{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-4GE46-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-4GE46-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-4GE46-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-4GE46-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-4GE46-0AA0, Molded case circuit breaker, 125 A at 40 °C, 4-pole, TM220 thermal-magnetic release, 121 kA interrupting at 240 V AC, IP40 front, 70 mm depth.","salesMarkdown":"## 125 A MCCB with TM220 release — panel selectivity and interrupting capacity The Siemens SENTRON 3VA1112-4GE46-0AA0 is a 4-pole molded case circuit breaker rated 125 A continuous at 40 °C, with a TM220 thermal-magnetic trip unit. The interrupting capacity hits 121 kA at 240 V AC and 75.6 kA at 415 V AC, giving you headroom for high-fault utility feeds or transformer secondaries where a standard MCCB would cascade. The 4-pole design with 100% N-conductor protection means it switches the neutral, not just monitors it, which matters for TN-S or IT systems where you need full isolation. ## Current derating and thermal budget The 125 A rating holds flat 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. That 4-inch width (101.6 mm) is the standard 4-pole MCCB footprint — it fits Siemens 3VA panelboard cutouts and most DIN-rail adapter plates designed for the SENTRON series.","metaTitle":"Siemens 3VA1112-4GE46-0AA0 SENTRON MCCB, 125 A, 4-Pole, 121","metaDescription":"Siemens SENTRON 3VA1112-4GE46-0AA0 molded case circuit breaker, 125 A at 40 °C, 4-pole, TM220 release, 121 kA at 240 V. Active production. Quoted to order against RFQ.","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":"75.6 kA","at 440 V":"52.5 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":"S","Mechanical Service Life (Switching Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"box terminal on both sides","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal","Type of connectable conductor cross-section, round conductor terminal, stranded":"1 x (1,5 - 70 mm²)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/816651b81ca4bf9f7e4a1edd19d41159.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=178908&mlfb=3VA1112-4GE46-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-4GE46-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What are the interrupting ratings for 3VA1112-4GE46-0AA0 at different voltages?","answer":"At 240 V AC it interrupts 121 kA; at 415 V AC, 75.6 kA; at 440 V AC, 52.5 kA; at 500 V AC, 11.9 kA; and at 690 V AC, 11.9 kA. These are symmetrical RMS values."},{"question":"Where can I buy 3VA1112-4GE46-0AA0?","answer":"This breaker is sourced and quoted to order against an RFQ through independent industrial-automation distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commitment."},{"question":"Will 3VA1112-4GE46-0AA0 drop into a panel specified for 3VA1010-2ED32-0JA0?","answer":"The 3VA1112-4GE46-0AA0 is a higher-current 4-pole MCCB (125 A vs the 3VA1010's lower rating) with a TM220 release. Both share the SENTRON 3VA platform and the same 101.6 mm width, 130 mm height, and 70 mm depth, so the physical cutout and mounting pattern are identical. However, the 125 A frame may require larger cable lugs and the interrupting ratings differ — verify the fault current at the panel location before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-4GE46-0AA0","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/3VA1112-4GE46-0AA0 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}}