{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1110-3FF42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1110-3FF42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1110-3FF42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1110-3FF42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1110-3FF42-0AA0, molded case circuit breaker, 4-pole, 100 A, TM240 thermal-magnetic release, breaking capacity 76 kA at 240 V AC, line protection version, IP40 front.","salesMarkdown":"The Siemens 3VA1110-3FF42-0AA0 is a 4-pole SENTRON molded case circuit breaker rated for 100 A continuous current (Iu) with a TM240 thermal-magnetic release — meaning the thermal element is fixed at 100 A and the magnetic pickup is set at 240 A, a common combination for feeder or distribution protection where you want a wide margin between full-load current and short-circuit trip threshold. Breaking capacity is the headline number that decides whether this breaker holds under fault: 76 kA at 240 V AC, 53 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V. The 76 kA at 240 V gives headroom for high-fault panels close to the service entrance. Thermal derating is gradual: holds 100 A up to 50 °C ambient, then drops to 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, and 91 A at 70 °C. ## Lifecycle and sourcing posture — active, not a legacy hunt For a maintenance spares buyer, this is the kind of breaker you keep one in the cabinet for — it's a common 100 A 4-pole frame that backs up dozens of panel builds. The endurance rating of 20 000 operations (mechanical) gives a reasonable service life for a distribution breaker that sees infrequent switching. Dimensions are 101.6 mm wide, 130 mm high, 70 mm deep — the 101.6 mm width is a standard 4-pole MCCB footprint (about 4 inches), so it drops into a DIN-rail or panel-mount base without surprises. No communication module on this version; it's a straight electromechanical breaker with no integrated metering or fieldbus.","metaTitle":"Siemens 3VA1110-3FF42-0AA0 SENTRON MCCB, 100 A, 4-Pole, 76 k","metaDescription":"Siemens 3VA1110-3FF42-0AA0 SENTRON molded case circuit breaker, 100 A, 4-pole, TM240 release, 76 kA at 240 V. Active production. Sourced to order against RFQ.","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":"3VA1110-3FF42-0AA0","Height":"130 mm","at 240 V":"76 kA","at 415 V":"53 kA","at 440 V":"32 kA","at 500 V":"11.9 kA","at 690 V":"11.9 kA","at 40 °C":"100 A","at 45 °C":"100 A","at 50 °C":"100 A","at 55 °C":"98 A","at 60 °C":"96 A","at 65 °C":"94 A","at 70 °C":"91 A","Depth [in]":"2.8 in","Width [in]":"4 in","Height [in]":"5.1 in","description":"circuit breaker 3VA1 IEC frame 160 breaking capacity class N Icu=25kA @ 415V 4-pole, line protection TM240, ATAM, In=100A overload protection Ir=70A...100A short-circuit protection Ii=5...10 x In N conductor protection 50% 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":"20 000","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"25 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-40 °C","Other Measurement Function":"No","Rated continuous current Iu":"100 A","Rated insulation voltage Ui":"800 V","Ground fault monitoring version":"Without","Design of the overcurrent release":"TM240","Design of short-circuit protection":"For switching power values in DC networks, see the 3VA molded case circuit breaker device manual; link to be found under Service & Support in the last chapter","Protection class IP / on the front":"IP40","Design of the N-conductor protection":"50%","Reference code / acc. to DIN EN 81346-2":"Q","Max. rated operational voltage Ue with DC":"600 V","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"100 A","Adjustable response value current / li max.":"1 000 A","Adjustable response value current / li min.":"500 A","Adjustable response value current / lr min.":"70 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":"N","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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/283c1529e463681efed05dd0c9b42b91.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=530771&mlfb=3VA1110-3FF42-0AA0"},"ai":{"faq":[{"question":"What is the breaking capacity of this MCCB at 415 V?","answer":"At 415 V AC the breaking capacity is 53 kA, which covers most industrial distribution panels behind a typical MV/LV transformer."},{"question":"Will 3VA1110-3FF42-0AA0 fit in a panel designed for 3VA1110-5EE32-0JA0?","answer":"Both are 4-pole 100 A SENTRON MCCBs on the same frame size (101.6 mm width), so the physical footprint is identical — no rewiring needed. The difference is in the release: this one uses a TM240 thermal-magnetic release; the 5EE32 variant uses an electronic release with adjustable settings. Verify the protection curve matches your coordination study before swapping."},{"question":"Where can I buy 3VA1110-3FF42-0AA0 and how is it quoted?","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."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1110-3FF42-0AA0","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/3VA1110-3FF42-0AA0 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}}