{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-5KP42-0JC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-5KP42-0JC0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-5KP42-0JC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5KP42-0JC0","rawCanonicalId":null},"summary":{"shortDescription":"SENTRON 3VA2340-5KP42-0JC0, 4-pole molded case circuit breaker, 400 A, ETU850 electronic trip unit, 187 kA at 240 V, line protection version with shunt trip and 2 auxiliary switches.","salesMarkdown":"## Breaking capacity — what it means for your fault bus This breaker delivers 187 kA at 240 V, 121 kA at 415 V, and still 55 kA at 440 V — numbers that put it in the high-interrupting class for industrial switchboards where fault current can stack from multiple transformers or parallel feeders. ## Fit and panel integration The 184 mm width × 248 mm height × 110 mm depth footprint matches the 3VA2 platform, so if you're replacing a failed unit or adding a feeder in an existing SENTRON lineup, the bus-bar centers and terminal positions line up without re-drilling the backplate. Comes with 2 auxiliary switches (HQ type) and a shunt trip (STL) pre-installed — no field-kit wiring for remote tripping or status feedback. The front face is IP40 rated, enough for a clean indoor panel; keep it out of washdown zones unless you add a cover.","metaTitle":"SENTRON 3VA2340-5KP42-0JC0 4-Pole MCCB, 400 A, ETU850, 187 k","metaDescription":"SENTRON 3VA2340-5KP42-0JC0 molded case circuit breaker, 4-pole, 400 A at 40 °C, ETU850 electronic release, 187 kA at 240 V. Active production, 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":"184 mm","Height":"248 mm","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"55 kA","at 500 V":"36 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]":"4.3 in","Width [In]":"7.2 in","Height [In]":"9.8 in","Trip Indicator":"No","Number Of Poles":"4","Product version":"Line protection","Voltage Trigger":"Yes","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Communication Function":"Yes","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"96 W","Auxiliary contact version":"2 auxiliary switches HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"Yes","Of The Supplied Basic Switch":"3VA22256HL320AA0","Design Of The Auxiliary Release":"Shunt trip (STL)","Ground-Fault Monitoring Version":"Without","Tension assignée d'isolement Ui":"800 V","Design Of The Overcurrent Release":"ETU850","protection class IP / on the front":"IP40","reference code / acc. to IEC 81346-2":"Q","Of The Integrated Auxiliary Trip Unit":"3VA9688-0BL32","Undervoltage Release With Leading Contact":"No","Product Extension / Optional / Motor Drive":"Yes","Adjustable response value current / lg min.":"0.5 s","Adjustable response value current / li max.":"4 000 A","Adjustable response value current / li min.":"600 A","Neutral conductors / upgradeable/retrofittable":"No","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 (Switching 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","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=1420134&mlfb=3VA2340-5KP42-0JC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5KP42-0JC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2340-5KP42-0JC0 and get a price?","answer":"This part is available to quote through independent distribution. Submit an RFQ with your target quantity and delivery window; we confirm availability and current pricing at quote time — no automated stock figures here."},{"question":"What is the closest functional second-source to 3VA2340-5KP42-0JC0?","answer":"The peer codes 5SQ2670-2YA06, 5SQ2670-2YA63, and 5SQ2670-2YA16 are functionally similar 4-pole MCCBs in the same current class, but the 3VA2 platform uses the ETU850 electronic trip unit with LSI curves and communication capability — the 5SQ series is a different trip architecture. Verify selectivity and auxiliary wiring before swapping."},{"question":"What compliance documentation does this brand provide for 3VA2340-5KP42-0JC0?","answer":"SENTRON circuit breakers carry UL 489, IEC 60947-2, and CSA C22.2 No. 5 certifications. RoHS and REACH declarations are available from Siemens documentation. The ETU850 release is UL-recognized for ground-fault alarm applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-5KP42-0JC0","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/3VA2340-5KP42-0JC0 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}}