{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1020-2ED32-0BA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1020-2ED32-0BA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1020-2ED32-0BA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1020-2ED32-0BA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1020-2ED32-0BA0, molded case circuit breaker, 3-pole, 20 A rated continuous current Iu, TM210 thermal-magnetic release, 52.5 kA at 240 V, 70 mm depth.","salesMarkdown":"Its interrupting capacity reaches 52.5 kA at 240 V, 32 kA at 415 V, 13.6 kA at 440 V, and 7.5 kA at 690 V — so it handles fault currents all the way up to the 690 V level common in industrial distribution. The breaker ships with an integrated undervoltage release (UVR) but no auxiliary contacts, no communication module, and no ground-fault monitoring; it is a straight line-protection device for panel builders who need a clean, no-frills MCCB on a DIN rail. ## Thermal derating — what the 20 A rating actually means at panel temperature At 55 °C it derates to 19.2 A, at 60 °C to 18.8 A, at 65 °C to 18.4 A, and at 70 °C to 18 A. That is the figure to use for the load schedule, not the 20 A nameplate. That 76.2 mm width is a standard 3-pole MCCB footprint — it occupies three 25.4 mm (1-inch) module positions on a DIN rail. ## What the TM210 release and UVR mean for commissioning The TM210 is a fixed thermal-magnetic release — no interchangeable rating plugs. The thermal element tracks the derating curve above; the magnetic pickup is factory-set for the 20 A frame. No trip indicator on the front, so a remote indication requires adding an auxiliary contact block (not included). Endurance is rated at 15,000 electrical operations — fine for a distribution feeder, not for frequent switching duty.","metaTitle":"Siemens 3VA1020-2ED32-0BA0 MCCB, 20 A, 52.5 kA","metaDescription":"Siemens SENTRON 3VA1020-2ED32-0BA0 molded case circuit breaker, 20 A rated, 52.5 kA at 240 V. TM210 release, undervoltage trip. Current production, available 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","at 240 V":"52.5 kA","at 415 V":"32 kA","at 440 V":"13.6 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":"19.2 A","at 60 °C":"18.8 A","at 65 °C":"18.4 A","at 70 °C":"18 A","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","Latching - endurance":"15 000","Undervoltage Release":"Yes","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"Without","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"20 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"Undervoltage release (UVR)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9608-0BB11","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","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"1","Adjustable response value time / tr min.":"1","Max. rated operational voltage Ue with DC":"500 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"No","Adjustable response value current / Ir max.":"20 A","Adjustable response value current / li max.":"320 A","Adjustable response value current / li min.":"320 A","Adjustable response value current / lr min.":"20 A","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":"B","Max. rated operational current of the frame size":"100 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"lug terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"17 x 6.5","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"12 x 0"}},"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=77138&mlfb=3VA1020-2ED32-0BA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1020-2ED32-0BA0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of this MCCB at 415 V?","answer":"At 415 V the breaker interrupts 32 kA. It also carries ratings of 52.5 kA at 240 V, 13.6 kA at 440 V, and 7.5 kA at 690 V."},{"question":"Does the 3VA1020-2ED32-0BA0 include auxiliary contacts or a shunt trip?","answer":"No auxiliary contacts are included. The breaker ships with an undervoltage release (UVR) only. An integrated auxiliary trip (order code 3VA9608-0BB11) is available as a separate accessory if needed."},{"question":"Where can I buy the 3VA1020-2ED32-0BA0 and how is it quoted?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for your volume and delivery schedule."},{"question":"What is the thermal derating for this breaker above 50 °C?","answer":"The 20 A rating holds to 50 °C. At 55 °C it derates to 19.2 A, at 60 °C to 18.8 A, at 65 °C to 18.4 A, and at 70 °C to 18 A."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1020-2ED32-0BA0","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/3VA1020-2ED32-0BA0 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}}