{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VM1140-4EE42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VM1140-4EE42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VM1140-4EE42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VM1140-4EE42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VM1140-4EE42-0AA0, 4-pole molded case circuit breaker, 40 A rated continuous current, TM220 thermal-magnetic release, line protection version, IP40 front protection.","salesMarkdown":"The interrupting ratings tell the real story: 121 kA at 240 VAC, 76 kA at 415 VAC, 53 kA at 440 VAC, and 11.9 kA at 500 VAC. At 415 V the 76 kA rating still covers most industrial service-entrance conditions. Thermal derating is minimal through 50 °C — it holds 40 A flat. Above that it drops gradually: 39 A at 55 °C and 60 °C, 38 A at 65 °C, 37 A at 70 °C. The insulation voltage rating is 690 V, and it can handle up to 500 V DC on the DC side. The 3VM1140-4EE42-0AA0 measures 70 mm deep, 101.6 mm wide, and 130 mm tall. That 101.6 mm width — exactly 4 inches — fits standard MCCB mounting footprints in distribution panels. Depth of 70 mm means it clears most shallow enclosures without needing a gland-plate extension. Front protection is IP40, so it's fine for indoor panels but not washdown environments. Maximum power loss is 10.8 W per pole — total about 43 W for the four-pole unit. That's modest, but in a densely packed panel with multiple breakers, the cumulative heat needs to be vented. No communication module, no motor drive option, no ground-fault monitoring on this version — it's a straight thermal-magnetic breaker with no add-on accessories. Latching endurance is rated at 12,000 operations — that's the mechanical life before the latching mechanism wears. For a main breaker that sees a few operations a year, that's effectively lifetime. For a frequently switched disconnect, it's a limit to track.","metaTitle":"SENTRON 3VM1140-4EE42-0AA0 MCCB, 40 A, 4-Pole, 121 kA at 240","metaDescription":"Siemens SENTRON 3VM1140-4EE42-0AA0 molded case circuit breaker, 40 A continuous, 4-pole, TM220 release. 121 kA at 240 VAC. 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":"70 mm","Width":"101.6 mm","title":"3VM1140-4EE42-0AA0","Height":"130 mm","at 240 V":"121 kA","at 415 V":"76 kA","at 440 V":"53 kA","at 500 V":"11.9 kA","at 40 °C":"40 A","at 45 °C":"40 A","at 50 °C":"40 A","at 55 °C":"39 A","at 60 °C":"39 A","at 65 °C":"38 A","at 70 °C":"37 A","Depth [in]":"2.8 in","Width [in]":"4 in","Height [in]":"5.1 in","description":"circuit breaker 3VM1 IEC frame 160 breaking capacity class S Icu=36kA @ 415V 4-pole, line protection TM220, ATFM, In=40A overload protection Ir=28A...40A short-circuit protection Ii=10 x In N conductor unprotected nut keeper kit","Number of poles":"4","Product version":"Line protection","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"12 000","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"10.8 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"40 A","Rated insulation voltage Ui":"690 V","Ground fault monitoring version":"Without","Design of the overcurrent release":"TM220","Protection class IP / on the front":"IP40","Design of the N-conductor protection":"Without","Reference code / acc. to DIN EN 81346-2":"Q","Max. rated operational voltage Ue with DC":"500 V","Product extension / optional / motor drive":"No","Adjustable response value current / Ir max.":"40 A","Adjustable response value current / li max.":"400 A","Adjustable response value current / li min.":"400 A","Adjustable response value current / lr min.":"28 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"0","Protective function of the overcurrent release":"LI","Switching capacity class of the circuit breaker":"S","Max. rated operational current of the frame size":"160 A","Max. rated operational voltage Ue with AC 50/60Hz":"500 V","Type of electrical connection / for main current circuit":"lug terminal","Arrangement of electrical connectors / for main current circuit":"Front connection","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"17 x 6,5","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"12 x 0"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/be82629451abee9fe4aefb8d0544915b.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=575502&mlfb=3VM1140-4EE42-0AA0"},"ai":{"faq":[{"question":"Where can I buy 3VM1140-4EE42-0AA0 and how do I 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."},{"question":"What are the interrupting ratings for 3VM1140-4EE42-0AA0?","answer":"121 kA at 240 VAC, 76 kA at 415 VAC, 53 kA at 440 VAC, and 11.9 kA at 500 VAC."},{"question":"What is the rated continuous current and how does it derate with temperature?","answer":"Rated 40 A continuous. It holds 40 A through 50 °C, then drops to 39 A at 55 °C and 60 °C, 38 A at 65 °C, and 37 A at 70 °C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VM1140-4EE42-0AA0","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/3VM1140-4EE42-0AA0 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}}