{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VM1120-4EE36-0AA2","brand":"Siemens","brandSlug":"siemens","productSlug":"3VM1120-4EE36-0AA2","canonicalUrl":"https://aoctrl.com/siemens/3VM1120-4EE36-0AA2","factsUrl":"https://aoctrl.com/api/mcp/products/3VM1120-4EE36-0AA2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VM1120-4EE36-0AA2, molded case circuit breaker, 3-pole, 20 A, TM220 line protection, breaking capacity class S, 121 kA at 240 V, 76 kA at 415 V.","salesMarkdown":"It's a 3-pole unit rated 20 A continuous at 40 °C, with an adjustable overload protection Ir from 14 A to 20 A and a fixed short-circuit protection Ii of 16 × In (320 A). The frame is sized for up to 160 A, so this 20 A breaker sits in a physically larger housing that handles the high interrupting ratings. The headline here is the interrupting capacity: 121 kA at 240 V AC, 76 kA at 415 V AC, 53 kA at 440 V AC, and still 11.9 kA at 500 V AC. The 76 kA at 415 V is the rating most often cited for European 400 V networks; the 121 kA at 240 V covers North American 240/120 V split-phase or 240 V delta services. It's a straightforward line-protection breaker: feed it, protect the cable, move on. This is a front-connected breaker with box terminals for the main circuit — standard for panelboard or switchboard mounting. No auxiliary contacts come with this unit (0 CO contacts), and the neutral conductor is not upgradeable or retrofittable. If you need alarm or trip-indication signals, you'll need an external auxiliary switch block — verify compatibility with the 3VM frame. If you're comparing against the 3VA1020-3ED36-0AA0 (the 3VA series successor), note that the 3VM is the IEC-focused value line — same frame sizes, similar breaking capacities, but the 3VA adds more accessory options and a wider adjustment range. The 3VM1120-4EE36-0AA2 will physically fit a panel designed for the 3VA1020-3ED36-0AA0 (same 3-pole footprint, same box-terminal layout), but the release characteristics differ: the 3VM uses the TM220 with fixed Ii = 16 × In, while the 3VA's release may have a different adjustment band. Check your coordination study before swapping.","metaTitle":"Siemens 3VM1120-4EE36-0AA2 SENTRON MCCB, 20 A, 121 kA at 240","metaDescription":"Siemens SENTRON 3VM1120-4EE36-0AA2 molded case circuit breaker, 3-pole, 20 A, TM220 release, 121 kA at 240 V. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"title":"3VM1120-4EE36-0AA2","at 240 V":"121 kA","at 415 V":"76 kA","at 440 V":"53 kA","at 500 V":"11.9 kA","at 40 °C":"20 A","at 45 °C":"20 A","at 50 °C":"20 A","at 55 °C":"20 A","at 60 °C":"19 A","at 65 °C":"19 A","at 70 °C":"19 A","description":"circuit breaker 3VM1 IEC frame 160 breaking capacity class S Icu=36kA @ 415V 3-pole, line protection TM220, ATFM, In=20A overload protection Ir=14A...20A short-circuit protection Ii=16 x In terminal connection","Number of poles":"3","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":"12 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"20 A","Rated insulation voltage Ui":"690 V","Ground fault monitoring version":"Without","Design of the overcurrent release":"TM220","Protection class IP / on the front":"IP40","Reference code / acc. to DIN EN 81346-2":"Q","Max. rated operational voltage Ue with DC":"500 V","Product extension / optional / motor drive":"No","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"0","Protective function of the overcurrent release":"LI","Switching capacity class of the circuit breaker":"S","Max. rated operational current of the frame size":"160 A","Max. rated operational voltage Ue with AC 50/60Hz":"500 V","Type of electrical connection / for main current circuit":"box terminal","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/890a9c4e8f724baae13c5de28442f149.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=682795&mlfb=3VM1120-4EE36-0AA2"},"ai":{"faq":[{"question":"Will 3VM1120-4EE36-0AA2 drop into a panel specified around 3VA1020-3ED36-0AA0?","answer":"Physically yes — same 3-pole footprint and box-terminal layout. But the 3VM uses a TM220 release with fixed short-circuit protection at 16 × In, while the 3VA release may differ. Verify your coordination study before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VM1120-4EE36-0AA2","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/3VM1120-4EE36-0AA2 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}}