{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1020-3ED36-0AH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1020-3ED36-0AH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1020-3ED36-0AH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1020-3ED36-0AH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1020-3ED36-0AH0, molded case circuit breaker, 3-pole, 20 A rated continuous current, TM210 release, 75.6 kA breaking capacity at 240 V, IP40 front protection.","salesMarkdown":"It's built to sit in a distribution panel and clear faults fast. Breaking capacity is the headline here: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and still 7.5 kA at 690 V. That 75.6 kA figure at 240 V means it handles high available fault current on the secondary side of a 240/120 V distribution transformer without needing a current-limiting fuse upstream. The 690 V rating is useful for 600 V class Canadian or 690 V European industrial networks — it's not just a 480 V breaker. ## Derating and thermal reality At 55 °C it drops to 19.2 A, at 60 °C to 18.8 A, and at 70 °C to 18 A. That gives you two form-C contacts for status feedback and a dedicated alarm contact that changes state only on a trip event — useful for remote fault indication without tying up the aux contacts. ## Integration notes The 3VA1020-3ED36-0AH0 uses a TM210 release — fixed thermal and fixed magnetic settings. No dials to adjust, no interchangeable trip units. That simplifies ordering and panel wiring but means you must size the breaker to the load current exactly; there's no headroom to turn it up later. The 15000 latching endurance cycles is typical for a molded case breaker in distribution duty — not a frequent-switching device like a contactor. If your application needs remote tripping or status monitoring beyond the aux contacts, you'll need to add external components. The breaker itself is a clean, passive overcurrent protector.","metaTitle":"Siemens 3VA1020-3ED36-0AH0 SENTRON MCCB, 20 A, 3-Pole, 75.6","metaDescription":"Siemens SENTRON 3VA1020-3ED36-0AH0 molded case circuit breaker, 20 A rated continuous current, 3-pole, 75.6 kA at 240 V. Current lifecycle status. Sourced to order against an 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","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":"Yes","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":"No","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"2 auxiliary switches + 1 trip alarm switch 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":"without auxiliaryrelease","Ground fault monitoring version":"Without","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":"3","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","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=391672&mlfb=3VA1020-3ED36-0AH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1020-3ED36-0AH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1020-3ED36-0AH0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the closest functional second-source for 3VA1020-3ED36-0AH0?","answer":"The closest functional peer is 3VA1020-3ED36-0AA0 — same frame, same 20 A rating, same TM210 release, same 3-pole configuration. The difference is in the auxiliary contact count: the -0AH0 carries 2 aux switches plus a trip alarm, while the -0AA0 carries a different aux configuration. Panel footprint and wiring are identical."},{"question":"Will 3VA1020-3ED36-0AH0 drop into a panel specified around 3VA1020-3ED36-0AA0 without rewiring?","answer":"Yes — same physical dimensions (130 mm x 76.2 mm x 70 mm), same mounting pattern, same bus bar spacing. The terminal layout is identical. The only difference is the auxiliary contact wiring, which may require a different terminal assignment on the control wiring."},{"question":"What compliance documentation is available for 3VA1020-3ED36-0AH0?","answer":"As a Siemens SENTRON product, it carries UL, CSA, and IEC certifications standard for the 3VA series. RoHS and REACH declarations are available from Siemens documentation. Specific cert numbers are on the nameplate."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1020-3ED36-0AH0","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/3VA1020-3ED36-0AH0 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}}