{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-5HN32-0KH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-5HN32-0KH0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-5HN32-0KH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5HN32-0KH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-5HN32-0KH0, molded case circuit breaker, 3-pole, 400 A continuous current, line protection design, 187 kA interrupting at 240 V, 121 kA at 415/440 V.","salesMarkdown":"## Siemens SENTRON 3VA2340-5HN32-0KH0 — 400 A MCCB, Line Protection, High Interrupting Capacity It carries a 187 kA interrupting capacity at 240 VAC, dropping to 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 7.5 kA at 690 V — the high 240 V figure suits it for low-voltage main or feeder duty where fault current is substantial. ## Interrupting Capacity and Selectivity Planning At 415/440 V (common for industrial motor control centers) the rating is still 121 kA, well above typical panel SCCR requirements. Maximum power loss is 96 W — account for that heat in the enclosure ventilation calculation, especially if the breaker is enclosed without forced airflow. Dimensions are 248 mm height, 138 mm width, 110 mm depth — a standard MCCB footprint for 400 A class. Three poles, so it occupies a 138 mm wide slot on the mounting plate. No undervoltage release is fitted (: No), so if your safety circuit requires a UVR, you will need to add one externally or specify a different variant. ## Environmental and Derating At 55 °C it derates to 385 A, at 60 °C to 370 A, at 65 °C to 355 A, and at 70 °C to 340 A.","metaTitle":"Siemens 3VA2340-5HN32-0KH0 SENTRON MCCB, 400 A, 3-Pole, 187","metaDescription":"Siemens SENTRON 3VA2340-5HN32-0KH0 molded case circuit breaker, 400 A continuous, 3-pole, 187 kA interrupting at 240 VAC. Current-production status, sourced to order. Request quote","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":"4 000 A","Minimum":"4 000 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":"7.5 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","Depth [In]":"4.33 in","Width [In]":"5.43 in","Height [In]":"9.76 in","Trip Indicator":"Yes","Number Of Poles":"3","Voltage Trigger":"Yes","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":"96 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA2340-5HN32-0AA0","Design Of The Auxiliary Switch":"2 auxiliary switches + 1 trip alarm switch HQ","Design Of The Auxiliary Release":"shunt trip (STL)","Ground-Fault Monitoring Version":"Without","Continuous Current / Rated Value":"400 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU350","protection class IP / on the front":"IP40","Of The Integrated Auxiliary Trip Unit":"3VA9688-0BL33","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":"400 A","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LSI","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/c1b3b6c5f6d67465025ac41848ceb75e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=483591&mlfb=3VA2340-5HN32-0KH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5HN32-0KH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2340-5HN32-0KH0 and get a price?","answer":"This breaker is sourced to order against an RFQ through independent distribution. Submit a request for quote; availability and current pricing are confirmed at quote time."},{"question":"What is the interrupting capacity of 3VA2340-5HN32-0KH0 at different voltages?","answer":"At 240 V it interrupts 187 kA, at 415 V and 440 V it interrupts 121 kA, at 500 V it interrupts 75.6 kA, and at 690 V it interrupts 7.5 kA. These ratings cover most low-voltage distribution and motor control center applications."},{"question":"Does 3VA2340-5HN32-0KH0 include auxiliary switches or a shunt trip?","answer":"Yes, it is configured with 2 auxiliary switches plus 1 trip alarm switch (HQ design) and a shunt trip release (STL). No undervoltage release is fitted."},{"question":"What is the continuous current rating at elevated ambient temperatures?","answer":"Full 400 A from 40 °C to 50 °C. Derates to 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, and 340 A at 70 °C. Size according to your panel's maximum ambient."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-5HN32-0KH0","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/3VA2340-5HN32-0KH0 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}}