{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-6MH36-0BC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-6MH36-0BC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-6MH36-0BC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-6MH36-0BC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-6MH36-0BC0, molded case circuit breaker, 3-pole, 125 A rated current, breaking capacity 220 kA at 240 V AC, with undervoltage release and 2 auxiliary switches.","salesMarkdown":"The Siemens SENTRON 3VA1112-6MH36-0BC0 is a 3-pole molded case circuit breaker (MCCB) rated for 125 A continuous current at 40 °C ambient, with a breaking capacity of 220 kA at 240 V AC and 154 kA at 415 V AC. It is designed specifically for starter protection — meaning it's built to handle the high inrush and short-circuit stresses of motor-starting applications, not just general distribution. The 125 A rating holds flat from 40 °C to 50 °C, then derates gradually: 122 A at 55 °C, 120 A at 60 °C, 117 A at 65 °C, and 114 A at 70 °C. The 800 V rated insulation voltage (Ui) means it's safe for 690 V line-to-line systems, and the 7.5 kA breaking capacity at 690 V confirms it can clear a fault on a 690 V motor circuit, though at a much lower level than the 240 V or 415 V ratings. Power dissipation is 30.6 W maximum — not negligible in a sealed panel. This MCCB mounts on a DIN rail (standard 35 mm profile) or can be screw-fixed to a backplate. Dimensions are 130 mm height, 76.2 mm width, and 70 mm depth — a 3-pole footprint that fits most panel layouts without surprises. The 3-pole design handles three-phase motor loads, and the integrated auxiliary switches (2 HQ contacts) give you a spare NO/NC pair for PLC feedback or alarm annunciation without adding a side-mount block.","metaTitle":"Siemens 3VA1112-6MH36-0BC0 SENTRON MCCB, 125A, 3-Pole, 220kA","metaDescription":"Siemens SENTRON 3VA1112-6MH36-0BC0 molded case circuit breaker, 125A, 3-pole, breaking capacity 220kA at 240V AC. Current production, sourced to order. RFQ for pricing.","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":"Yes","Design Of The Product":"Starter protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"30.6 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA11126MH360AA0","Design Of The Auxiliary Switch":"2 auxiliary switches HQ","Design Of The Auxiliary Release":"undervoltage release (UVR)","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","Of The Integrated Auxiliary Trip Unit":"3VA9608-0BB11","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":"2","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":"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=483291&mlfb=3VA1112-6MH36-0BC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-6MH36-0BC0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this MCCB at 240 V?","answer":"The breaking capacity at 240 V AC is 220 kA, which is suitable for high-fault-current installations like large industrial switchboards."},{"question":"Does this breaker include an undervoltage release?","answer":"Yes, it comes with an integrated undervoltage release (UVR) as part of the design, allowing it to trip when supply voltage drops below a set threshold."},{"question":"Where can I buy 3VA1112-6MH36-0BC0 and how is it quoted?","answer":"It is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at the time of quotation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-6MH36-0BC0","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/3VA1112-6MH36-0BC0 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}}