{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1020-3ED36-0CA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1020-3ED36-0CA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1020-3ED36-0CA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1020-3ED36-0CA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1020-3ED36-0CA0, molded case circuit breaker, 3-pole, 20 A rated continuous current, 75.6 kA breaking capacity at 240 V, TM210 thermal-magnetic release, undervoltage release included.","salesMarkdown":"## Line protection MCCB with undervoltage release The Siemens SENTRON 3VA1020-3ED36-0CA0 is a 3-pole molded case circuit breaker rated for 20 A continuous current at 40 °C, with a TM210 thermal-magnetic overcurrent release. It carries a 75.6 kA interrupting rating at 240 V, stepping down to 52.5 kA at 415 V and 32 kA at 440 V — numbers that matter when you're coordinating selectivity downstream of a transformer or generator. ## Current-carrying capacity across the panel temperature range At 55 °C it derates to 19.2 A, dropping to 18 A at 70 °C. That thermal curve means you don't lose headroom in a warm enclosure unless ambient pushes past 50 °C — common in packed panels or near motor starters. The breaker measures 76.2 mm wide, 130 mm tall, and 70 mm deep — a standard 3-pole MCCB footprint that fits SENTRON distribution blocks and panel-mounting plates. No auxiliary contacts are fitted as standard; the auxiliary trip accessory (order code 3VA9608-0BB24) is available as a field-addable option if you need remote status. ## What the TM210 release and UVR mean for your circuit The TM210 is a fixed thermal-magnetic release — thermal element for overload, magnetic for short-circuit. No electronic adjustment, no communication, no phase-failure detection. That keeps it simple and reliable for line protection where you don't need metering or remote trip. The undervoltage release is wired separately; if its coil loses power the breaker trips immediately. That's the standard way to implement a safety shunt or generator transfer interlock.","metaTitle":"Siemens 3VA1020-3ED36-0CA0 SENTRON MCCB, 20 A, 3-Pole, 75.6","metaDescription":"Siemens SENTRON 3VA1020-3ED36-0CA0 molded case circuit breaker, 20 A rated, 3-pole, 75.6 kA breaking at 240 V. Active production. Undervoltage release included. Sourced to order ag","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":"75.6 kA","at 415 V":"52.5 kA","at 440 V":"32 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":"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":"3VA9608-0BB24","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":"N","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=65973&mlfb=3VA1020-3ED36-0CA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1020-3ED36-0CA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1020-3ED36-0CA0 and 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 — submit an RFQ for a firm quote."},{"question":"What does the undervoltage release on this MCCB do?","answer":"The built-in undervoltage release (UVR) trips the breaker when its coil voltage drops below the dropout threshold, providing automatic disconnection on loss of control power — used in emergency-stop circuits, mains-loss schemes, and generator transfer interlocks."},{"question":"What are the interrupting ratings at different voltages?","answer":"75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at 690 V — these values govern selectivity coordination and SCCR compliance for the downstream panel."},{"question":"Will 3VA1020-3ED36-0CA0 drop into a panel designed for 3VA1010-2ED32-0JA0?","answer":"Both are 3-pole SENTRON 3VA frame breakers with the same 76.2 mm width, 130 mm height, and 70 mm depth, so the mechanical footprint is identical. The key difference is the TM210 release (20 A fixed) versus the TM release on the 3VA1010 variant — verify the continuous current rating matches your circuit before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1020-3ED36-0CA0","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/3VA1020-3ED36-0CA0 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}}