{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2440-5HL32-0DC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2440-5HL32-0DC0","canonicalUrl":"https://aoctrl.com/siemens/3VA2440-5HL32-0DC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2440-5HL32-0DC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2440-5HL32-0DC0, molded case circuit breaker, 3-pole, 400 A, ETU320 electronic trip unit, line protection, with undervoltage release and 2 auxiliary switches HQ.","salesMarkdown":"## 400 A MCCB with ETU320 — what the ratings mean for panel fit The Siemens 3VA2440-5HL32-0DC0 is a SENTRON molded case circuit breaker (MCCB) rated for 400 A continuous current (Iu) across a 3-pole configuration, making it the main feeder or large-motor protection in a 400 V industrial distribution panel. The ETU320 electronic trip unit gives you adjustable long-time, short-time, instantaneous, and ground-fault protection curves — not a fixed thermal-magnetic response, so coordination studies actually mean something downstream. Breaking capacity is voltage-dependent: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 17 kA at 690 V. At 415 V — the common European industrial supply — 121 kA SCCR means this breaker clears a bolted fault without upstream fuses needing to open, provided the panel bus bracing holds. That is a high-interrupting rating for a 400 A frame; you are not forced into a current-limiting fuse coordination. Thermal derating is published per degree: full 400 A up to 50 °C, then 384 A at 55 °C, 376 A at 60 °C, 368 A at 65 °C, and 360 A at 70 °C. If the panel ambient runs at 55 °C, you lose 16 A of headroom — factor that into the load schedule before committing the BOM line. ## Undervoltage release and auxiliary switching This variant ships with an undervoltage release (UVR) fitted — the basic switch is order code 3VA2440-5HL32-0AA0, and the integrated auxiliary trip is 3VA9608-0BB25. The UVR drops the breaker on loss of control voltage, which is standard for emergency-stop circuits or undervoltage protection on motor feeders. Two auxiliary switches (HQ type) are built in for status feedback to a PLC or remote indication panel. Rated insulation voltage Ui is 800 V, so the breaker is rated for 690 V systems without derating the internal creepage distances. Maximum power loss at rated current is 66 W — plan ventilation accordingly if the MCCB is enclosed in a low-volume pull-box rather than a ventilated switchboard.","metaTitle":"Siemens 3VA2440-5HL32-0DC0 SENTRON MCCB, 400 A, 3-Pole, ETU3","metaDescription":"Siemens 3VA2440-5HL32-0DC0 SENTRON molded case circuit breaker, 400 A rated continuous current, 3-pole, ETU320 electronic trip unit, 187 kA at 240 V. Current 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","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"75.6 kA","at 690 V":"17 kA","at 40 °C":"400 A","at 45 °C":"400 A","at 50 °C":"400 A","at 55 °C":"384 A","at 60 °C":"376 A","at 65 °C":"368 A","at 70 °C":"360 A","Trip indicator":"No","Number of poles":"3","Product version":"Line protection","Voltage trigger":"No","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"Yes","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"66 W","Auxiliary contact version":"2 auxiliary switches HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"400 A","Rated insulation voltage Ui":"800 V","Of The Supplied Basic Switch":"3VA2440-5HL32-0AA0","Design of the auxiliary release":"Undervoltage release (UVR)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9608-0BB25","Design of the overcurrent release":"ETU320","Protection class IP / on the front":"IP40","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"17","Adjustable response value time / tr min.":"0.5","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"400 A","Adjustable response value current / li max.":"4 800 A","Adjustable response value current / li min.":"600 A","Adjustable response value current / lr min.":"160 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"2","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching capacity class of the circuit breaker":"M","Max. rated operational current of the frame size":"630 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"Lug terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"35 x 10","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"20 x 1"}},"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=469749&mlfb=3VA2440-5HL32-0DC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2440-5HL32-0DC0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA2440-5HL32-0DC0?","answer":"Submit an RFQ through this listing. Availability and current pricing are confirmed at quote time through independent distribution channels — no stock count or price is published here."},{"question":"What is the breaking capacity of 3VA2440-5HL32-0DC0 at 415 V?","answer":"121 kA at 415 V and 440 V, 187 kA at 240 V, 75.6 kA at 500 V, and 17 kA at 690 V."},{"question":"What trip unit does the 3VA2440-5HL32-0DC0 use?","answer":"The ETU320 electronic trip unit, which provides adjustable long-time, short-time, instantaneous, and ground-fault protection curves."},{"question":"Does the 3VA2440-5HL32-0DC0 include an undervoltage release?","answer":"Yes, it is fitted with an undervoltage release (UVR) as standard. The basic switch without UVR is order code 3VA2440-5HL32-0AA0."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2440-5HL32-0DC0","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/3VA2440-5HL32-0DC0 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}}