{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1020-4ED32-0HH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1020-4ED32-0HH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1020-4ED32-0HH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1020-4ED32-0HH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1020-4ED32-0HH0, molded case circuit breaker, 3-pole, 20 A rated continuous current, TM210 thermal-magnetic release, 121 kA breaking capacity at 240 V AC, line protection version, IP40 front, shunt trip STL auxiliary release.","salesMarkdown":"The Siemens SENTRON 3VA1020-4ED32-0HH0 is a 3-pole molded case circuit breaker rated for a continuous current Iu of 20 A, with a TM210 thermal-magnetic overcurrent release — the '210' designates the release family tuned for this frame size. The 20 A rating holds flat from 40 °C to 50 °C, then derates to 19.2 A at 55 °C, 18.8 A at 60 °C, 18.4 A at 65 °C, and 18 A at 70 °C, so in a warm panel the usable current drops; size the load circuit for the actual ambient, not the nameplate. Breaking capacity runs 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V. ## Auxiliary and release configuration This variant ships without an undervoltage release, without ground fault monitoring, without phase failure detection, and without communication function. The only auxiliary release fitted is the shunt trip (STL), which uses a separate voltage trigger to trip the breaker remotely. The integrated auxiliary trip order code is 3VA9688-0BL30 — order that separately if you need a replacement or spare trigger block. Mechanical endurance is rated at 15,000 cycles, which covers typical panel-switching duty on feeder or branch circuits.","metaTitle":"Siemens 3VA1020-4ED32-0HH0 SENTRON MCCB, 20 A, 3-Pole, 121 k","metaDescription":"Siemens SENTRON 3VA1020-4ED32-0HH0 molded case circuit breaker, 20 A rated continuous current, 3 poles, 121 kA breaking capacity at 240 V. Current lifecycle. Quoted 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":"Yes","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 + 1 trip alarm switch 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":"3","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","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=418524&mlfb=3VA1020-4ED32-0HH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1020-4ED32-0HH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1020-4ED32-0HH0?","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":"What is the closest functional second-source for 3VA1020-4ED32-0HH0?","answer":"The 3VA1110-5EE32-0JA0 is a higher-current SENTRON MCCB but shares the same 3-pole form factor and SENTRON platform; it will not drop into the same panel without checking the load rating and release coordination, since the 3VA1020 is a 20 A line protection breaker and the 3VA1110 is a different frame size."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1020-4ED32-0HH0","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/3VA1020-4ED32-0HH0 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}}