{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1020-4ED32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1020-4ED32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1020-4ED32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1020-4ED32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1020-4ED32-0AA0, molded case circuit breaker, 3-pole, 20 A, TM210 thermal-magnetic release, line protection, breaking capacity 121 kA at 240 V AC.","salesMarkdown":"## SENTRON 3VA1020-4ED32-0AA0 — 20 A MCCB with TM210 release The Siemens 3VA1020-4ED32-0AA0 is a 3-pole SENTRON molded case circuit breaker (MCCB) rated for 20 A continuous current at 40 °C, with a TM210 thermal-magnetic overcurrent release designed for line protection. The 3VA1020-4ED32-0AA0 measures 130 mm high, 76.2 mm wide, and 70 mm deep — a standard 3-pole MCCB footprint for DIN-rail or screw-mount panel integration. ## Breaking capacity by voltage — the real selection gate The interrupting rating is not a single number: at 240 V it is 121 kA, at 415 V it is 75.6 kA, at 440 V it is 52.5 kA, and at 500 V or 690 V it drops to 11.9 kA. That 11.9 kA plateau at higher voltages is the binding constraint for a 480 V or 600 V class installation — if your available fault current exceeds 11.9 kA at those voltages, this breaker is not a fit. The TM210 release is a thermal-magnetic type, so no electronic adjustment or communication function is present.","metaTitle":"Siemens 3VA1020-4ED32-0AA0 SENTRON MCCB, 20 A, 3-Pole, 121 k","metaDescription":"Siemens 3VA1020-4ED32-0AA0 SENTRON molded case circuit breaker, 20 A continuous, 3-pole, TM210 release, breaking capacity 121 kA at 240 V AC. Current production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","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 500 V":"11.9 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":"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":"No","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"12 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Courant permanent assigné Iu":"20 A","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","operating voltage / at AC / rated value":"690 V","Max. rated operational voltage Ue with DC":"500 V","reference code / according to IEC 81346-2":"Q","Continuous Current / Rated Value / Maximum":"100 A","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":"S","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"nut keeper kit on both ends","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 mm","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"12 x 1 mm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d176a9dbc0d232439974be2cf78b9a6a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=517588&mlfb=3VA1020-4ED32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1020-4ED32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Will 3VA1020-4ED32-0AA0 drop into a panel specified for 3VA1020-3ED36-0AA0?","answer":"Both are 3-pole SENTRON MCCBs in the same 3VA1020 frame, so the physical footprint (130 mm x 76.2 mm x 70 mm) is identical. The difference is in the overcurrent release: the -4ED32-0AA0 carries a TM210 (20 A), while the -3ED36-0AA0 uses a different release rating. No rewiring is needed if the mounting and bus-bar spacing match, but verify the continuous current rating and trip curve against your load."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1020-4ED32-0AA0","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/3VA1020-4ED32-0AA0 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}}