{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VM1120-4EE32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VM1120-4EE32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VM1120-4EE32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VM1120-4EE32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VM1120-4EE32-0AA0, 3-pole molded case circuit breaker, 20 A, TM220 thermal-magnetic release, 121 kA at 240 VAC, line protection.","salesMarkdown":"## Siemens SENTRON 3VM1120-4EE32-0AA0 — 20 A MCCB, TM220 Release It holds 20 A continuously from 40 °C up through 55 °C, then derates to 19 A at 60 °C and above — so in a warm panel you keep full rating unless ambient pushes past 55 °C. Breaking capacity steps with system voltage: 121 kA at 240 VAC, 76 kA at 415 VAC, 53 kA at 440 VAC, and 12 kA at 500 VAC. That 121 kA at 240 V gives headroom for high-fault panels downstream of a large transformer; the 12 kA at 500 V still clears most industrial service-entrance faults. Rated operational voltage is 690 VAC maximum; DC rated voltage is 500 V. Insulation voltage is 800 V. ## Sourcing & Lifecycle — Active, Quoted to Order Power loss is 12 W maximum at rated load. Dimensions are 70 mm depth, 76.2 mm width, 130 mm height — a standard SENTRON 3VM footprint that fits existing panel cutouts and busbar arrangements. ## Integration — Panel Fit and Coordination The 70 mm depth keeps the breaker within standard 200 mm deep enclosures without interfering with wiring ducts.","metaTitle":"Siemens 3VM1120-4EE32-0AA0 SENTRON MCCB, 20 A, 3-Pole, 121 k","metaDescription":"Siemens SENTRON 3VM1120-4EE32-0AA0 molded case circuit breaker, 20 A, 3-pole, TM220 release, 121 kA at 240 VAC. Active production. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"76.2 mm","title":"3VM1120-4EE32-0AA0","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":"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","Depth [In]":"2.76 in","Width [In]":"3 in","Height [In]":"5.12 in","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 nut keeper kit","Trip Indicator":"No","Number Of Poles":"3","Product version":"Line protection","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","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","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","operating voltage / at AC / rated value":"690 V","Max. rated operational voltage Ue with DC":"500 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"No","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","Type Of Electrical Connection / For Main Current Circuit":"nut keeper kit on both ends","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front connection","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"17 x 6.5 mm","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"12 x 1 mm"}},"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=575447&mlfb=3VM1120-4EE32-0AA0"},"ai":{"faq":[{"question":"Where can I buy 3VM1120-4EE32-0AA0 and what is the lead time?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or lead-time number is published here."},{"question":"What is the closest functional peer to 3VM1120-4EE32-0AA0?","answer":"The 3VA1020-3ED36-0AA0 is a similar SENTRON 3VA-series MCCB with a different release curve and higher breaking capacity in some voltage ranges, but it shares the same 3-pole 20 A class and panel footprint. The 3VM1120-4EE32-0AA0 uses a TM220 release; the 3VA1020-3ED36-0AA0 uses a different electronic or thermal-magnetic variant — verify the release type matches your coordination study before substituting."},{"question":"Will 3VM1120-4EE32-0AA0 drop into a panel specified around 3VA1020-3ED36-0AA0 without rewiring?","answer":"Both are 3-pole SENTRON MCCBs in the same physical frame class (70 mm depth, 76.2 mm width), so mechanical fit and busbar connection should match. However, the release type differs — TM220 on the 3VM1120 versus whatever release the 3VA1020-3ED36-0AA0 carries — so verify the trip curve and selectivity settings before swapping."},{"question":"What compliance documentation does this brand provide for 3VM1120-4EE32-0AA0?","answer":"As a Siemens SENTRON MCCB, it carries CE marking for the European market and is designed to IEC 60947-2. UL/CSA listings are typical for this series but should be confirmed against the specific catalog number for your jurisdiction."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VM1120-4EE32-0AA0","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/3VM1120-4EE32-0AA0 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}}