{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1110-4FE42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1110-4FE42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1110-4FE42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1110-4FE42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1110-4FE42-0AA0, molded case circuit breaker, 4-pole, 100 A, TM220 thermal-magnetic release, line protection version, IP40 front.","salesMarkdown":"This MCCB delivers 121 kA at 240 V AC, 76 kA at 415 V AC, and 53 kA at 440 V AC. ## Thermal derating — don't size by the 100 A label alone At 55 °C it derates to 98 A, at 60 °C to 96 A, at 65 °C to 94 A, and at 70 °C to 91 A. If this breaker lands in a warm enclosure — near transformers, drives, or in a non-climate-controlled electrical room — use the 55 °C or 60 °C column for sizing. The TM220 release compensates thermally, so the trip curve shifts with ambient; the continuous current table is the safe conductor-sizing reference. The 3VA1110-4FE42-0AA0 measures 130 mm high, 101.6 mm wide, and 70 mm deep. The 4-pole footprint is wider than a 3-pole MCCB; verify the DIN-rail space in your enclosure before cutting the backplate.","metaTitle":"Siemens 3VA1110-4FE42-0AA0 SENTRON MCCB, 100 A, 4-Pole, 121","metaDescription":"Siemens SENTRON 3VA1110-4FE42-0AA0 molded case circuit breaker, 100 A, 4-pole, TM220 release. Breaking capacity 121 kA at 240 V AC. Active production, sourced 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","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 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","Number Of Poles":"4","Product version":"Line protection","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","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":"-25 °C","Other Measurement Function":"No","Courant permanent assigné Iu":"100 A","Ground-Fault Monitoring Version":"Without","Tension assignée d'isolement Ui":"800 V","Design Of The Overcurrent Release":"TM220","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 IEC 81346-2":"Q","Max. rated operational voltage Ue with DC":"600 V","Product Extension / Optional / Motor Drive":"Yes","Adjustable response value current / lg min.":"100 A","Adjustable response value current / li max.":"1 000 A","Adjustable response value current / li min.":"1 000 A","Neutral conductors / upgradeable/retrofittable":"No","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"0","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":"690 V","Mechanical Service Life (Switching Cycles) / Typical":"20 000","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"17 x 6.5 mm","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"12 x 0 mm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/eb2c7fa92cb63f498c0e7604be508907.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=147542&mlfb=3VA1110-4FE42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1110-4FE42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this MCCB at 415 V?","answer":"At 415 V AC the interrupting rating is 76 kA, which covers most industrial distribution panels fed by a medium-voltage transformer."},{"question":"What is the closest functional second-source to 3VA1110-4FE42-0AA0?","answer":"The closest parametric peer is 3VA1110-5EE32-0JA0, but it uses an ETU electronic release rather than the TM220 thermal-magnetic release — the trip curve differs, so a coordination study is needed before substituting."},{"question":"Where can I buy 3VA1110-4FE42-0AA0 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent industrial-automation distribution. Availability and current pricing are confirmed at quote time — no stock or price figures are published here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1110-4FE42-0AA0","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/3VA1110-4FE42-0AA0 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}}