{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VM1120-5EE32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VM1120-5EE32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VM1120-5EE32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VM1120-5EE32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VM1120-5EE32-0AA0, 3-pole molded case circuit breaker, 20 A (40 °C), TM220 thermal-magnetic release, 187 kA at 240 V, 70 mm depth, IP40 front.","salesMarkdown":"It carries a TM220 thermal-magnetic release — the first digit (2) indicates the thermal trip adjustment range, the second (20) the magnetic pickup multiplier. Rated 20 A continuously at 40 °C, it derates to 19 A at 60 °C and above, so in a warm enclosure you lose about 5 % headroom. ## Breaking capacity by voltage — the real coordination number This MCCB delivers 187 kA at 240 V, 121 kA at 415 V, 76 kA at 440 V, and 17 kA at 500 V. The steep drop above 440 V means the 500 V figure governs any 480 V or 500 V installation — 17 kA is still adequate for most low-fault industrial panels, but verify your available fault current at the point of installation. The 415 V rating (121 kA) covers the common European 400 V three-phase grid with substantial margin. Maximum power loss is 12 W, which matters for thermal management in a densely packed enclosure.","metaTitle":"Siemens SENTRON 3VM1120-5EE32-0AA0 MCCB, 3-Pole, 20 A, TM220","metaDescription":"Siemens SENTRON 3VM1120-5EE32-0AA0 molded case circuit breaker, 3-pole, 20 A rated at 40 °C, TM220 release, 187 kA breaking at 240 V. Current lifecycle stage. Sourced to order agai","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":"3VM1120-5EE32-0AA0","Height":"130 mm","Maximum":"320 A","Minimum":"1 s","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"76 kA","at 500 V":"17 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 M Icu=55kA @ 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","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":"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","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":"M","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/890a9c4e8f724baae13c5de28442f149.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=575453&mlfb=3VM1120-5EE32-0AA0"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VM1120-5EE32-0AA0","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/3VM1120-5EE32-0AA0 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}}