{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1020-4ED36-0AH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1020-4ED36-0AH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1020-4ED36-0AH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1020-4ED36-0AH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1020-4ED36-0AH0, Molded case circuit breaker, 3-pole, 20 A, 121 kA at 240 V, TM210 release, IP40 front.","salesMarkdown":"## Siemens SENTRON 3VA1020-4ED36-0AH0 — 20 A MCCB with TM210 Release The interrupting capacity hits 121 kA at 240 V and 75.6 kA at 415 V — numbers that tell you this breaker handles high-fault-current scenarios without cascading upstream. The TM210 thermal-magnetic release is fixed, so there's no dial to adjust the trip curve; what you see on the nameplate is what you get in the panel. Thermal derating is flat from 40 °C through 50 °C at 20 A, then drops to 19.2 A at 55 °C and 18 A at 70 °C. ## Integration — Panel Fit and Auxiliary Wiring The 3VA1020-4ED36-0AH0 measures 76.2 mm wide, 130 mm tall, and 70 mm deep — a standard 3-pole MCCB footprint that drops into most SENTRON distribution panels without re-drilling the mounting plate. Wire it as a standalone line protector, not as a remote-controlled or communicating device.","metaTitle":"Siemens 3VA1020-4ED36-0AH0 SENTRON MCCB, 20 A, 3-Pole, 121 k","metaDescription":"Siemens SENTRON 3VA1020-4ED36-0AH0 molded case circuit breaker, 20 A, 3-pole, 121 kA at 240 V. Current lifecycle stage. Quoted 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","at 240 V":"121 kA","at 415 V":"75.6 kA","at 440 V":"52.5 kA","at 690 V":"11.9 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":"S","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=233096&mlfb=3VA1020-4ED36-0AH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1020-4ED36-0AH0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of this MCCB at different voltages?","answer":"At 240 V it interrupts 121 kA; at 415 V it interrupts 75.6 kA; at 440 V it interrupts 52.5 kA; and at 690 V it interrupts 11.9 kA. These are the rated short-circuit breaking capacities per the spec."},{"question":"Where can I buy the 3VA1020-4ED36-0AH0 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — send the RFQ to get a firm commercial response."},{"question":"What are the physical dimensions of the 3VA1020-4ED36-0AH0?","answer":"Width is 76.2 mm, height is 130 mm, and depth is 70 mm. The front face is rated IP40."},{"question":"Does the 3VA1020-4ED36-0AH0 include auxiliary contacts?","answer":"Yes, it ships with 2 auxiliary switches plus 1 trip alarm switch (HQ type), giving you both status and alarm signaling back to the control system."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1020-4ED36-0AH0","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/3VA1020-4ED36-0AH0 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}}