{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1020-3ED32-0AF0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1020-3ED32-0AF0","canonicalUrl":"https://aoctrl.com/siemens/3VA1020-3ED32-0AF0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1020-3ED32-0AF0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1020-3ED32-0AF0, molded case circuit breaker, 3-pole, 20 A rated current, 75.6 kA breaking capacity at 240 V, line protection design.","salesMarkdown":"Breaking capacity is where this breaker earns its keep: 75.6 kA at 240 V, 52.5 kA at 415 V, and 32 kA at 440 V. At 500 V and 690 V it still holds 7.5 kA — enough for most motor branch circuits on a 480/277 V system. The overcurrent release is a TM210 thermal-magnetic unit — fixed thermal and magnetic settings, no electronic adjustment. That keeps the part simple and reliable for standard feeder or branch protection where you don't need the selectivity curves of a electronic trip unit. It also has a trip indicator on the front, so when you're walking the line after a fault you can spot the tripped breaker without opening the panel door. Power loss is 12 W maximum, so thermal rise in a sealed panel is manageable; just don't pack it cheek-by-jowl with other high-loss devices without checking the internal temperature.","metaTitle":"Siemens 3VA1020-3ED32-0AF0 SENTRON MCCB, 20 A, 3-Pole, 75.6","metaDescription":"Siemens SENTRON 3VA1020-3ED32-0AF0 molded case circuit breaker, 20 A rated, 3-pole, 75.6 kA interrupting at 240 V. Active production. Sourced to order against RFQ.","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":"75.6 kA","at 415 V":"52.5 kA","at 440 V":"32 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":"No","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"12 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA10203ED320AA0","Design Of The Auxiliary Switch":"1 auxiliary switch + 1 trip alarm switch HQ","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","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":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching Capacity Class Of The Circuit Breaker":"N","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"nut keeper kit on both ends","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=13209&mlfb=3VA1020-3ED32-0AF0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1020-3ED32-0AF0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1020-3ED32-0AF0?","answer":"Submit an RFQ through this listing. Pricing and stock are confirmed at quote time; we source the part to order through independent distribution channels."},{"question":"What is the interrupting capacity of 3VA1020-3ED32-0AF0 at 240 V?","answer":"75.6 kA at 240 V, which covers most secondary-side fault currents from transformers up to about 2500 kVA at that voltage."},{"question":"Will 3VA1020-3ED32-0AF0 drop into a panel that was specified around 3VA1020-3ED36-0AA0 without rewiring?","answer":"The frame dimensions are identical — same height, width, and depth — and both are 3-pole SENTRON MCCBs. The difference is the overcurrent release: the -0AF0 uses a TM210 thermal-magnetic unit; the -0AA0 has a different trip unit. If your coordination study was done for the -0AA0's trip curve, you need to verify the -0AF0's curve matches before swapping. No rewiring of the bus bars or terminals is required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1020-3ED32-0AF0","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/3VA1020-3ED32-0AF0 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}}