{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1020-2ED36-0BA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1020-2ED36-0BA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1020-2ED36-0BA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1020-2ED36-0BA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1020-2ED36-0BA0, molded case circuit breaker, 3-pole, 20 A rated at 40 °C, 52.5 kA breaking capacity at 240 V AC, TM210 thermal-magnetic trip, with undervoltage release.","salesMarkdown":"The Siemens SENTRON 3VA1020-2ED36-0BA0 is a 3-pole molded case circuit breaker (MCCB) rated 20 A at 40 °C with a TM210 thermal-magnetic trip unit — the thermal element handles overloads, the magnetic element clears short-circuits. Its interrupting capacity hits 52.5 kA at 240 V AC, 32 kA at 415 V, and 13.6 kA at 440 V, so it handles high-fault utility feeds or transformer secondaries in commercial and light industrial distribution panels. No ground-fault monitoring module is fitted, so if you need GF protection that's a separate accessory add-on. Dimensions are 130 mm height, 76.2 mm width, 70 mm depth — a standard SENTRON 3VA1 frame footprint that fits the same DIN-rail or screw-mount panel cutout as other 3VA1 breakers. The 14.5 W maximum power loss is moderate for a 20 A frame; factor that into enclosure thermal rise if you're packing multiple breakers in a sealed cabinet. ## Current rating across the temperature range The TM210 trip unit holds a full 20 A from 40 °C through 55 °C (–), then derates to 19 A at 60 °C and 65 °C, and stays at 19 A at 70 °C (–). That's a clean thermal curve — no derating until you cross 55 °C, which covers most panel ambient conditions. If your enclosure runs above 55 °C, plan for the 1 A reduction or move to a 25 A frame. ## Breaking capacity — the real SCCR story The interrupting ratings are given at multiple voltages: 52.5 kA at 240 V, 32 kA at 415 V, 13.6 kA at 440 V, and 7.5 kA at both 500 V and 690 V (–). That 52.5 kA at 240 V is a strong number for a 20 A frame — it means this breaker can be used on high-fault-capacity 240 V services without upstream current-limiting fuses. At 480 V (not explicitly listed, but interpolate between 440 V and 500 V), expect roughly 10–11 kA, which still covers most 480 V panel SCCR requirements. ## Undervoltage release — what it does The undervoltage release (UVR) built into this variant trips the breaker when the control voltage falls below a set dropout threshold — typically 70–35% of rated voltage per IEC 60947-1. This is mandatory in many motor feeder designs to prevent automatic restart after a voltage dip. The UVR is factory-fitted; no field kit required. Note that the trip indicator is not present, so there's no mechanical flag showing the breaker tripped on UV versus overcurrent — you'd need to check the auxiliary contact or the load status. The storage minimum of -40 °C is typical for cold-weather sites; the operating maximum of 70 °C matches the derating curve above. No communication function or other measurement function is fitted — this is a straight thermal-magnetic breaker, not a metering or communicating device.","metaTitle":"Siemens 3VA1020-2ED36-0BA0 SENTRON MCCB, 20A 3-Pole, 52.5kA","metaDescription":"Siemens SENTRON 3VA1020-2ED36-0BA0 molded case circuit breaker, 20A rated, 3-pole, 52.5kA breaking capacity at 240V AC. Active production, sourced to order. Request quote.","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","Maximum":"0 A","Minimum":"0 A","at 240 V":"52.5 kA","at 415 V":"32 kA","at 440 V":"13.6 kA","at 500 V":"7.5 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":"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":"Yes","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"14.5 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA10202ED360AA0","Design Of The Auxiliary Release":"undervoltage release (UVR)","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","Of The Integrated Auxiliary Trip Unit":"3VA9608-0BB11","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"500 V","reference code / according to IEC 81346-2":"Q","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":"B","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"box terminal on both sides","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal"}},"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=134390&mlfb=3VA1020-2ED36-0BA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1020-2ED36-0BA0/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative to 3VA1020-2ED36-0BA0?","answer":"The closest peer in the same SENTRON 3VA1 family is 3VA1020-3ED36-0AA0. The key delta: the -3ED36 variant uses an electronic trip unit (ETU) instead of the TM210 thermal-magnetic trip. The ETU offers adjustable overload and short-circuit thresholds, plus optional ground-fault and communication modules. Form, fit, and function are identical — same 20 A frame, same 3-pole footprint, same breaking capacities. If your BOM requires fixed thermal-magnetic protection, stick with the -2ED36; if you need adjustability or future metering, the -3ED36 is the drop-in upgrade. No rewiring needed — same pane"},{"question":"Where can I buy 3VA1020-2ED36-0BA0 and how is it quoted?","answer":"This part is sourced and quoted to order through independent industrial distribution. Submit an RFQ; availability and current pricing are confirmed at quote time. No stock count or price is published here."},{"question":"What compliance documentation does Siemens provide for this MCCB?","answer":"The SENTRON 3VA series carries IEC 60947-2 certification for molded case circuit breakers. Siemens typically provides CE declaration of conformity, RoHS and REACH compliance statements, and UL/CSA recognition depending on the specific variant. The evidence does not list individual cert marks for this order code; request the manufacturer's declaration with your RFQ."},{"question":"Will 3VA1020-2ED36-0BA0 drop into a panel specified for 3VA1020-3ED36-0AA0?","answer":"Yes — same SENTRON 3VA1 frame, same 130 mm height, 76.2 mm width, 70 mm depth. The mounting footprint, terminal spacing, and DIN-rail clip are identical. No rewiring or panel modification needed. The only difference is the trip unit: thermal-magnetic (TM210) on the -2ED36 versus electronic (ETU) on the -3ED36."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1020-2ED36-0BA0","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/3VA1020-2ED36-0BA0 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}}