{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2440-8HL42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2440-8HL42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2440-8HL42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2440-8HL42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2 molded case circuit breaker, 400 A, 4-pole, ETU320 electronic trip unit, line protection design, 110 mm depth.","salesMarkdown":"## MCCB for 400 A feeder protection The Siemens 3VA2440-8HL42-0AA0 is a SENTRON 3VA2 molded case circuit breaker rated for 400 A continuous current across its full ambient temperature range from 40 °C to 70 °C — no derating needed up to that ceiling. It carries an ETU320 electronic trip unit with an adjustable magnetic short-circuit release spanning 600 A to 4,400 A, so you set the instantaneous pickup to coordinate with downstream devices rather than relying on a fixed magnetic shelf. ## Interrupting capacity across voltage classes This MCCB delivers 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. No undervoltage release or shunt trip fitted from the factory (: No), so if you need UVR or MX add-on accessories, those are separate order codes that plug into the accessory slot on the left side of the breaker.","metaTitle":"Siemens 3VA2440-8HL42-0AA0 SENTRON MCCB, 400A, 4-Pole, ETU32","metaDescription":"Siemens 3VA2440-8HL42-0AA0 SENTRON molded case circuit breaker, 400 A continuous, 4-pole, ETU320 trip unit. Interrupting 440 kA at 240 V. Active production, sourced to order. Reque","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"184 mm","Height":"248 mm","Maximum":"4 400 A","Minimum":"600 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":"400 A","at 45 °C":"400 A","at 50 °C":"400 A","at 55 °C":"400 A","at 60 °C":"400 A","at 65 °C":"400 A","at 70 °C":"400 A","Depth [In]":"4.33 in","Width [In]":"7.24 in","Height [In]":"9.76 in","Limited To 1 S":"5 kA","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":"63.5 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Ground-Fault Monitoring Version":"Without","Continuous Current / Rated Value":"400 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU320","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 50%; 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":"630 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":"20 000","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/0eb36652ce522f093395d6bd0dd27e34.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=86256&mlfb=3VA2440-8HL42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2440-8HL42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of 3VA2440-8HL42-0AA0 at 415 V?","answer":"330 kA at 415 V, matching the rating at 440 V. At 240 V it reaches 440 kA, and at 690 V it still holds 52.5 kA."},{"question":"Where can I buy 3VA2440-8HL42-0AA0 and how is it quoted?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or price is published here."},{"question":"Does 3VA2440-8HL42-0AA0 have an undervoltage release built in?","answer":"No, the factory configuration does not include an undervoltage release. If UVR is required, it must be ordered as a separate accessory and field-installed."},{"question":"What is the continuous current rating of 3VA2440-8HL42-0AA0 at elevated ambient temperatures?","answer":"Rated 400 A continuously from 40 °C up to 70 °C ambient — no derating required across that entire range."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2440-8HL42-0AA0","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/3VA2440-8HL42-0AA0 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}}