{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1020-4ED36-0HC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1020-4ED36-0HC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1020-4ED36-0HC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1020-4ED36-0HC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1020-4ED36-0HC0, 3-pole molded case circuit breaker, 20 A rated continuous current Iu, TM210 thermal-magnetic release, shunt trip (STL), interrupting 121 kA at 240 V.","salesMarkdown":"The Siemens SENTRON 3VA1020-4ED36-0HC0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current Iu of 20 A and an interrupting capacity of 121 kA at 240 V. That interrupting figure drops to 75.6 kA at 415 V and 52.5 kA at 440 V, so if your panel's available fault current sits above those numbers at the service voltage, this breaker still clears it safely — selectivity studies need that curve, not just the headline. The TM210 thermal-magnetic release handles overload and short-circuit tripping without phase failure detection or ground fault monitoring; it's a straightforward line-protection device, not a multifunction feeder breaker. This breaker holds its 20 A rating from 40 °C through 50 °C ambient, then derates gradually to 18 A at 70 °C. ## Auxiliaries and integration Two auxiliary switches HQ come fitted (the auxiliary contact version is 2 HQ), and the integrated shunt trip (STL) is ordered separately as 3VA9688-0BL30. Mounting is standard SENTRON 3VA panel or DIN-rail footprint; IP40 on the front keeps dust out of the mechanism in a typical enclosure.","metaTitle":"Siemens 3VA1020-4ED36-0HC0 SENTRON MCCB, 20 A, 121 kA at 240","metaDescription":"Siemens SENTRON 3VA1020-4ED36-0HC0 molded case circuit breaker, 3-pole, 20 A rated, 121 kA interrupting at 240 V. TM210 release, shunt trip. 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":"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":"Yes","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"No","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":"Shunt trip (STL)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9688-0BL30","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":"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":"box terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, round conductor terminal, stranded":"1 x (1.5 - 70 mm²)"}},"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=208663&mlfb=3VA1020-4ED36-0HC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1020-4ED36-0HC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1020-4ED36-0HC0 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"Will 3VA1020-4ED36-0HC0 drop into a panel specified around 3VA1020-3ED36-0AA0 without rewiring?","answer":"Both share the same 20 A frame and TM210 release, but the auxiliary contact version and shunt trip design differ — verify auxiliary wiring compatibility before direct swap."},{"question":"What is the interrupting capacity at 415 V?","answer":"75.6 kA at 415 V. It also clears 121 kA at 240 V, 52.5 kA at 440 V, and 11.9 kA at 690 V."},{"question":"What auxiliary options come with this MCCB?","answer":"Two auxiliary switches HQ are fitted, and a shunt trip (STL) is available as order code 3VA9688-0BL30. No undervoltage release or communication module is included."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1020-4ED36-0HC0","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/3VA1020-4ED36-0HC0 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}}