{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1020-2ED32-0BC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1020-2ED32-0BC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1020-2ED32-0BC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1020-2ED32-0BC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1020-2ED32-0BC0, molded case circuit breaker, 3-pole, 20 A rated continuous current, TM210 thermal-magnetic overcurrent release, with undervoltage release, 52.5 kA breaking capacity at 240 V.","salesMarkdown":"Breaking capacity climbs with available fault current: 52.5 kA at 240 V, 32 kA at 415 V, 13.6 kA at 440 V, and 7.5 kA at 690 V. That 240 V number is what you care about on a 240/120 V split-phase panel; the 415 V figure is the one for European 400 V three-phase. Both are high enough to back up a distribution board without cascading. That's a hard requirement on safety circuits or any machine that needs a guaranteed trip on loss of control power. 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. If your panel ambient sits above 50 °C — say inside a non-ventilated enclosure or near a heat source — you lose roughly 0.4 A per 5 °C step. Size the upstream conductor and load for the derated figure, not the nameplate 20 A. ## Auxiliary contacts and panel fit Comes with 2 auxiliary switches (HQ type) factory-installed. That gives you two sets of form-C contacts for status feedback — one for the control system, one for a local indicator. No separate auxiliary contact block to order and snap on. The front face carries an IP40 protection class — splash-proof from the front, but no protection on the sides or back (those are inside the panel anyway).","metaTitle":"Siemens 3VA1020-2ED32-0BC0 SENTRON MCCB, 20A, 52.5kA at 240V","metaDescription":"Siemens 3VA1020-2ED32-0BC0 SENTRON molded case circuit breaker, 20A rated current, 52.5kA breaking at 240V, TM210 thermal-magnetic release, undervoltage release included, current p","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":"2 auxiliary switches HQ","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":"2","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","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=531295&mlfb=3VA1020-2ED32-0BC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1020-2ED32-0BC0/alternatives.json"},"ai":{"faq":[{"question":"What is 3VA1020-2ED32-0BC0's listed depth?","answer":"70 mm. That's the depth behind the panel face — the breaker body, not including the front handle projection."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1020-2ED32-0BC0","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/3VA1020-2ED32-0BC0 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}}