{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2140-5MN32-0JC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2140-5MN32-0JC0","canonicalUrl":"https://aoctrl.com/siemens/3VA2140-5MN32-0JC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2140-5MN32-0JC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2140-5MN32-0JC0, molded case circuit breaker, 3-pole, 40 A, motor protection, ETU350M electronic trip unit, 187 kA at 240 V.","salesMarkdown":"The Siemens 3VA2140-5MN32-0JC0 is a 3-pole SENTRON molded case circuit breaker rated for 40 A continuous current at 40 °C, purpose-built for motor protection with the ETU350M electronic trip unit. That 40 A holds flat through 50 °C — only above 55 °C does it begin to derate, reaching 36 A at 70 °C, so in a warm panel you still get nearly full rating. The ETU350M includes phase failure detection, which is the main reason you reach for a motor-protection MCCB over a standard thermal-magnetic: it catches a lost phase before the motor overheats. Breaking capacity is the other headline: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 17 kA at 690 V. Two HQ auxiliary switches are built in, so you get status feedback without an add-on module.","metaTitle":"Siemens 3VA2140-5MN32-0JC0 SENTRON MCCB, 40 A, 3-Pole, Motor","metaDescription":"Siemens 3VA2140-5MN32-0JC0 SENTRON molded case circuit breaker, 40 A rated at 40 °C, 3-pole, motor protection with ETU350M trip unit. Breaking capacity 187 kA at 240 V. Active prod","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"86 mm","Width":"105 mm","Height":"181 mm","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"75.6 kA","at 690 V":"17 kA","at 40 °C":"40 A","at 45 °C":"40 A","at 50 °C":"40 A","at 55 °C":"38.4 A","at 60 °C":"37.6 A","at 65 °C":"36.8 A","at 70 °C":"36 A","Trip indicator":"No","Number of poles":"3","Product version":"Motor protection","Voltage trigger":"Yes","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"20 000","Undervoltage Release":"No","Communication Function":"No","Phase failure detection":"Yes","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"75 W","Auxiliary contact version":"2 auxiliary switches HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"40 A","Rated insulation voltage Ui":"800 V","Of The Supplied Basic Switch":"3VA2140-5MN32-0AA0","Design of the auxiliary release":"Shunt trip (STL)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9688-0BL32","Design of the overcurrent release":"ETU350M","Protection class IP / on the front":"IP40","Operating power / at AC-3 / at 400 V":"15 W","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"17","Adjustable response value time / tr min.":"4","Adjustable response value time / tsd max.":"0.03 s","Adjustable response value time / tsd min.":"0.03 s","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"40 A","Adjustable response value current / li max.":"600 A","Adjustable response value current / li min.":"600 A","Adjustable response value current / lr min.":"16 A","Adjustable response value current / Isd max.":"600 A","Adjustable response value current / Isd min.":"120 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"2","Protective function of the overcurrent release":"LSI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching capacity class of the circuit breaker":"M","Max. rated operational current of the frame size":"160 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"Lug terminal","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/cda978e31ec81fb539d5632cb59bd0b3.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=569508&mlfb=3VA2140-5MN32-0JC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2140-5MN32-0JC0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA2140-5MN32-0JC0 at 240 V?","answer":"187 kA at 240 V, which is exceptionally high for a 40 A frame — it can clear a fault at the full available current of a large transformer secondary without upstream fusing."},{"question":"Where can I buy 3VA2140-5MN32-0JC0?","answer":"Sourced and quoted to order against an RFQ through independent distribution, with availability and current pricing confirmed at quote time."},{"question":"What is the rated continuous current of this MCCB at 40 °C?","answer":"40 A at 40 °C, and it holds that rating flat through 50 °C. Derating begins at 55 °C (38.4 A) down to 36 A at 70 °C."},{"question":"Does 3VA2140-5MN32-0JC0 include phase failure detection?","answer":"Yes, the ETU350M electronic trip unit includes phase failure detection — a key feature for motor protection that catches a lost phase before the motor overheats."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2140-5MN32-0JC0","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/3VA2140-5MN32-0JC0 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}}