{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-3ED26-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-3ED26-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-3ED26-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-3ED26-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-3ED26-0AA0, molded case circuit breaker, 2-pole, 125 A, TM210 overcurrent release, line protection.","salesMarkdown":"At 240 V it interrupts 75.6 kA; at 415 V that drops to 52.5 kA, so the available fault current at the panelboard is what decides the fit. The 70 mm depth and 50.8 mm width let it tuck into a standard MCCB slot without stealing extra DIN rail real estate. ## Derating and thermal reality This breaker holds its full 125 A rating from 40 °C up through 50 °C. At 55 °C it derates to 122 A, at 60 °C to 120 A, and at 70 °C to 114 A. That's a clean thermal curve — no surprise drop at 45 °C. Maximum power loss hits 18.74 W, which matters for heat buildup inside a sealed enclosure. The 2-pole form factor and 50.8 mm width mean it fits the same footprint as other SENTRON 2-pole MCCBs; no panel rework needed if swapping from a similar unit. No communication function, no motor drive option, no neutral conductor upgrade. Standard compliance documentation (CE, UL, IEC) is available from the manufacturer for this series.","metaTitle":"Siemens 3VA1112-3ED26-0AA0 SENTRON MCCB, 125 A, 2-Pole","metaDescription":"Siemens 3VA1112-3ED26-0AA0 SENTRON molded case circuit breaker, 125 A rated, 2-pole, TM210 release. 75.6 kA at 240 V. Current production. Quoted on request.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"50.8 mm","Height":"130 mm","at 240 V":"75.6 kA","at 415 V":"52.5 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]":"2 in","Height [In]":"5.12 in","Number Of Poles":"2","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":"18.74 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","rated insulation voltage Ui":"500 V","Courant permanent assigné Iu":"125 A","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","Max. rated operational voltage Ue with DC":"250 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"No","Adjustable response value current / li max.":"1 250 A","Adjustable response value current / li min.":"1 250 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":"N","Max. rated operational current of the frame size":"160 A","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/230ca8498dbc749cde608a253ecd8c62.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=487631&mlfb=3VA1112-3ED26-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-3ED26-0AA0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1112-3ED26-0AA0?","answer":"Pricing and availability are confirmed at quote time. Submit an RFQ through this listing and we'll source it through our independent distribution channel and respond with current numbers."},{"question":"What is 3VA1112-3ED26-0AA0's listed depth?","answer":"The listed depth is 70 mm (2.76 in)."},{"question":"What is 3VA1112-3ED26-0AA0's listed width?","answer":"The listed width is 50.8 mm (2 in)."},{"question":"What compliance documentation does this brand provide for 3VA1112-3ED26-0AA0?","answer":"Standard compliance documentation including CE, UL, and IEC declarations is available from Siemens for the SENTRON 3VA series. The rated insulation voltage is 500 V per IEC 81346-2."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-3ED26-0AA0","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/3VA1112-3ED26-0AA0 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}}