{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VM1112-3EE46-0AA2","brand":"Siemens","brandSlug":"siemens","productSlug":"3VM1112-3EE46-0AA2","canonicalUrl":"https://aoctrl.com/siemens/3VM1112-3EE46-0AA2","factsUrl":"https://aoctrl.com/api/mcp/products/3VM1112-3EE46-0AA2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VM1112-3EE46-0AA2, 4-pole molded case circuit breaker, 125 A, TM220 release, line protection, interrupting 76 kA at 240 V.","salesMarkdown":"It carries a TM220 thermal-magnetic overcurrent release — that's a fixed thermal trip with an adjustable magnetic pickup, so you set the short-circuit threshold to coordinate with downstream devices without swapping the breaker body. Interrupting capacity hits 76 kA at 240 V AC, 53 kA at 415 V, 32 kA at 440 V, and 12 kA at 500 V, giving you selectivity headroom across common industrial voltages. ## Thermal derating and real-world ampacity Above that, the breaker derates linearly: 122 A at 55 °C, 120 A at 60 °C, 117 A at 65 °C, and 114 A at 70 °C. It's a standard panel-mount footprint — no DIN-rail clip on this frame, so you bolt it directly to the mounting plate or into a distribution block. The IP40 front protection means it's splash-safe in the panel but not rated for washdown; keep it behind a sealed enclosure door in wet environments.","metaTitle":"Siemens SENTRON 3VM1112-3EE46-0AA2 MCCB, 4-Pole, 125 A, 76 k","metaDescription":"Siemens SENTRON 3VM1112-3EE46-0AA2 molded case circuit breaker, 4-pole, 125 A rated, 76 kA interrupting at 240 V. TM220 release, line protection. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"101.6 mm","title":"3VM1112-3EE46-0AA2","Height":"130 mm","Maximum":"1 250 A","Minimum":"88 A","at 240 V":"76 kA","at 415 V":"53 kA","at 440 V":"32 kA","at 500 V":"12 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]":"4 in","Height [In]":"5.12 in","description":"circuit breaker 3VM1 IEC frame 160 breaking capacity class N Icu=25kA @ 415V 4-pole, line protection TM220, ATFM, In=125A overload protection Ir=88A...125A short-circuit protection Ii=10 x In N conductor unprotected terminal connection","Trip Indicator":"No","Number Of Poles":"4","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"23 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":"TM220","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","design of the N-conductor protection":"Without","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":"No","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"N","Mechanical Service Life (Operating Cycles) / Typical":"15 000","Type Of Electrical Connection / For Main Current Circuit":"box terminal on both sides","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front connection"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"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=682776&mlfb=3VM1112-3EE46-0AA2"},"ai":{"faq":[{"question":"Where can I buy 3VM1112-3EE46-0AA2 and get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a request for quote to confirm current pricing and delivery."},{"question":"What are the interrupting ratings at different voltages?","answer":"76 kA at 240 V AC, 53 kA at 415 V, 32 kA at 440 V, and 12 kA at 500 V — these cover most industrial distribution voltages for fault coordination."},{"question":"What is the depth of 3VM1112-3EE46-0AA2?","answer":"The listed depth is 70 mm (2.76 in), which fits standard panel-mount depths for this frame class."},{"question":"Does this breaker have a communication function or undervoltage release?","answer":"No — this unit has no communication function and no undervoltage release. It's a straight thermal-magnetic breaker for line protection without auxiliary electronics."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VM1112-3EE46-0AA2","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/3VM1112-3EE46-0AA2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}