40 A","at 70 °C":"40 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":"1.2 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Ground-Fault Monitoring Version":"Without","Continuous Current / Rated Value":"40 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":"100 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/57cc8412d83dd5acd7c993d096f81e29.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=71384&mlfb=3VA2040-8HN36-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2040-8HN36-0AA0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA2040-8HN36-0AA0?","answer":"Submit an RFQ through the storefront. Pricing and stock are confirmed at quote time; the part is sourced through independent distribution and quoted to order."},{"question":"Will 3VA2040-8HN36-0AA0 drop into a panel that was specified around 3VA2040-8HN42-0AA0 without rewiring?","answer":"Both are 3-pole 3VA2 frame breakers with the same 105 mm width, 181 mm height, and 86 mm depth, so the mechanical footprint is identical. The 8HN42 variant carries a higher 42 A continuous rating; the 8HN36 is 40 A. No panel rework is needed for the swap, but verify the load current does not exceed 40 A."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2040-8HN36-0AA0","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/3VA2040-8HN36-0AA0 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}}