{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-3FD42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-3FD42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-3FD42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-3FD42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-3FD42-0AA0, molded case circuit breaker, 4-pole, TM210 thermal-magnetic release, 125 A at 40 °C, breaking capacity 75.6 kA at 240 V AC, 52.5 kA at 415 V AC, 32 kA at 440 V AC, 11.9 kA at 500/690 V AC.","salesMarkdown":"## 125 A MCCB with TM210 release — selectivity and SCCR headroom The 4-pole design handles three-phase plus neutral protection, and the 50% N-conductor protection setting means the neutral pole trips at half the phase rating — standard for distribution panels where the neutral carries only unbalanced load. Breaking capacity is the headline selector here: 75.6 kA at 240 V AC, 52.5 kA at 415 V AC, 32 kA at 440 V AC, and 11.9 kA at both 500 V and 690 V AC. For a site electrical engineer building a selective coordination study, the 415 V figure is the one that governs most European industrial panels — 52.5 kA SCCR gives headroom above typical 25–36 kA fault levels at the main distribution board. The IP40 front protection means it's enclosed in a panel — not for washdown environments, but standard for switchgear cubicles. The continuous current holds flat at 125 A from 40 °C through 50 °C, then derates to 122 A at 55 °C, 120 A at 60 °C, 117 A at 65 °C, and 114 A at 70 °C.","metaTitle":"Siemens 3VA1112-3FD42-0AA0 SENTRON MCCB, 125A, 4-Pole, TM210","metaDescription":"Siemens 3VA1112-3FD42-0AA0 SENTRON MCCB, 125 A at 40 °C, 4-pole, TM210 release, 75.6 kA at 240 V. Active production. 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":"3VA1112-3FD42-0AA0","Height":"130 mm","at 240 V":"75.6 kA","at 415 V":"52.5 kA","at 440 V":"32 kA","at 500 V":"11.9 kA","at 690 V":"11.9 kA","at 40 °C":"125 A","at 45 °C":"125 A","at 50 °C":"125 A","at 55 °C":"122 A","at 60 °C":"120 A","at 65 °C":"117 A","at 70 °C":"114 A","Depth [In]":"2.76 in","Width [In]":"4 in","Height [In]":"5.12 in","description":"circuit breaker 3VA1 IEC frame 160 breaking capacity class N Icu=25kA @ 415V 4-pole, line protection TM210, FTFM, In=125A overload protection Ir=125A fixed short-circuit protection Ii=10 x In N conductor protection 50% nut keeper kit","Trip Indicator":"No","Number Of Poles":"4","Product version":"Line protection","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"28.1 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","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%","operating voltage / at AC / rated value":"690 V","Max. rated operational voltage Ue with DC":"600 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","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":"N","Mechanical Service Life (Switching Cycles) / Typical":"20 000","reference value setting current (Ii) / for I-tripping":"x In","Type Of Electrical Connection / For Main Current Circuit":"nut keeper kit on both ends","type of value list setting current (Ii) / for I-tripping":"Fest","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 1 mm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/bb82d2646359e20e20f69d7a58fd873e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=226230&mlfb=3VA1112-3FD42-0AA0"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1112-3FD42-0AA0 at 415 V?","answer":"52.5 kA at 415 V AC, which is the typical reference for European industrial panel coordination studies."},{"question":"Will 3VA1112-3FD42-0AA0 drop into a panel specified around 3VA1112-5EE32-0AA0 without rewiring?","answer":"Both are 4-pole SENTRON MCCBs in the same 3VA1112 frame size, so the mounting footprint and bus-bar spacing are identical. The difference is the release: the -3FD42-0AA0 uses a TM210 thermal-magnetic release, while the -5EE32-0AA0 uses an electronic release. Panel cutout and terminal layout are the same, so no rewiring is needed for the mechanical fit — but the protection curve changes, so verify coordination with the downstream devices."},{"question":"Where can I buy 3VA1112-3FD42-0AA0 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."},{"question":"What compliance documentation does Siemens provide for this MCCB?","answer":"The SENTRON 3VA series carries IEC 60947-2 certification as the base standard. RoHS and REACH declarations are available from Siemens documentation. Specific UL/CSA listings depend on the exact variant; verify against the nameplate marking on the unit received."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-3FD42-0AA0","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/3VA1112-3FD42-0AA0 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}}