{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VM1220-4ED42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VM1220-4ED42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VM1220-4ED42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VM1220-4ED42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VM1220-4ED42-0AA0, molded case circuit breaker, 4-pole, TM210 release, 200 A at 40 °C, interrupting capacity 121 kA at 240 V, 76 kA at 415 V, 53 kA at 440 V, 17 kA at 500 V.","salesMarkdown":"It carries a 200 A continuous rating at 40 °C and uses a TM210 thermal-magnetic overcurrent release — a fixed-trip unit that combines a thermal bimetal for overloads and a magnetic coil for short-circuits, with no adjustable trip settings. The 4-pole configuration handles three-phase plus neutral, common in North American and European 3-phase 4-wire systems where the neutral must be switched or protected. The interrupting capacity tells you where this breaker can be installed safely: 121 kA at 240 V AC, 76 kA at 415 V AC, 53 kA at 440 V AC, and 17 kA at 500 V AC. That 121 kA at 240 V is high enough for most service-entrance or main-switchboard positions on a 240 V delta or 208Y/120 V system. At 415 V it still holds 76 kA, which covers heavy industrial feeders where fault currents can exceed 50 kA. The 500 V rating drops to 17 kA — still adequate for many 480 V panelboards, but verify the available fault current at the point of installation. ## Thermal derating — the real-world current limit The 200 A rating holds flat from 40 °C through 50 °C ambient. Above that it derates: 194 A at 55 °C, 188 A at 60 °C, 182 A at 65 °C, and 176 A at 70 °C. The maximum operating temperature is 70 °C, and storage range is -40 °C to 80 °C. Dimensions are 70 mm deep, 140 mm wide, 158 mm high. The 140 mm width (5.51 in) is standard for a 4-pole MCCB in this class — it occupies three 18 mm pole spaces plus one neutral pole. ## Key design details That makes it a straightforward choice for fixed-load feeders where coordination studies are done once and don't require field adjustment.","metaTitle":"Siemens 3VM1220-4ED42-0AA0 SENTRON MCCB, 200 A, 4-Pole, 70 m","metaDescription":"Siemens SENTRON 3VM1220-4ED42-0AA0 molded case circuit breaker, 200 A at 40 °C, 4-pole, 121 kA at 240 V. Current 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":"140 mm","title":"3VM1220-4ED42-0AA0","Height":"158 mm","Maximum":"2 000 A","at 240 V":"121 kA","at 415 V":"76 kA","at 440 V":"53 kA","at 500 V":"17 kA","at 40 °C":"200 A","at 45 °C":"200 A","at 50 °C":"200 A","at 55 °C":"194 A","at 60 °C":"188 A","at 65 °C":"182 A","at 70 °C":"176 A","Depth [In]":"2.76 in","Width [In]":"5.51 in","Height [In]":"6.22 in","description":"circuit breaker 3VM1 IEC frame 250 breaking capacity class S Icu=36kA @ 415V 4-pole, line protection TM210, FTFM, In=200A overload protection Ir=200A, not adjustable short-circuit protection Ii=10 x In N conductor unprotected 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":"42 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":"TM210","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":"S","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/bfaa85f9e5b8d6ecb41e182dfa2de460.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=580501&mlfb=3VM1220-4ED42-0AA0"},"ai":{"faq":[{"question":"What is the interrupting capacity of 3VM1220-4ED42-0AA0 at 240 V?","answer":"121 kA at 240 V AC, which is suitable for service-entrance or main-switchboard positions."},{"question":"Where can I buy 3VM1220-4ED42-0AA0 and how is it quoted?","answer":"This part is sourced through independent distribution and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VM1220-4ED42-0AA0","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/3VM1220-4ED42-0AA0 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}}