{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2140-5MN32-0JA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2140-5MN32-0JA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2140-5MN32-0JA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2140-5MN32-0JA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2140-5MN32-0JA0, 3-pole molded case circuit breaker, motor protection, 40 A rated continuous current, ETU350M electronic trip unit, shunt trip (STL), interrupting capacity 187 kA at 240 V, 121 kA at 415 V.","salesMarkdown":"The Siemens SENTRON 3VA2140-5MN32-0JA0 is a 3-pole molded case circuit breaker (MCCB) built for motor protection, rated 40 A continuous current (Iu) at up to 50 °C ambient — above that it derates to 38.4 A at 55 °C and 36 A at 70 °C, so if your panel runs hot, that 40 A nameplate shrinks. Interrupting capacity is the headline here: 187 kA at 240 V, 121 kA at 415/440 V, 75.6 kA at 500 V, and 17 kA at 690 V. At 690 V the 17 kA still covers most motor branch circuits. The base switch is 3VA2140-5MN32-0AA0. No auxiliary contacts, no undervoltage release, no ground-fault module on this variant. If you need those, this isn't the order code. Maximum power loss is 75 W — that's the heat it dumps into the enclosure at full rated current. If you're packing several of these in a sealed cabinet, factor that into your thermal calculation. ## Operating range and storage Mechanical endurance is 20,000 cycles (latching).","metaTitle":"Siemens 3VA2140-5MN32-0JA0 SENTRON MCCB, 40A, 187kA at 240V","metaDescription":"Siemens SENTRON 3VA2140-5MN32-0JA0 molded case circuit breaker, 40A rated, 3-pole motor protection with ETU350M trip unit. Interrupting capacity 187kA at 240V. Active production. Q","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":"Without","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":"0","Protective function of the overcurrent release":"LSI","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=569507&mlfb=3VA2140-5MN32-0JA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2140-5MN32-0JA0/alternatives.json"},"ai":{"faq":[{"question":"What trip unit does this MCCB use?","answer":"It uses the ETU350M electronic trip unit with adjustable overload and short-circuit protection, plus phase failure detection."},{"question":"What are the physical dimensions of 3VA2140-5MN32-0JA0?","answer":"105 mm wide, 181 mm high, 86 mm deep — standard SENTRON 3VA2 frame footprint."},{"question":"Does 3VA2140-5MN32-0JA0 include a shunt trip?","answer":"Yes, it includes a shunt trip (STL) release, part number 3VA9688-0BL32, for remote tripping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2140-5MN32-0JA0","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/3VA2140-5MN32-0JA0 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}}