{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-5KP32-0HH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-5KP32-0HH0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-5KP32-0HH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5KP32-0HH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-5KP32-0HH0, molded case circuit breaker, 3-pole, 400 A, 187 kA at 240 V, line protection, ETU850 release, shunt trip, current lifecycle.","salesMarkdown":"## What the ratings mean for fit The Siemens 3VA2340-5KP32-0HH0 is a SENTRON molded case circuit breaker (MCCB) rated for a continuous current Iu of 400 A, meaning it handles that load continuously without tripping under normal conditions — the key figure for sizing the main feeder in a distribution panel or as an incoming breaker on a switchboard. Breaking capacity is the real selector: 187 kA at 240 V AC tells you this breaker can safely interrupt a fault current up to that level without welding contacts or venting arc gas into the enclosure — essential when the available fault current at the service entrance is high. At 415 V and 440 V it still holds 121 kA, and at 690 V it drops to 17 kA, so the voltage class of your system decides which rating governs the installation. The thermal derating curve matters for panel placement: the breaker holds its full 400 A up to 50 °C ambient, then steps down to 375 A at 55 °C, 350 A at 60 °C, 325 A at 65 °C, and 300 A at 70 °C. If your panel runs hot — say near a drive stack or in a non-ventilated cabinet — you need to apply that derating or upsize the frame. The ETU850 electronic trip unit provides adjustable protection curves (LSI or LSIG depending on configuration), and the shunt trip (STL) design allows remote tripping via a control signal — useful for emergency-stop circuits or supervisory shutdown. The auxiliary contact block carries 2 auxiliary switches plus 1 trip alarm switch (HQ version), giving the PLC or BMS a positive indication of breaker state and fault events. ## Sourcing and lifecycle reality Maximum power loss is 96 W at rated current — that is heat that must be dissipated inside the enclosure. When laying out a panel with multiple 400 A frames, factor that into your thermal budget and ventilation sizing. ## Panel integration and mounting Dimensions are 248 mm high, 138 mm wide, 110 mm deep — a standard MCCB footprint that fits most distribution panelboards and switchboard cubicles. The 3-pole construction with line protection version (not feeder protection) means it is intended for the incoming mains position or a large subfeed, not a motor branch circuit. Operating temperature range is -25 °C to 70 °C, storage from -40 °C to 80 °C. That covers most indoor industrial environments and unheated warehouses; if the breaker sits in a refrigerated space or near a furnace, the lower and upper limits still hold. The communication function and other measurement function indicate this variant supports optional communication modules for remote monitoring and energy metering — useful for a facility looking to integrate breaker data into a building management or SCADA system without adding separate current transformers.","metaTitle":"Siemens 3VA2340-5KP32-0HH0 SENTRON MCCB, 400A, 187kA at 240V","metaDescription":"Siemens 3VA2340-5KP32-0HH0 SENTRON molded case circuit breaker, 400 A rated, 187 kA breaking at 240 V. Current lifecycle. Quoted to order against RFQ.","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":"375 A","at 60 °C":"350 A","at 65 °C":"325 A","at 70 °C":"300 A","Trip indicator":"Yes","Number of poles":"3","Product version":"Line protection","Voltage trigger":"Yes","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"No","Communication Function":"Yes","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"96 W","Auxiliary contact version":"2 auxiliary switches + 1 trip alarm switch HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"Yes","Rated continuous current Iu":"400 A","Rated insulation voltage Ui":"800 V","Of The Supplied Basic Switch":"3VA2340-5KP32-0AA0","Design of the auxiliary release":"Shunt trip (STL)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9688-0BL30","Design of the overcurrent release":"ETU850","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","Adjustable response value time / tsd max.":"0.5 s","Adjustable response value time / tsd min.":"0.05 s","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.":"4 000 A","Adjustable response value current / li min.":"600 A","Adjustable response value current / lr min.":"160 A","Adjustable response value current / Isd max.":"4 000 A","Adjustable response value current / Isd min.":"240 A","Neutral conductors / upgradeable/retrofittable":"Yes","Number of CO contacts / for auxiliary contacts":"3","Protective function of the overcurrent release":"LSI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching capacity class of the circuit breaker":"M","Max. rated operational current of the frame size":"400 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/c1b3b6c5f6d67465025ac41848ceb75e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=360066&mlfb=3VA2340-5KP32-0HH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5KP32-0HH0/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of 3VA2340-5KP32-0HH0?","answer":"The depth is 110 mm. Combined with a height of 248 mm and width of 138 mm, it fits standard MCCB panel cutouts."},{"question":"Does 3VA2340-5KP32-0HH0 include a shunt trip?","answer":"Yes, the design of the auxiliary release is a shunt trip (STL), allowing remote tripping via a control voltage. The integrated auxiliary trip is order code 3VA9688-0BL30."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-5KP32-0HH0","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/3VA2340-5KP32-0HH0 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}}