{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1020-2ED36-0BH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1020-2ED36-0BH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1020-2ED36-0BH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1020-2ED36-0BH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1, molded case circuit breaker, 3VA1020-2ED36-0BH0, 3-pole, 20 A, 52.5 kA at 240 V AC, line protection, with undervoltage release.","salesMarkdown":"Rated 20 A continuous at 40 °C, it carries a solid 52.5 kA interrupting capacity at 240 V AC — enough to handle a stiff utility fault without upstream coordination headaches. ## Breaking capacity — where it matters This MCCB delivers 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's a strong curve for a 20 A frame — the high 240 V number means it's a good fit for North American 120/240 V split-phase panels where available fault current can run high. At 690 V the 7.5 kA still covers most industrial motor branch circuits. ## Thermal performance and panel fit The 20 A rating holds steady from 40 °C up to 55 °C, then only drops to 19 A at 65 °C and 70 °C. That's a tight derating curve — you don't lose headroom in a warm enclosure. Dimensions are 130 mm tall, 76.2 mm wide, and 70 mm deep, which is the standard 3VA1 footprint. The UVR means the breaker drops out on loss of control voltage — standard for safety circuits where a machine must isolate on power loss. The trip alarm switch gives a positive signal when the breaker trips on fault, not just manual open. Max power loss at rated load is 14.5 W, which is modest for a 3-pole 20 A MCCB with auxiliaries.","metaTitle":"Siemens 3VA1020-2ED36-0BH0 SENTRON MCCB, 20A, 52.5kA at 240V","metaDescription":"Siemens 3VA1020-2ED36-0BH0 SENTRON molded case circuit breaker, 3-pole, 20 A rated, 52.5 kA breaking at 240 V 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":"Yes","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 Switch":"2 auxiliary switches + 1 trip alarm switch HQ","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":"3","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","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=350195&mlfb=3VA1020-2ED36-0BH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1020-2ED36-0BH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1020-2ED36-0BH0 and what is the lead time?","answer":"This MCCB is sourced and quoted to order through independent distribution. Availability and current pricing are confirmed at quote time against an RFQ — submit one for a firm lead-time estimate."},{"question":"What is the breaking capacity of this MCCB at 240 V?","answer":"At 240 V AC the interrupting rating is 52.5 kA. It also carries 32 kA at 415 V, 13.6 kA at 440 V, and 7.5 kA at both 500 V and 690 V."},{"question":"What are the physical dimensions of 3VA1020-2ED36-0BH0?","answer":"Height is 130 mm, width is 76.2 mm, and depth is 70 mm."},{"question":"Does this breaker include an undervoltage release?","answer":"Yes, it ships with an undervoltage release (UVR), plus 2 auxiliary switches and 1 trip alarm switch (HQ)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1020-2ED36-0BH0","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/3VA1020-2ED36-0BH0 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}}