{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-6MH32-0AE0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-6MH32-0AE0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-6MH32-0AE0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-6MH32-0AE0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON molded case circuit breaker, 3VA1112-6MH32-0AE0, 3-pole, 125 A at 40 °C, TM120M thermal-magnetic release, starter protection design, 220 kA interrupting rating at 240 V AC.","salesMarkdown":"Rated 125 A continuous at 40 °C with the TM120M thermal-magnetic release, it holds that full rating up to 50 °C before a gentle derate curve kicks in: 122 A at 55 °C, 120 A at 60 °C, 117 A at 65 °C, and 114 A at 70 °C. That thermal stability matters when the breaker is enclosed in a warm panel next to contactors and drives. The SCCR curve on this unit is the real selector: 220 kA at 240 V, 154 kA at 415 V, 75.6 kA at 440 V, and 7.5 kA at both 500 V and 690 V. At 240 V, that 220 kA rating covers virtually any utility-fault scenario in North American panels. ## Starter protection design — built-in auxiliary switch count The starter protection designation means the magnetic trip curve is shaped for motor inrush — it rides through the start transient without nuisance tripping. This variant ships with the supplied basic switch 3VA11126MH320AA0 and carries 4 auxiliary switches HQ as standard. That's four form-C contacts for status feedback to the PLC or safety circuit, which typically saves buying a separate auxiliary block. ## DIN-rail footprint and environmental range Mounts on standard DIN rail. Dimensions: 70 mm depth, 76.2 mm width (3 in), 130 mm height (5.12 in) — the 3-pole width is the critical dimension for panel layout.","metaTitle":"Siemens 3VA1112-6MH32-0AE0 SENTRON MCCB, 125 A, 3-Pole, Star","metaDescription":"Siemens SENTRON 3VA1112-6MH32-0AE0 molded case circuit breaker, 125 A continuous at 40 °C, 3-pole, TM120M release, 220 kA at 240 V. Active production. Sourced 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":"220 kA","at 415 V":"154 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","Of The Supplied Basic Switch":"3VA11126MH320AA0","Design Of The Auxiliary Switch":"4 auxiliary switches HQ","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":"4","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching Capacity Class Of The Circuit Breaker":"H","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"nut keeper kit on both ends","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=148614&mlfb=3VA1112-6MH32-0AE0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-6MH32-0AE0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1112-6MH32-0AE0 and get current pricing?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm number."},{"question":"What is the interrupting rating of 3VA1112-6MH32-0AE0 at 415 V?","answer":"154 kA at 415 V AC. The full SCCR curve is 220 kA at 240 V, 154 kA at 415 V, 75.6 kA at 440 V, and 7.5 kA at both 500 V and 690 V."},{"question":"Will 3VA1112-6MH32-0AE0 drop into a panel specified around 3VA1112-5EE32-0AA0?","answer":"Both are 3-pole SENTRON 3VA frame breakers with the same DIN-rail mounting and 76.2 mm width. The 6MH32-0AE0 carries the TM120M release at 125 A with 4 HQ aux switches, while the 5EE32-0AA0 uses a different release curve and aux count. Mechanically they share the same footprint, so a swap should fit without rewiring the bus bars, but verify the trip curve and aux contact wiring against the panel schematic."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-6MH32-0AE0","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/3VA1112-6MH32-0AE0 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}}