{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1110-5FE42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1110-5FE42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1110-5FE42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1110-5FE42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1110-5FE42-0AA0, molded case circuit breaker, line protection, 4-pole, 100 A (40 °C), TM220 release, 187 kA at 240 V AC, IP40 front.","salesMarkdown":"## What this 4-pole 100 A MCCB covers Its TM220 thermal-magnetic release provides fixed thermal pickup and magnetic short-circuit response — no field-adjustable trip unit, which simplifies ordering but means the breaker is matched to a specific load profile at the factory. ## Interrupting capacity and thermal derating — the numbers that decide fit The interrupting ratings drop as system voltage rises: 76 kA at 440 V, 17 kA at 500 V, and 17 kA at 690 V. That steep roll-off above 440 V means this breaker is sized for 400 V class systems (up to 440 V) where the 121 kA or 76 kA rating gives real fault-clearing headroom. Thermal derating is mild through 50 °C (still 100 A), then drops to 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, and 91 A at 70 °C. The 101.6 mm width (4 inches) is standard for a 4-pole MCCB in this frame size — it occupies four 25.4 mm pole positions on the DIN rail or mounting plate. Front protection is IP40, so it's splash-resistant from the front but not sealed against hose-down; keep it inside a panel with a door. The 50 % N-conductor protection design means the neutral pole is rated at half the phase current (50 A in this case), which matches typical 3-phase + neutral feeder applications where the neutral carries only unbalanced load — not a full-capacity neutral for harmonic-rich loads like VFDs with significant triplen currents.","metaTitle":"Siemens 3VA1110-5FE42-0AA0 SENTRON MCCB, 100 A, 4-Pole, 187","metaDescription":"Siemens 3VA1110-5FE42-0AA0 SENTRON molded case circuit breaker, 100 A continuous, 4-pole, 187 kA interrupting at 240 V. TM220 release, IP40 front. Sourced to order; confirm current","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":"187 kA","at 415 V":"121 kA","at 440 V":"76 kA","at 500 V":"17 kA","at 690 V":"17 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 / 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":"M","Max. rated operational current of the frame size":"160 A","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/63f93ba3fa84f3344777ee9a42207fc4.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=304536&mlfb=3VA1110-5FE42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1110-5FE42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1110-5FE42-0AA0?","answer":"Submit an RFQ through this listing. Pricing and stock levels are confirmed at quote time — no published price or live inventory count is available on the page, but the part is actively sourced through independent distribution channels."},{"question":"Will 3VA1110-5FE42-0AA0 drop into a panel specified around 3VA1110-5EF36-0AD0 without rewiring?","answer":"The physical dimensions (130 x 101.6 x 70 mm) are identical across the 3VA frame, so the footprint and mounting pattern match. However, the 5FE42-0AA0 uses a TM220 thermal-magnetic release, while the 5EF36-0AD0 uses an electronic release — the trip curves differ, and the interrupting ratings may not be the same. Verify coordination before swapping; the breaker will physically fit, but the protection settings need a design review."},{"question":"What is the interrupting capacity of this breaker at 415 V?","answer":"At 415 V AC, the interrupting rating is 121 kA. That covers most 400 V class industrial feeds with ample headroom for high-fault-current transformer secondaries."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1110-5FE42-0AA0","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/3VA1110-5FE42-0AA0 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}}