{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1020-2ED36-0KC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1020-2ED36-0KC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1020-2ED36-0KC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1020-2ED36-0KC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1020-2ED36-0KC0, molded case circuit breaker, 3-pole, 20 A rated continuous current (Iu), TM210 thermal-magnetic release, shunt trip (STL), 2 HQ auxiliary switches, interrupting ratings 52.5 kA at 240 V / 32 kA at 415 V / 13.6 kA at 440 V / 7.5 kA at 690 V.","salesMarkdown":"Interrupting capacity is the headline: 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 is enough headroom for most secondary distribution panels fed from a transformer in the 500–1000 kVA range. Below 415 V the interrupting rating climbs, so the same breaker covers 240 V split-phase or 208Y/120 V panels with substantial margin. 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. For a panel that runs warm — say a packed enclosure with multiple breakers in a row — the 50 °C flat rating is generous; the derating curve is linear above that, so a 60 °C internal ambient still leaves 18.8 A continuous, which is 94% of nameplate. ## Auxiliary and shunt trip configuration This variant ships with two HQ auxiliary switches and a shunt trip (STL) release. The HQ contacts are high-rupturing-capacity auxiliary switches rated for signal feedback — they indicate breaker position (open/closed/tripped) to a PLC or status lamp. The shunt trip allows remote tripping by applying a control voltage; it is wired separately from the main power circuit, so a safety relay or emergency-stop chain can open the breaker without requiring a manual visit to the panel. The integrated auxiliary trip order code is 3VA9688-0BL33, which is the factory-fitted internal accessory for this specific build.","metaTitle":"Siemens 3VA1020-2ED36-0KC0 SENTRON MCCB, 20 A, 52.5 kA at 24","metaDescription":"Siemens SENTRON 3VA1020-2ED36-0KC0 molded case circuit breaker, 3-pole, 20 A rated continuous current, 52.5 kA interrupting at 240 V. TM210 release, shunt trip, 2 HQ aux switches.","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":"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":"3VA9688-0BL33","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":"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=248223&mlfb=3VA1020-2ED36-0KC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1020-2ED36-0KC0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of 3VA1020-2ED36-0KC0 at 415 V?","answer":"At 415 V the interrupting rating is 32 kA. At 240 V it is 52.5 kA, at 440 V it is 13.6 kA, and at 690 V it is 7.5 kA."},{"question":"Does 3VA1020-2ED36-0KC0 include a shunt trip?","answer":"Yes, this variant includes a shunt trip (STL) release for remote tripping, plus two HQ auxiliary switches for contact status feedback."},{"question":"What is the ambient temperature derating for 3VA1020-2ED36-0KC0?","answer":"The breaker carries its full 20 A rating from 40 °C to 50 °C. Above 50 °C it derates linearly: 19.2 A at 55 °C, 18.8 A at 60 °C, 18.4 A at 65 °C, and 18 A at 70 °C."},{"question":"Where can I buy 3VA1020-2ED36-0KC0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1020-2ED36-0KC0","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/3VA1020-2ED36-0KC0 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}}