{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-5HN32-0KL0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-5HN32-0KL0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-5HN32-0KL0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5HN32-0KL0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-5HN32-0KL0, molded case circuit breaker, 3-pole, 400 A, 187 kA at 240 V, line protection, ETU350 trip unit, shunt trip, 2 aux + 1 trip alarm + 1 electrical alarm switch.","salesMarkdown":"## 400 A MCCB with 187 kA interrupting capacity — selectivity headroom for high-fault panels The Siemens SENTRON 3VA2340-5HN32-0KL0 is a 3-pole molded case circuit breaker rated for 400 A continuous current at 40 °C ambient, with a maximum interrupting capacity of 187 kA at 240 V AC. That rating drops to 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 17 kA at 690 V — so the breaker's real SCCR headroom depends on the system voltage you're protecting. At 400 A continuous, the 96 W maximum power loss matters for enclosure thermal management; panel builders should account for that when sizing the gland plate and ventilation. The ETU350 electronic trip unit handles line protection with adjustable settings, and the breaker includes a shunt trip release for remote opening. ## Dimensions and panel integration — fits standard 3-pole MCCB footprint The breaker measures 248 mm high by 138 mm wide by 110 mm deep. That width is standard for a 400 A frame 3-pole MCCB; it occupies the same DIN-rail or mounting-plate footprint as other SENTRON 3VA2 frame units. The depth of 110 mm means it clears most standard enclosure depths, but verify gland-plate clearance if the breaker is mounted near the back wall of a shallow cabinet. The 187 kA at 240 V is the headline number, but the 17 kA at 690 V is the binding constraint for 690 V systems. If your panel feeds a 690 V motor drive, this breaker's SCCR at that voltage is 17 kA — coordinate with the upstream transformer or main breaker to ensure the fault current doesn't exceed that. For 400/415 V systems, 121 kA is still generous headroom for most industrial service entrances. ## Temperature derating — the 400 A rating holds through 50 °C Above that, derate linearly: 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, and 340 A at 70 °C. If the breaker is mounted in a high-ambient enclosure near other heat sources, use the 55 °C or 60 °C column for the continuous current limit rather than the 40 °C rating. ## Auxiliary and trip accessories — built-in, no external module needed The shunt trip release (STL) is factory-installed. No undervoltage release, phase failure detection, or communication function is included; this is a straightforward line-protection breaker without network connectivity.","metaTitle":"Siemens 3VA2340-5HN32-0KL0 SENTRON MCCB, 400 A, 187 kA at 24","metaDescription":"Siemens SENTRON 3VA2340-5HN32-0KL0 molded case circuit breaker, 400 A rated, 187 kA breaking at 240 V. Current production. 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":"385 A","at 60 °C":"370 A","at 65 °C":"355 A","at 70 °C":"340 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":"No","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 + 1 electrical alarm switch 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":"3VA2340-5HN32-0AA0","Design of the auxiliary release":"Shunt trip (STL)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9688-0BL33","Design of the overcurrent release":"ETU350","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.":"4 000 A","Adjustable response value current / li min.":"4 000 A","Adjustable response value current / lr min.":"160 A","Adjustable response value current / Isd max.":"0 A","Adjustable response value current / Isd min.":"0 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"4","Protective function of the overcurrent release":"LSI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB22","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=440097&mlfb=3VA2340-5HN32-0KL0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5HN32-0KL0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2340-5HN32-0KL0 and how do I get a price?","answer":"This MCCB 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 commercial offer."},{"question":"What is the breaking capacity of 3VA2340-5HN32-0KL0 at different voltages?","answer":"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. The 690 V figure is the binding constraint for high-voltage systems."},{"question":"Does 3VA2340-5HN32-0KL0 include a shunt trip?","answer":"Yes, it includes a factory-installed shunt trip release (STL) for remote opening, plus 2 auxiliary switches, 1 trip alarm switch, and 1 electrical alarm switch."},{"question":"What compliance documentation is available for this SENTRON MCCB?","answer":"As a current-production Siemens SENTRON product, it carries the standard IEC/UL certifications for molded case circuit breakers. Specific RoHS, REACH, and UL documentation is provided with the shipment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-5HN32-0KL0","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/3VA2340-5HN32-0KL0 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}}