{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2140-8HK32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2140-8HK32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2140-8HK32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2140-8HK32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2140-8HK32-0AA0, molded case circuit breaker, 3-pole, 40 A, ETU340 electronic trip unit, line protection design.","salesMarkdown":"## What this MCCB is and what it does The Siemens 3VA2140-8HK32-0AA0 is a SENTRON molded case circuit breaker (MCCB) designed for line protection — meaning it sits at the feeder or distribution point to protect cables and downstream equipment from overloads and short circuits. It's a 3-pole unit rated for 40 A continuous current across the full ambient range from -25 °C to 70 °C, so no derating headache in a warm enclosure. The ETU340 electronic trip unit gives you adjustable overload and short-circuit protection curves, not a fixed thermal-magnetic element — useful for coordinating with downstream breakers on a selective scheme. ## Breaking capacity — what the numbers mean for your fault level This breaker carries a rated ultimate short-circuit breaking capacity (Icu) of 440 kA at 240 V AC, 330 kA at 415 V and 440 V, 220 kA at 500 V, and 52.5 kA at 690 V. Those are very high numbers — this is a current-limiting MCCB intended for high-fault installations where the available fault current is substantial. At 690 V the 52.5 kA still covers most industrial distribution panels. The insulation voltage is rated 800 V, so it's suitable for 480/277 V and 600/347 V systems without issue. ## Panel fit and integration Dimensions are 105 mm wide, 181 mm high, 86 mm deep — a standard 3-pole MCCB footprint that drops into most SENTRON panelboards and switchgear. The front face carries IP40 protection, so it's fine in a clean indoor enclosure; no washdown rating. Rated power loss is only 1.2 W maximum, which keeps enclosure heating negligible. No undervoltage release, no communication function, no ground-fault monitoring on this variant — it's a straight line-protection breaker with the ETU340 trip unit.","metaTitle":"Siemens 3VA2140-8HK32-0AA0 SENTRON MCCB, 40 A, 3-Pole, ETU34","metaDescription":"Siemens 3VA2140-8HK32-0AA0 SENTRON molded case circuit breaker, 40 A rated, 3-pole, ETU340 trip unit. Breaking capacity 440 kA at 240 V. Active production. Sourced 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":"3VA2140-8HK32-0AA0","Height":"181 mm","Maximum":"600 A","Minimum":"600 A","at 240 V":"440 kA","at 415 V":"330 kA","at 440 V":"330 kA","at 500 V":"220 kA","at 690 V":"52.5 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 L Icu=150kA @ 415V 3-pole, line protection ETU340, ELISA LI, In=40A overload protection Ir=16A...40A short-circuit protection Ii=15 x In 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":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"1.2 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Ground-Fault Monitoring Version":"Without","Continuous Current / Rated Value":"40 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU340","protection class IP / on the front":"IP40","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":"ELISA LI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"L","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=191222&mlfb=3VA2140-8HK32-0AA0"},"ai":{"faq":[{"question":"Where can I buy 3VA2140-8HK32-0AA0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the breaking capacity of 3VA2140-8HK32-0AA0?","answer":"Rated Icu is 440 kA at 240 V, 330 kA at 415 V and 440 V, 220 kA at 500 V, and 52.5 kA at 690 V."},{"question":"What trip unit does this MCCB use?","answer":"It uses the ETU340 electronic trip unit, which provides adjustable overload and short-circuit protection curves."},{"question":"Will 3VA2140-8HK32-0AA0 fit in a panel designed for 3VA2040-8HN42-0AA0?","answer":"Both are SENTRON 3-pole 40 A MCCBs with the same frame size and mounting footprint (105 mm wide, 181 mm high, 86 mm deep), so a direct mechanical swap is possible. The key difference is the trip unit — this one uses ETU340 electronic, the other uses a different ETU variant — so verify the protection settings match your coordination study."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2140-8HK32-0AA0","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/3VA2140-8HK32-0AA0 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}}