{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1020-3ED32-0AH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1020-3ED32-0AH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1020-3ED32-0AH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1020-3ED32-0AH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1020-3ED32-0AH0, molded case circuit breaker, 3-pole, 20 A, TM210 thermal-magnetic release, line protection, 75.6 kA interrupting at 240 V.","salesMarkdown":"The Siemens 3VA1020-3ED32-0AH0 is a SENTRON molded case circuit breaker (MCCB) sized for line protection — 3 poles, 20 A continuous at 40 °C, with a TM210 thermal-magnetic release that gives fixed thermal and magnetic trip points. The 20 A rating holds flat through 50 °C; above that it derates to 19.2 A at 55 °C, 18.8 A at 60 °C, 18.4 A at 65 °C, and 18 A at 70 °C, so in a warm cabinet you lose about 2 A off the nameplate. Interrupting capacity runs 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at 690 V — that 75.6 kA at 240 V means it handles a serious bolted fault on a 240 V distribution bus without the arc flashing upstream. The 3VA1020-3ED32-0AH0 measures 76.2 mm wide, 130 mm tall, and 70 mm deep — that's a standard 3-pole MCCB footprint for a 20 A frame. Mechanical endurance is rated at 15,000 operations — that's the latching mechanism life, not the electrical contact wear, so it's fine for a distribution board that sees occasional switching, not a motor-starting duty cycle.","metaTitle":"Siemens 3VA1020-3ED32-0AH0 SENTRON MCCB, 20 A, 3-Pole, 75.6","metaDescription":"Siemens 3VA1020-3ED32-0AH0 SENTRON molded case circuit breaker, 20 A rated, 3-pole, TM210 release, interrupting 75.6 kA at 240 V. Current lifecycle. 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":"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":"lug terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"17 x 6.5","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"12 x 0"}},"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=474837&mlfb=3VA1020-3ED32-0AH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1020-3ED32-0AH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1020-3ED32-0AH0?","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 3VA1020-3ED32-0AH0?","answer":"The 3VA1020-3ED36-0AA0 is a sibling in the same 3VA1020 frame — same 20 A continuous rating and 3-pole count, but it carries a different overcurrent release design (ED36 vs. ED32) and a different auxiliary contact configuration. The physical footprint (76.2 mm wide, 130 mm tall, 70 mm deep) is identical, so it drops into the same panel cutout and wiring layout without rewiring. The key difference is the release curve and accessory set, so verify the protection coordination matches your application before substituting."},{"question":"What compliance documentation does Siemens provide for 3VA1020-3ED32-0AH0?","answer":"Siemens SENTRON MCCBs typically carry UL 489, CSA C22.2 No. 5, and IEC 60947-2 certifications, plus RoHS and REACH declarations. The specific documentation set for this order code should be requested at quote time to confirm the exact declarations and certificates applicable to the shipped variant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1020-3ED32-0AH0","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/3VA1020-3ED32-0AH0 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}}