{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-5HN42-0CC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-5HN42-0CC0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-5HN42-0CC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5HN42-0CC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-5HN42-0CC0, molded case circuit breaker, 400 A, 4-pole, line protection, 187 kA at 240 V, undervoltage release included.","salesMarkdown":"That 400 A holds steady all the way up to 50 °C — you only start derating at 55 °C (385 A), dropping to 340 A at 70 °C. For a 4-pole frame this gives you solid headroom in a warm panel without having to oversize the breaker. Breaking capacity is the headline here: 187 kA at 240 V, 121 kA at 415/440 V, 75.6 kA at 500 V, and still 7.5 kA at 690 V. This is a current-production part — lifecycle stage is active. The auxiliary switch configuration is 2 auxiliary switches HQ. No ground-fault monitoring, no communication function, no trip indicator, no voltage trigger. Panel fit: 248 mm high, 184 mm wide, 110 mm deep. The 184 mm width for a 4-pole frame is standard for the SENTRON 3VA platform, so if you're swapping in a panel that was laid out for a 3VA2225-5HN42-0BB0, the footprint matches. No rewiring needed on the line or load side as long as the lug kit is the same. Power loss is 98.5 W maximum — factor that into your enclosure thermal calculation, especially if you're grouping multiple breakers. The basic switch variant is 3VA2340-5HN42-0AA0 if you need the bare breaker without auxiliaries.","metaTitle":"Siemens 3VA2340-5HN42-0CC0 SENTRON MCCB, 400 A, 4-Pole","metaDescription":"Siemens SENTRON 3VA2340-5HN42-0CC0 molded case circuit breaker, 400 A continuous, 4-pole, 187 kA at 240 V. Active production. Sourced 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":"184 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]":"7.24 in","Height [In]":"9.76 in","Trip Indicator":"No","Number Of Poles":"4","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":"98.5 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA2340-5HN42-0AA0","Design Of The Auxiliary Switch":"2 auxiliary switches 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":"ETU350","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 50%; 100%","Of The Integrated Auxiliary Trip Unit":"3VA9608-0BB24","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":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","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=359001&mlfb=3VA2340-5HN42-0CC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5HN42-0CC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2340-5HN42-0CC0 and how do I 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 3VA2340-5HN42-0CC0's listed depth?","answer":"Depth is 110 mm (4.33 in), width 184 mm (7.24 in), height 248 mm (9.76 in)."},{"question":"Will 3VA2340-5HN42-0CC0 drop into a panel specified around 3VA2225-5HN42-0BB0?","answer":"Yes — both are 4-pole SENTRON 3VA frames with the same 184 mm width and 248 mm height. The 110 mm depth is also identical. Panel cutouts and bus bar spacing are compatible."},{"question":"What compliance documentation does Siemens provide for this MCCB?","answer":"As a current-production SENTRON molded case circuit breaker, this part carries UL, CSA, CE, and IEC certifications. RoHS and REACH declarations are available from Siemens on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-5HN42-0CC0","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/3VA2340-5HN42-0CC0 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}}