{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VM1112-3GE42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VM1112-3GE42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VM1112-3GE42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VM1112-3GE42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"SENTRON 3VM1112-3GE42-0AA0, 4-pole molded case circuit breaker, 125 A rated current at 40 °C, 53 kA breaking capacity at 415 V, TM220 thermal-magnetic release, line protection design.","salesMarkdown":"Its TM220 thermal-magnetic release provides fixed overload and short-circuit protection curves — no interchangeable trip units, so the trip setting is locked at the factory. Rated 125 A continuous at 40 °C, it holds that current flat through 50 °C (125 A at 50 °C), then derates linearly to 114 A at 70 °C. That thermal stability means you don't lose headroom in a warm enclosure until you're well above typical panel ambient. Breaking capacity is the real selector here: 76 kA at 240 V AC, 53 kA at 415 V AC, 32 kA at 440 V AC, and 12 kA at 500 V AC. At 415 V — common for European industrial distribution — the 53 kA figure puts it in the high-fault tier for a 125 A frame. Maximum power loss is 23 W — that's the heat it dumps into the enclosure at full rated current. For a panel designer, that's the number to plug into the thermal rise calculation. If you're retrofitting this into an existing panel that ran cooler, verify the enclosure's dissipation capacity doesn't exceed the rated rise. Dimensions: 70 mm deep, 101.6 mm wide (4 inches), 130 mm high (5.12 inches). The 4-pole width at 101.6 mm is the standard 4-inch MCCB footprint for this class — it fits Siemens SENTRON mounting bases and most DIN-rail adapters for 4-pole frames. The N-conductor protection is rated at 100% — meaning the neutral pole is fully rated, not reduced. That matters for 4-wire systems where the neutral carries phase imbalance current. No ground-fault monitoring version is fitted, so this is a straight overcurrent-only device.","metaTitle":"SENTRON 3VM1112-3GE42-0AA0 MCCB, 4-Pole, 125 A, 53 kA at 415","metaDescription":"SENTRON 3VM1112-3GE42-0AA0 molded case circuit breaker, 4-pole, 125 A rated current, 53 kA breaking capacity at 415 V. TM220 release, line protection. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"101.6 mm","title":"3VM1112-3GE42-0AA0","Height":"130 mm","Maximum":"1 250 A","Minimum":"1 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 protection 100% nut keeper kit","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":"100%","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":"nut keeper kit on both ends","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=575408&mlfb=3VM1112-3GE42-0AA0"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VM1112-3GE42-0AA0","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/3VM1112-3GE42-0AA0 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}}