{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-5KP32-0JH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-5KP32-0JH0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-5KP32-0JH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5KP32-0JH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-5KP32-0JH0, molded case circuit breaker, 3-pole, 400 A continuous, line protection design, 187 kA breaking capacity at 240 V, with communication function and auxiliary switches.","salesMarkdown":"The Siemens SENTRON 3VA2340-5KP32-0JH0 is a 3-pole molded case circuit breaker rated for 400 A continuous at 40 °C, designed for line protection — meaning it sits at the feeder or main distribution point, not downstream on a motor branch. ## Breaking capacity — the number that decides fault clearance Rated 187 kA at 240 V AC, 121 kA at 415/440 V, 75.6 kA at 500 V, and 7.5 kA at 690 V. That 187 kA figure at 240 V means this breaker clears a bolted fault on a 240 V secondary bus without upstream fuses — it's self-protected for high available fault current common in industrial step-down transformers. At 690 V the 7.5 kA rating drops sharply; if your system runs 690 V with SCCR above that, you need a current-limiting upstream device or a higher-rated frame. ## Temperature derating — the real-world continuous current Full 400 A holds from 40 °C through 50 °C ambient. Above that: 375 A at 55 °C, 350 A at 60 °C, 325 A at 65 °C, 300 A at 70 °C. If your panel internal ambient runs 60 °C (common in sealed enclosures with solar load or adjacent heat sources), you lose 50 A of headroom — size your load accordingly. The breaker itself operates up to 70 °C ambient and stores from -40 °C to 80 °C. Current production — no phase-out notice on this order code. The 3VA2340-5KP32-0JH0 is an active catalog line in the SENTRON family, so standard factory lead times apply. Dimensions: 248 mm height, 138 mm width, 110 mm depth. The 138 mm width is standard for a 3-pole SENTRON 3VA2 frame; it mounts on a backplate or DIN rail via the factory mounting bracket.","metaTitle":"3VA2340-5KP32-0JH0 SENTRON MCCB, 400 A, 3-pole, line protect","metaDescription":"Siemens SENTRON 3VA2340-5KP32-0JH0 molded case circuit breaker, 400 A continuous, 3-pole, 187 kA at 240 V. Current production. Available 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","Maximum":"4 000 A","Minimum":"600 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":"375 A","at 60 °C":"350 A","at 65 °C":"325 A","at 70 °C":"300 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":"Yes","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":"Yes","Of The Supplied Basic Switch":"3VA2340-5KP32-0AA0","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":"ETU850","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 20% to 160%","Of The Integrated Auxiliary Trip Unit":"3VA9688-0BL32","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=90221&mlfb=3VA2340-5KP32-0JH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5KP32-0JH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2340-5KP32-0JH0 and how do I get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing — stock and lead time are confirmed at quote time, not listed here."},{"question":"When sourcing 3VA2340-5KP32-0JH0, what's the closest functional second-source?","answer":"The 3VA1110-5EF32-0AM0 is a smaller-frame SENTRON MCCB (100 A frame, not 400 A) and will not drop into the same panel cutout or bus connection without rewiring. The 3VA2340-5KP32-0JH0 is the 400 A frame with shunt trip and communication; if you need a functional peer at the same rating, stay within the 3VA2 frame family."},{"question":"What is 3VA2340-5KP32-0JH0's listed depth?","answer":"110 mm body depth. That is the breaker housing only; allow additional clearance for the shunt trip wiring and communication connector behind the panel."},{"question":"What is 3VA2340-5KP32-0JH0's listed width?","answer":"138 mm, standard for the 3-pole SENTRON 3VA2 frame. Matches the existing backplate footprint for this frame size."},{"question":"Will 3VA2340-5KP32-0JH0 drop into a panel specified around 3VA1110-5EF32-0AM0 without rewiring?","answer":"No. The 3VA1110 is a 100 A frame with different mounting hole pattern and bus bar spacing. The 3VA2340 is a physically larger 400 A frame — 138 mm wide vs the 3VA1's narrower width. Panel cutout and bus connections must be reworked."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-5KP32-0JH0","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/3VA2340-5KP32-0JH0 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}}