{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-3GE42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-3GE42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-3GE42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-3GE42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-3GE42-0AA0, molded case circuit breaker, 4-pole, 125 A at 40 °C, TM220 thermal-magnetic release, 75.6 kA at 240 V AC, 690 V AC rated, IP40 front.","salesMarkdown":"The Siemens SENTRON 3VA1112-3GE42-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated 125 A at 40 °C, with a TM220 thermal-magnetic release for line protection. Its interrupting capacity reaches 75.6 kA at 240 V AC and 52.5 kA at 415 V AC, making it suited for high-fault panels where selectivity and SCCR headroom matter. The 125 A rating holds flat from 40 °C to 50 °C, then derates to 114 A at 70 °C — useful when the breaker sits in a warm enclosure near other heat sources. The 75.6 kA at 240 V AC and 52.5 kA at 415 V AC tell you the breaker can safely interrupt fault currents up to those levels without upstream coordination failure. The TM220 release is a thermal-magnetic design — thermal element handles overloads, magnetic element handles short-circuits. Power loss is 28.1 W maximum, which matters for enclosure thermal budgeting. At 70 mm deep, 101.6 mm wide, and 130 mm tall, the 3VA1112-3GE42-0AA0 fits standard DIN-rail or panel-mount layouts. The 4-pole design handles three-phase plus neutral (100 % N-conductor protection).","metaTitle":"Siemens 3VA1112-3GE42-0AA0 SENTRON MCCB, 125A, 4-Pole, 75.6k","metaDescription":"Siemens SENTRON 3VA1112-3GE42-0AA0 molded case circuit breaker, 4-pole, 125 A (40 °C), 75.6 kA at 240 V AC, TM220 release. Current lifecycle. 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":"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","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":"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":"100%","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","Type Of Electrical Connection / For Main Current Circuit":"nut keeper kit on both ends","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,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a0d937cb484ce58bfd0fa63af10613f0.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=150227&mlfb=3VA1112-3GE42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-3GE42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1112-3GE42-0AA0 and get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit an RFQ for current pricing and availability confirmation."},{"question":"What is the interrupting capacity of 3VA1112-3GE42-0AA0 at 240 V?","answer":"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 500 V and 690 V AC."},{"question":"Does 3VA1112-3GE42-0AA0 include a ground-fault or undervoltage release?","answer":"No. This variant has no ground-fault monitoring, no undervoltage release, and no voltage trigger. It is a straight thermal-magnetic line-protection breaker."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-3GE42-0AA0","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/3VA1112-3GE42-0AA0 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}}