{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1020-3ED32-0BA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1020-3ED32-0BA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1020-3ED32-0BA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1020-3ED32-0BA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1020-3ED32-0BA0, molded case circuit breaker, line protection, 3-pole, 20 A rated continuous current (Iu), TM210 thermal-magnetic release, undervoltage release (UVR) fitted, interrupting ratings 75.6 kA at 240 V / 52.5 kA at 415 V.","salesMarkdown":"## Siemens SENTRON 3VA1020-3ED32-0BA0 — 20 A MCCB with undervoltage release The Siemens SENTRON 3VA1020-3ED32-0BA0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current Iu of 20 A at ambient temperatures up to 50 °C, with a slight derating curve above that — 19.2 A at 55 °C down to 18 A at 70 °C. The TM210 thermal-magnetic release handles overload and short-circuit protection; the interrupting capacity hits 75.6 kA at 240 V and 52.5 kA at 415 V, which covers most industrial distribution panels and motor control center infeeds. The 75.6 kA at 240 V and 52.5 kA at 415 V tell you the maximum fault current this MCCB can safely clear at those voltages. In practice, that means it can be installed downstream of transformers or busbars with high available fault current — typical for 240 V distribution in North American panels or 415 V systems in IEC markets. The 3VA1020-3ED32-0BA0 measures 76.2 mm wide, 130 mm high, and 70 mm deep — standard 3-pole MCCB footprint for the SENTRON 3VA platform. No communication module or phase-failure detection is built in — this is a straightforward line-protection breaker. ## Undervoltage release — what it does and why it matters The undervoltage release (UVR) is a separate release coil that trips the breaker when its supply voltage falls below a threshold. On this unit, the UVR is factory-fitted (design: undervoltage release). That means the breaker will open if control power is lost — useful for preventing automatic restart after a voltage dip, or for integration into an emergency-stop chain where loss of the safety circuit should drop the breaker. There is no voltage trigger or trip indicator on this variant, so the only trip indication is the handle position. ## Temperature derating — what 20 A really buys you Above that, it derates linearly: 19.2 A at 55 °C, 18.8 A at 60 °C, 18.4 A at 65 °C, and 18 A at 70 °C.","metaTitle":"Siemens 3VA1020-3ED32-0BA0 SENTRON MCCB, 20 A, 3-Pole, 75.6","metaDescription":"Siemens SENTRON 3VA1020-3ED32-0BA0 molded case circuit breaker, 20 A rated, 3-pole, 75.6 kA at 240 V. TM210 release, undervoltage release included. Current production. Quoted to or","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":"75.6 kA","at 415 V":"52.5 kA","at 440 V":"32 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":"N","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=238120&mlfb=3VA1020-3ED32-0BA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1020-3ED32-0BA0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1020-3ED32-0BA0?","answer":"We source and quote this part to order against an RFQ. Submit a request and we'll confirm availability and current pricing at quote time."},{"question":"Will 3VA1020-3ED32-0BA0 drop into a panel specified for 3VA1010-2ED32-0JA0?","answer":"The 3VA1020-3ED32-0BA0 shares the same 3-pole SENTRON 3VA footprint — 76.2 mm width, 130 mm height — so it will physically fit the same DIN rail or mounting pattern. The key difference is the 20 A rating vs. the 10 A rating of the 3VA1010 variant, and the TM210 release vs. a different release type. Check your load current and coordination study before swapping."},{"question":"What compliance documentation does Siemens provide for this MCCB?","answer":"Siemens provides RoHS and REACH declarations, plus IEC 60947-2 compliance documentation for the SENTRON 3VA series. Specific UL/CSA listings vary by variant; verify with the factory certificate for this exact order code if your project requires a specific mark."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1020-3ED32-0BA0","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/3VA1020-3ED32-0BA0 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}}