{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VM1112-4GE42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VM1112-4GE42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VM1112-4GE42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VM1112-4GE42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VM1112-4GE42-0AA0, 4-pole molded case circuit breaker, 125 A, TM220 release, 121 kA at 240 VAC, 70 mm depth.","salesMarkdown":"The Siemens 3VM1112-4GE42-0AA0 is a 4-pole SENTRON molded case circuit breaker with a TM220 thermal-magnetic release, rated 125 A continuous at 40 °C and delivering 121 kA interrupting capacity at 240 VAC. The interrupting curve drops to 76 kA at 415 V and 53 kA at 440 V, so it still holds its own on 400 V-class distribution. Above that it steps down gradually: 122 A at 55 °C, 120 A at 60 °C, 117 A at 65 °C, and 114 A at 70 °C. If your enclosure sits near a heat source or in a non-conditioned space, that 114 A floor at 70 °C tells you the breaker still carries a solid margin on a 100 A feeder. The LI protection curve (long-time and instantaneous) with adjustable li max to 1,250 A gives you some tuning room for motor inrush or transformer magnetizing current without nuisance tripping. ## Installation notes Rated insulation voltage 690 V.","metaTitle":"Siemens 3VM1112-4GE42-0AA0 SENTRON MCCB, 125 A, 121 kA at 24","metaDescription":"Siemens 3VM1112-4GE42-0AA0 SENTRON molded case circuit breaker, 4-pole, 125 A, 121 kA at 240 VAC. Active production. Quoted 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":"3VM1112-4GE42-0AA0","Height":"130 mm","at 240 V":"121 kA","at 415 V":"76 kA","at 440 V":"53 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]":"2.8 in","Width [In]":"4 in","Height [In]":"5.1 in","description":"circuit breaker 3VM1 IEC frame 160 breaking capacity class S Icu=36kA @ 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","Number Of Poles":"4","Product version":"Line protection","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","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","rated insulation voltage Ui":"690 V","Ground-Fault Monitoring Version":"Without","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","reference code / acc. to IEC 81346-2":"Q","Max. rated operational voltage Ue with DC":"500 V","Product Extension / Optional / Motor Drive":"No","Adjustable response value current / li max.":"1 250 A","Neutral conductors / upgradeable/retrofittable":"No","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"S","Max. rated operational voltage Ue with AC 50/60Hz":"500 V","Mechanical Service Life (Switching Cycles) / Typical":"15 000","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=575414&mlfb=3VM1112-4GE42-0AA0"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VM1112-4GE42-0AA0","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/3VM1112-4GE42-0AA0 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}}