{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2440-5HL32-0DH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2440-5HL32-0DH0","canonicalUrl":"https://aoctrl.com/siemens/3VA2440-5HL32-0DH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2440-5HL32-0DH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2440-5HL32-0DH0, molded case circuit breaker, 3-pole, 400 A, line protection, with undervoltage release and 2 auxiliary switches + 1 trip alarm switch HQ.","salesMarkdown":"## SENTRON 3VA2440-5HL32-0DH0 — 400 A MCCB with undervoltage release That flat thermal curve simplifies panel sizing: you don't have to oversize the frame for a warm enclosure. Breaking capacity is specified per voltage: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 9 kA at 690 V. For a 480 V distribution panel, the 121 kA at 440 V figure is the closest published benchmark — well above typical utility fault levels, so selectivity coordination with downstream breakers is straightforward. The adjustable current rating range spans 600 A minimum to 4800 A maximum, giving the installer headroom to tune the trip threshold to the actual load without swapping the breaker frame. ## Undervoltage release and auxiliary switching The HQ contact changes state only on a fault trip (not on manual open), so it can drive a remote alarm or PLC input that distinguishes a deliberate shutdown from a protective trip. The base switch without auxiliaries is order code 3VA2440-5HL32-0AA0. ## Panel fit and thermal management Maximum power loss is 66 W at rated current, which should be factored into enclosure ventilation calculations, especially in a multi-breaker lineup.","metaTitle":"Siemens 3VA2440-5HL32-0DH0 SENTRON MCCB, 400 A, 3-pole, 4800","metaDescription":"Siemens SENTRON 3VA2440-5HL32-0DH0 molded case circuit breaker, 400 A, 3-pole, 4800 A max rating. Breaking capacity 187 kA at 240 V, 121 kA at 415 V. Active production. Sourced to","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"138 mm","Height":"248 mm","Maximum":"4 800 A","Minimum":"600 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":"9 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]":"5.43 in","Height [In]":"9.76 in","Limited To 1 S":"5 kA","Trip Indicator":"Yes","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"Yes","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"66 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA2440-5HL32-0AA0","Design Of The Auxiliary Switch":"2 auxiliary switches + 1 trip alarm switch HQ","Design Of The Auxiliary Release":"undervoltage release (UVR)","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","Of The Integrated Auxiliary Trip Unit":"3VA9608-0BB25","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":"3","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching Capacity Class Of The Circuit Breaker":"M","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=294348&mlfb=3VA2440-5HL32-0DH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2440-5HL32-0DH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2440-5HL32-0DH0 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is the breaking capacity of 3VA2440-5HL32-0DH0 at 415 V?","answer":"At 415 V the breaking capacity is 121 kA. The same 121 kA rating applies at 440 V; at 240 V it rises to 187 kA."},{"question":"Does 3VA2440-5HL32-0DH0 include an undervoltage release?","answer":"Yes, the auxiliary release is an undervoltage release (UVR). The breaker also carries 2 auxiliary switches plus 1 trip alarm switch HQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2440-5HL32-0DH0","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/3VA2440-5HL32-0DH0 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}}