{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2140-7KP32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2140-7KP32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2140-7KP32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2140-7KP32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2140-7KP32-0AA0, molded case circuit breaker, 3-pole, 40 A continuous, ETU850 electronic trip unit, 480 A frame, line protection, 181 x 105 x 86 mm.","salesMarkdown":"The 480 A frame size means it shares the same physical footprint as higher-current siblings, so if you're swapping into an existing panel layout, the 181 mm height, 105 mm width, and 86 mm depth are the dimensions to check against your bus and enclosure space. Rated insulation voltage is 800 V, and the interrupting capacity runs from 330 kA at 240 V down to 3.7 kA at 690 V — numbers that matter for fault-current coordination studies. The ETU850 trip unit is programmable, with communication and measurement functions onboard, so this breaker can report status and power data back to a BMS or PLC without a separate metering module. That's unusual for a molded case breaker and simplifies the panel schedule if you're running near the limit. The 480 A maximum frame rating is the largest plug-in or fixed-mount frame in the 3VA2 family, so this breaker body is physically sized for bus bars and lug kits rated up to that level, even though the trip is set for 40 A. Interrupting ratings: 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3.7 kA at 690 V. For most 400 V-class distribution, the 242 kA figure gives substantial headroom for high-fault locations like substation mains or large motor control centers. ## Deployment context — where this breaker goes This is a line-protection MCCB, so it's the main or feeder breaker in a SENTRON distribution panel, typically on a DIN-rail or mounting plate inside an enclosure. The IP40 front protection means it's suitable for indoor panel mounting where no water spray is present. The ETU850's communication function allows integration with a higher-level energy management system over the breaker's internal bus.","metaTitle":"Siemens 3VA2140-7KP32-0AA0 SENTRON MCCB, 40 A, ETU850, 3-Pol","metaDescription":"Siemens SENTRON 3VA2140-7KP32-0AA0 molded case circuit breaker, 40 A continuous, ETU850 electronic trip, 3-pole, 480 A frame. Current lifecycle. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"86 mm","Width":"105 mm","title":"3VA2140-7KP32-0AA0","Height":"181 mm","Maximum":"480 A","Minimum":"60 A","at 240 V":"330 kA","at 415 V":"242 kA","at 440 V":"242 kA","at 500 V":"187 kA","at 690 V":"3.7 kA","at 40 °C":"40 A","at 45 °C":"40 A","at 50 °C":"40 A","at 55 °C":"40 A","at 60 °C":"40 A","at 65 °C":"40 A","at 70 °C":"40 A","Depth [In]":"3.39 in","Width [In]":"4.13 in","Height [In]":"7.13 in","description":"circuit breaker 3VA2 IEC frame 160 breaking capacity class C Icu=110kA @ 415V 3-pole, line protection ETU850, LSI, In=40A overload protection Ir=16A...40A short-circuit protection Isd=0.6..10x In, Ii=1.5..12x In N conductor protection optionally with external current transformer, up to 160% nut keeper kit","Trip Indicator":"No","Number Of Poles":"3","Voltage Trigger":"No","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":"1.6 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"Yes","Ground-Fault Monitoring Version":"Without","Continuous Current / Rated Value":"40 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; 40% to 160%","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":"160 A","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LSI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"C","Mechanical Service Life (Operating Cycles) / Typical":"25 000","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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/cda978e31ec81fb539d5632cb59bd0b3.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=86727&mlfb=3VA2140-7KP32-0AA0"},"ai":{"faq":[{"question":"Where can I buy 3VA2140-7KP32-0AA0 and 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":"Will 3VA2140-7KP32-0AA0 drop into a panel specified for 3VA2140-8JQ32-0AA0?","answer":"Both share the same 3VA2 frame dimensions (181 x 105 x 86 mm) and 3-pole configuration, so mechanical fit is identical. The difference is the trip unit — the 7KP32 uses an ETU850 electronic trip, while the 8JQ32 variant uses a different trip. Verify the trip curve and settings match your coordination study before swapping."},{"question":"What are the key ratings for this MCCB?","answer":"Continuous current 40 A, frame 480 A, 3-pole, insulation voltage 800 V, interrupting capacity 330 kA at 240 V, 242 kA at 415/440 V, 187 kA at 500 V, and 3.7 kA at 690 V. The ETU850 trip unit includes communication and measurement functions."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2140-7KP32-0AA0","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/3VA2140-7KP32-0AA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}