{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VM1112-5MH32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VM1112-5MH32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VM1112-5MH32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VM1112-5MH32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VM1112-5MH32-0AA0, 3-pole molded case circuit breaker, 125 A rated (40-50 °C), 2000 A frame, 187 kA interrupting at 240 V, TM120M thermal-magnetic release.","salesMarkdown":"It's built for distribution and motor branch-circuit protection in industrial panels — the TM120M release gives you a fixed thermal curve and magnetic trip, no adjustment dials, so it's a set-and-forget device for standard feeder or motor loads. Rated 125 A continuously at ambient temperatures from 40 °C up to 50 °C, with a slight derating curve above that: 122 A at 55 °C, 120 A at 60 °C, 117 A at 65 °C, and 114 A at 70 °C. That means in a warm panel you still get nearly full rating — no big step-down until you're past 55 °C. The interrupting ratings are the headline: 187 kA at 240 V AC, 121 kA at 415 V, 76 kA at 440 V, and 17 kA at 500 V. At 415 V the 121 kA still covers most large distribution panels. Maximum frame rating is 2000 A, so this breaker sits in a 2000 A frame but is fitted with a 125 A TM120M trip unit. Dimensions: 130 mm height, 76.2 mm width (3 inches), 70 mm depth. Front IP40 protection keeps out tools and fingers but isn't rated for washdown; install in a sealed enclosure if the environment is wet or dusty. Communication function is absent, so no remote tripping or status monitoring without adding external accessories.","metaTitle":"Siemens SENTRON 3VM1112-5MH32-0AA0 MCCB, 125 A, 2000 A max,","metaDescription":"Siemens SENTRON 3VM1112-5MH32-0AA0 3-pole molded case circuit breaker. 125 A rated (40-50 °C), 2000 A frame, 187 kA at 240 V. TM120M release. 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":"2 000 A","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"76 kA","at 500 V":"17 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":"Startetptotection","Communication Function":"No","Phase Failure Detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"28 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 capacity values in DC power systems, see the 3VA Molded Case Circuit Breaker Manual; link available 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":"I","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"M","Mechanical Service Life (Operating Cycles) / Typical":"15 000","Type Of Electrical Connection / For Main Current Circuit":"nut keeper kit on both ends","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front connection"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/3f0ee706be5ade96bbda51580efca6e9.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=578319&mlfb=3VM1112-5MH32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VM1112-5MH32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting rating of 3VM1112-5MH32-0AA0 at 240 V?","answer":"187 kA at 240 V AC. That's a very high interrupting capacity for a 125 A MCCB — it can handle a direct transformer-fed fault without needing upstream current-limiting fuses."},{"question":"Where can I buy 3VM1112-5MH32-0AA0 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"Will 3VM1112-5MH32-0AA0 drop into a panel specified around 3VA1112-5EE32-0AA0?","answer":"The 3VM1112-5MH32-0AA0 is a 3-pole MCCB with a 76.2 mm width and 130 mm height, while the 3VA1112-5EE32-0AA0 is a different series with its own dimensions. They are not direct drop-in replacements without verifying the panel cutout and bus-bar spacing. The 3VM is a value-line variant with a fixed TM release; the 3VA offers more adjustability. Check the mounting footprint before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VM1112-5MH32-0AA0","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/3VM1112-5MH32-0AA0 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}}