{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1020-2ED36-0DA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1020-2ED36-0DA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1020-2ED36-0DA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1020-2ED36-0DA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA series molded case circuit breaker, 3VA1020-2ED36-0DA0, 3-pole, 20 A rated at 40 °C, TM210 thermal-magnetic release, with undervoltage release, 52.5 kA breaking capacity at 240 V AC.","salesMarkdown":"Rated 20 A at 40 °C ambient, and it holds that rating through 55 °C. At 60 °C it derates to 19 A, and at 70 °C it is still 19 A — so in a warm panel (say 50 °C) you get the full 20 A without having to oversize the breaker. ## Breaking capacity across voltages Breaking capacity is 52.5 kA at 240 V AC, 32 kA at 415 V, 13.6 kA at 440 V, and 7.5 kA at both 500 V and 690 V. This is a high-interrupting-capacity (HIC) variant for the 20 A frame — it can handle fault currents that would weld a standard 10 kA MCCB on a 240 V secondary. At 690 V the 7.5 kA rating is still adequate for most industrial motor branch circuits, but verify against your transformer's impedance and available fault current. Dimensions are 76.2 mm wide (3 in), 130 mm tall (5.12 in), and 70 mm deep (2.76 in).","metaTitle":"Siemens SENTRON 3VA1020-2ED36-0DA0 MCCB, 20 A, 3-Pole, 52.5","metaDescription":"Siemens SENTRON 3VA1020-2ED36-0DA0 molded case circuit breaker, 20 A rated, 3-pole, 52.5 kA breaking capacity at 240 V. Undervoltage release. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"76.2 mm","Height":"130 mm","Maximum":"0 A","Minimum":"0 A","at 240 V":"52.5 kA","at 415 V":"32 kA","at 440 V":"13.6 kA","at 500 V":"7.5 kA","at 690 V":"7.5 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","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":"Yes","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"14.5 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA10202ED360AA0","Design Of The Auxiliary Release":"undervoltage release (UVR)","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"TM210","Design Of Short-Circuit Protection":"For switching power values in DC networks, see the 3VA molded case circuit breaker device manual; link to be found under Service & Support in the last chapter","protection class IP / on the front":"IP40","Of The Integrated Auxiliary Trip Unit":"3VA9608-0BB25","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":"B","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"box terminal on both sides","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=308751&mlfb=3VA1020-2ED36-0DA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1020-2ED36-0DA0/alternatives.json"},"ai":{"faq":[{"question":"Will 3VA1020-2ED36-0DA0 drop into a panel specified around 5SQ2370-2YA05 without rewiring?","answer":"The 3VA1020-2ED36-0DA0 is a 3-pole MCCB with a 76.2 mm width and 70 mm depth, which is a standard footprint for this class. The 5SQ2370-2YA05 is a different manufacturer's equivalent; physical interchangeability depends on the panel's mounting rail and busbar spacing. The terminal lug positions and wire bending space should be verified against the existing panel layout before substitution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1020-2ED36-0DA0","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/3VA1020-2ED36-0DA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}