{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-6MH32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-6MH32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-6MH32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-6MH32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA molded case circuit breaker, 3VA1112-6MH32-0AA0, 3-pole, 125 A, TM120M thermal-magnetic release, starter protection design, breaking capacity 220 kA at 240 V.","salesMarkdown":"The Siemens SENTRON 3VA1112-6MH32-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated 125 A continuous at 40 °C, designed specifically for starter protection — meaning it's built to coordinate with motor starters and protect the branch circuit feeding a motor load. This breaker delivers 220 kA at 240 V, 154 kA at 415 V, and 75.6 kA at 440 V — numbers that put it in the high-interrupting category for a 125 A frame. At 500 V and 690 V it still holds 7.5 kA, which is useful for industrial systems with higher fault currents upstream. That saves panel space and a fuse holder. ## Thermal derating and temperature range Rated 125 A from 40 °C up to 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. If your panel ambient runs above 50 °C, you lose about 1 A per 5 °C — plan the load accordingly. Operating ambient range is -25 °C to 70 °C; storage range is -40 °C to 80 °C. The storage limit is wider because the breaker isn't carrying current — that's the handling limit, not the running limit. Dimensions: 130 mm high, 76.2 mm wide, 70 mm deep. The 76.2 mm width is a standard 3-inch footprint for a 3-pole MCCB in this class — it fits common panel cutouts and busbar layouts. For a sealed panel, factor that into the thermal calculation.","metaTitle":"Siemens 3VA1112-6MH32-0AA0 SENTRON MCCB, 125A, 3-Pole, 220 k","metaDescription":"Siemens SENTRON 3VA1112-6MH32-0AA0 molded case circuit breaker, 125A rated, 3-pole, TM120M release, 220 kA breaking at 240 V. Active production. Quoted to order against RFQ.","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":"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","Phase Failure Detection":"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":"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=15201&mlfb=3VA1112-6MH32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-6MH32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does this brand provide for 3VA1112-6MH32-0AA0?","answer":"Siemens SENTRON breakers typically carry UL, CSA, IEC, and CE certifications. RoHS and REACH declarations are available from Siemens documentation. Specific certs for this variant should be verified against the unit's label or the manufacturer's declaration portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-6MH32-0AA0","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/3VA1112-6MH32-0AA0 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}}