{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-5MH36-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-5MH36-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-5MH36-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5MH36-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-5MH36-0AA0, molded case circuit breaker, 3-pole, 125 A (40 °C), TM120M thermal-magnetic release, 187 kA at 240 V AC.","salesMarkdown":"## Siemens 3VA1112-5MH36-0AA0 — 125 A SENTRON MCCB for Motor and Starter Protection Rated 125 A continuously at 40 °C, it holds that same rating 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 — so in a warm panel near the upper ambient limit, you lose about 9 % of your headroom. Breaking capacity is voltage-dependent: 187 kA at 240 V AC, 121 kA at 415 V, 75.6 kA at 440 V, and 7.5 kA at both 500 V and 690 V. The 3VA1112-5MH36-0AA0 measures 130 mm high, 76.2 mm wide, and 70 mm deep — a standard 3-pole MCCB footprint that fits most DIN-rail or screw-mounted panel layouts without surprises.","metaTitle":"Siemens 3VA1112-5MH36-0AA0 SENTRON MCCB, 125 A, 3-Pole, TM12","metaDescription":"Siemens 3VA1112-5MH36-0AA0 SENTRON molded case circuit breaker, 125 A rated at 40 °C, 3-pole, TM120M thermal-magnetic release, 187 kA at 240 V. Active production, 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":"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":"7.5 kA","at 690 V":"7.5 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]":"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":"Starter 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","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"TM120M","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","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"I","number of CO contacts / for auxiliary contacts":"0","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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=468669&mlfb=3VA1112-5MH36-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5MH36-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1112-5MH36-0AA0 at 240 V?","answer":"187 kA at 240 V AC, which is very high for this frame size — suitable for applications with large upstream transformers or high available fault current."},{"question":"Where can I buy 3VA1112-5MH36-0AA0 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time."},{"question":"What is the thermal derating curve for 3VA1112-5MH36-0AA0?","answer":"Rated 125 A 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."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-5MH36-0AA0","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/3VA1112-5MH36-0AA0 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}}