{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-7KP32-0AL0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-7KP32-0AL0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-7KP32-0AL0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7KP32-0AL0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-7KP32-0AL0, 3-pole molded case circuit breaker, 640 A maximum, ETU850 electronic trip unit, breaking capacity 330 kA at 240 V AC.","salesMarkdown":"Its adjustable overload range — 80 A minimum up to 640 A maximum — means it can be set to protect a transformer secondary, a bus riser, or a large motor feeder without swapping the breaker frame. The ETU850 gives you curve shaping (LI, LSI, LSIG via optional modules), so selectivity with downstream breakers is programmable, not guesswork. ## Breaking capacity — what the voltage tiers tell you The interrupting rating changes sharply with system voltage. At 240 V it clears 330 kA symmetrical — enough for a high-capacity transformer secondary. At 500 V the rating drops to 187 kA, and at 690 V it falls to 7.5 kA. ## Thermal derating — the real-world current limit Above 50 °C the current must be derated: 375 A at 55 °C, 350 A at 60 °C, 325 A at 65 °C, and 300 A at 70 °C. If your panel ambient runs 60 °C, the usable setting is 350 A, not 640 A. ## Auxiliary and alarm switch complement No undervoltage release is fitted; no ground-fault monitoring module is included. The 3VA2340-7KP32-0AL0 is listed as current-production (active lifecycle). It is part of the Siemens SENTRON 3VA series, which is the current generation replacing the earlier 3VL series. No successor has been announced. ## Physical fit — dimensions and panel integration Dimensions are 248 mm height, 138 mm width, 110 mm depth. It mounts via four screws to a mounting plate or rear panel — no DIN rail. The 110 mm depth includes the rear terminals; allow additional clearance for cable bending radius below the breaker.","metaTitle":"Siemens 3VA2340-7KP32-0AL0 SENTRON MCCB, 640 A, ETU850","metaDescription":"Siemens 3VA2340-7KP32-0AL0 SENTRON molded case circuit breaker, 3-pole, 640 A max, ETU850 electronic trip unit, 330 kA at 240 V. Current production. Sourced to order.","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":"640 A","Minimum":"80 A","at 240 V":"330 kA","at 415 V":"242 kA","at 440 V":"242 kA","at 500 V":"187 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":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Undervoltage Release":"No","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":"#BEZUG!","Design Of The Auxiliary Switch":"2 auxiliary switches + 1 trip alarm switch + 1 electrical alarm switch HQ","Design Of The Auxiliary Release":"Without auxiliary release","Ground-Fault Monitoring Version":"Without","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%","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LSI","number of CO contacts / for auxiliary contacts":"4","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB22","Switching Capacity Class Of The Circuit Breaker":"C","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=1502635&mlfb=3VA2340-7KP32-0AL0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7KP32-0AL0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA2340-7KP32-0AL0 at 415 V?","answer":"At 415 V AC the interrupting rating is 242 kA symmetrical."},{"question":"What is the closest functional second-source to 3VA2340-7KP32-0AL0?","answer":"The 3VA2116-5JP32-0AE0 is a smaller-frame 3VA series breaker (160 A max) and will not drop into the same panel cutout or bus connection without adapter hardware. The 3VA2340-7KP32-0AL0 is the correct frame for the 640 A rating."},{"question":"Where can I buy 3VA2340-7KP32-0AL0?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-7KP32-0AL0","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/3VA2340-7KP32-0AL0 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}}