{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1020-4ED32-0DA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1020-4ED32-0DA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1020-4ED32-0DA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1020-4ED32-0DA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1020-4ED32-0DA0 molded case circuit breaker, 3-pole, 20 A rated continuous current, TM210 thermal-magnetic release, line protection version, with integrated undervoltage release, IP40 front protection.","salesMarkdown":"## What this 3VA1020-4ED32-0DA0 brings to a panel It is the line protection variant, meaning it protects downstream cables and equipment against overload and short-circuit without integrated ground-fault or phase-failure detection. The TM210 release gives a fixed thermal pickup and magnetic trip that is non-interchangeable in the field — what you see is what you get for the 20 A frame. At 240 V it interrupts faults up to 121 kA, at 415 V up to 75.6 kA, and at 690 V still holds 11.9 kA, so it handles high available fault current in distribution panels without requiring a current-limiting upstream device in most installations. Above that it begins to taper: 19.2 A at 55 °C, 18.8 A at 60 °C, 18.4 A at 65 °C, and 18 A at 70 °C. That 76.2 mm width is a standard 3-pole MCCB footprint — three 25.4 mm pole pitches — so it drops into existing DIN-rail or screw-mounted panel layouts without re-drilling. ## Integrated undervoltage release The UVR is designed in, not added as a field-installed accessory, so the wiring plan should account for it from the start.","metaTitle":"Siemens 3VA1020-4ED32-0DA0 SENTRON MCCB, 20 A, 3-Pole, Line","metaDescription":"Siemens SENTRON 3VA1020-4ED32-0DA0 molded case circuit breaker, 20 A rated continuous current, 3-pole, line protection with TM210 release and undervoltage release. Breaking capacit","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":"121 kA","at 415 V":"75.6 kA","at 440 V":"52.5 kA","at 690 V":"11.9 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":"3VA9608-0BB25","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":"S","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=171686&mlfb=3VA1020-4ED32-0DA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1020-4ED32-0DA0/alternatives.json"},"ai":{"faq":[{"question":"What breaking capacity does 3VA1020-4ED32-0DA0 have at 240 V?","answer":"It interrupts 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V."},{"question":"Does this MCCB include an undervoltage release?","answer":"Yes, it ships with a factory-integrated undervoltage release (UVR) as the auxiliary release. No separate accessory purchase is needed for undervoltage protection."},{"question":"Where can I buy 3VA1020-4ED32-0DA0 and how is it quoted?","answer":"This part is sourced through independent distribution and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commitment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1020-4ED32-0DA0","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/3VA1020-4ED32-0DA0 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}}