{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1110-3FD42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1110-3FD42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1110-3FD42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1110-3FD42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1110-3FD42-0AA0, molded case circuit breaker, 4-pole, 100 A rated continuous current, TM210 thermal-magnetic release, line protection version.","salesMarkdown":"The 3VA1110-3FD42-0AA0: This MCCB delivers 76 kA breaking capacity at 240 V, dropping to 53 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V. That spread matters for panel coordination: at 415 V it clears 53 kA faults, which is enough headroom for most industrial secondary distribution boards downstream of a transformer. The 4-pole construction with 50% N-conductor protection means the neutral pole is sized at half the phase rating — standard for balanced loads where the neutral carries only unbalanced current, not full phase current. If the panel feeds single-phase line-to-neutral loads that could pull the neutral up to phase current, that's a detail to check. ## Thermal derating curve — what the numbers mean Above that it derates: 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, and 91 A at 70 °C. The TM210 release is fixed-trip, not adjustable, so the thermal curve is what it is. That 4-inch width is standard for a 4-pole MCCB in the 3VA frame size — it occupies one full 4-inch module on the DIN rail or mounting plate. The 70 mm depth (2.8 in) leaves room for rear-access busbars or cable ladders behind the panel door.","metaTitle":"Siemens 3VA1110-3FD42-0AA0 SENTRON MCCB, 100 A, 4-Pole, TM21","metaDescription":"Siemens 3VA1110-3FD42-0AA0 SENTRON molded case circuit breaker, 100 A rated, 4-pole, TM210 release. Breaking capacity 76 kA at 240 V. Active lifecycle. Sourced to order. Request qu","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":"3VA1110-3FD42-0AA0","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 TM210, FTFM, In=100A overload protection Ir=100A fixed short-circuit protection Ii=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":"TM210","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.":"1 000 A","Adjustable response value current / lr min.":"100 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/324e65dc31a392f8c1e3bab6ae0382f2.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=344122&mlfb=3VA1110-3FD42-0AA0"},"ai":{"faq":[{"question":"Where can I buy 3VA1110-3FD42-0AA0 and 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 — submit an RFQ for a firm price and lead time."},{"question":"What is the closest functional alternative to 3VA1110-3FD42-0AA0?","answer":"The 3VA1110-5EE32-0JA0 is a peer in the same 3VA frame with a different release type. The 3VA1110-3FD42-0AA0 uses a TM210 thermal-magnetic release; the 5EE32 variant uses an electronic release. Both are 4-pole 100 A MCCBs in the same physical footprint, so they swap without rewiring the bus or changing the panel cutout, but the trip curve behavior differs — thermal-magnetic vs. electronic. If the panel design relies on the specific TM210 curve, verify coordination before swapping."},{"question":"What is the depth of 3VA1110-3FD42-0AA0?","answer":"The depth is 70 mm (2.8 inches)."},{"question":"What is the width of 3VA1110-3FD42-0AA0?","answer":"The width is 101.6 mm (4 inches)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1110-3FD42-0AA0","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/3VA1110-3FD42-0AA0 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}}