{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-5EF36-0AF0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-5EF36-0AF0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-5EF36-0AF0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5EF36-0AF0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-5EF36-0AF0, molded case circuit breaker, 3-pole, 125 A at 40 °C, TM240 thermal-magnetic release, 187 kA breaking capacity at 240 V.","salesMarkdown":"Breaking capacity reaches 187 kA at 240 V, 121 kA at 415 V, and 75.6 kA at 440 V, which covers most industrial secondary-distribution fault levels without cascading upstream. ## Thermal derating and continuous current The 125 A rating holds flat from 40 °C up to 50 °C, then gradually declines: 122 A at 55 °C, 120 A at 60 °C, 117 A at 65 °C, and 114 A at 70 °C. This MCCB's interrupting rating varies significantly with system voltage. At 415 V the rating is 121 kA, at 440 V it is 75.6 kA, and at 500 V or 690 V it drops to 17 kA. ## Physical fit and auxiliary switching Dimensions are 130 mm high, 76.2 mm wide, and 70 mm deep — a standard 3-pole MCCB footprint that fits Siemens SENTRON mounting bases and panel cutouts. No undervoltage release, no ground-fault module, and no communication function are included on this variant — those are separate add-on accessories.","metaTitle":"Siemens 3VA1112-5EF36-0AF0 SENTRON MCCB, 125A, 3-Pole, TM240","metaDescription":"Siemens SENTRON 3VA1112-5EF36-0AF0 molded case circuit breaker, 125A at 40°C, 3-pole, TM240 release, 187 kA at 240 V. Active production, available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"76.2 mm","Height":"130 mm","Maximum":"0 A","Minimum":"0 A","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"75.6 kA","at 500 V":"17 kA","at 690 V":"17 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]":"3 in","Height [In]":"5.12 in","Trip Indicator":"Yes","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Line protection","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","Of The Supplied Basic Switch":"3VA11125EF360AA0","Design Of The Auxiliary Switch":"1 auxiliary switch + 1 trip alarm switch HQ","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"TM240","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","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"500 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching Capacity Class Of The Circuit Breaker":"M","Mechanical Service Life (Operating 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"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/081ee5e1727593db24dcd63eea6d027b.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=112516&mlfb=3VA1112-5EF36-0AF0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5EF36-0AF0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1112-5EF36-0AF0 and what is the lead time?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or lead-time figure is published here."},{"question":"What is the breaking capacity of 3VA1112-5EF36-0AF0 at 415 V?","answer":"At 415 V the interrupting rating is 121 kA. At 240 V it is 187 kA, at 440 V it is 75.6 kA, and at 500 V or 690 V it is 17 kA."},{"question":"What does the TM240 release designation mean?","answer":"TM240 indicates a thermal-magnetic release with a 240 A frame rating. The thermal element provides inverse-time overload protection; the magnetic element provides instantaneous short-circuit protection. The breaker's continuous current rating (125 A at 40 °C) is set by the installed trip unit, not the frame size."},{"question":"Will 3VA1112-5EF36-0AF0 drop into a panel specified for 3VA1110-5ED36-0AC0?","answer":"Both are 3-pole SENTRON 3VA1 frame breakers with the same physical dimensions (130 mm height, 76.2 mm width, 70 mm depth), so they share the same mounting footprint and bus-bar spacing. The key difference is the release: this unit uses a TM240 release rated 125 A, while the 3VA1110-5ED36-0AC0 uses a different release and current rating. No rewiring of the panel cutout or bus connections is needed, but the protection settings differ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-5EF36-0AF0","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/3VA1112-5EF36-0AF0 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}}