{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-3EF36-0AC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-3EF36-0AC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-3EF36-0AC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-3EF36-0AC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-3EF36-0AC0, molded case circuit breaker, line protection, 3-pole, TM240 overcurrent release, 125 A at 40 °C, 75.6 kA breaking capacity at 240 V.","salesMarkdown":"It carries a TM240 thermal-magnetic overcurrent release, rated 125 A continuously at 40 °C ambient, with no derating needed up to 50 °C — the same 125 A holds at 45 °C and 50 °C, then steps down to 122 A at 55 °C and 114 A at 70 °C. That thermal curve means it can serve a full 125 A load in a well-ventilated enclosure without oversizing the frame. Breaking capacity is 75.6 kA at 240 V, 52.5 kA at 415 V, and 32 kA at 440 V — sufficient for high-fault utility feeds or transformer secondaries in most industrial installations. These dimensions match the standard SENTRON 3VA molded case footprint — it drops into the same panel cutout and bus-bar spacing as other 3VA1 frame breakers. Maximum power dissipation is 28.1 W at rated load — a figure to include in thermal calculations for sealed or high-density enclosures.","metaTitle":"Siemens 3VA1112-3EF36-0AC0 SENTRON MCCB, 125A, 3-Pole, TM240","metaDescription":"Siemens 3VA1112-3EF36-0AC0 SENTRON molded case circuit breaker, 125A at 40°C, 3-pole, TM240 release, 75.6 kA at 240 V. Active production. Quoted on request.","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":"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]":"3 in","Height [In]":"5.12 in","Trip Indicator":"No","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":"3VA11123EF360AA0","Design Of The Auxiliary Switch":"2 auxiliary switches 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":"3VA9988-0AA12","Switching Capacity Class Of The Circuit Breaker":"N","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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=134288&mlfb=3VA1112-3EF36-0AC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-3EF36-0AC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1112-3EF36-0AC0 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent industrial distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm quote."},{"question":"What is the breaking capacity of this MCCB at 240 V?","answer":"75.6 kA at 240 V, with 52.5 kA at 415 V and 32 kA at 440 V."},{"question":"What is the continuous current rating at 40 °C?","answer":"125 A at 40 °C, 45 °C, and 50 °C; derates to 122 A at 55 °C and 114 A at 70 °C."},{"question":"Does this breaker include auxiliary switches?","answer":"Yes, it comes with two built-in auxiliary switches (HQ type) for status indication."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-3EF36-0AC0","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/3VA1112-3EF36-0AC0 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}}