{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1120-5ED32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1120-5ED32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1120-5ED32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1120-5ED32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1120-5ED32-0AA0, molded case circuit breaker, 3-pole, 20 A, TM210 release, 187 kA at 240 V, IP40 front.","salesMarkdown":"The Siemens 3VA1120-5ED32-0AA0 is a 3-pole SENTRON molded case circuit breaker (MCCB) rated 20 A continuous at 40 °C through 55 °C — no derate needed in a warm enclosure unless ambient climbs above 55 °C, where it drops to 19 A at 70 °C. That thermal-magnetic TM210 release handles overloads and short-circuits without an external trip unit. The interrupting rating hits 187 kA at 240 V AC, falling to 121 kA at 415 V and 75.6 kA at 440 V — still high enough for most distribution panel fault levels. At 500 V and 690 V it holds 17 kA, so it's usable on 480/277 V or 600 V systems where available fault current stays under that threshold. The IP40 front protection keeps dust and tools out of the mechanism; the rest of the breaker is open to the enclosure, so the panel itself must maintain the required IP rating. ## Mounting and integration — fits the standard footprint The breaker measures 70 mm deep, 76.2 mm wide, and 130 mm high — a standard 3-pole MCCB footprint that drops into existing SENTRON or comparable panel cutouts without panel rework. The TM210 release is fixed, so no separate trip-unit wiring or configuration is needed.","metaTitle":"Siemens 3VA1120-5ED32-0AA0 SENTRON MCCB, 3-Pole, 20 A, 187 k","metaDescription":"Siemens 3VA1120-5ED32-0AA0 SENTRON molded case circuit breaker, 3-pole, 20 A rated, 187 kA interrupting at 240 V. TM210 release. Active production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","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":"187 kA","at 415 V":"121 kA","at 440 V":"75.6 kA","at 500 V":"17 kA","at 690 V":"17 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":"No","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","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":"Yes","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"M","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":"https://cdn.aoctrl.com/5b9353e9638457513c4b0b8da3285108.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=333486&mlfb=3VA1120-5ED32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1120-5ED32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting rating of 3VA1120-5ED32-0AA0 at different voltages?","answer":"At 240 V it interrupts 187 kA; at 415 V, 121 kA; at 440 V, 75.6 kA; at 500 V and 690 V, 17 kA. These ratings allow it to clear high-fault-current faults in low-voltage distribution."},{"question":"What is the current rating of 3VA1120-5ED32-0AA0 at elevated ambient temperatures?","answer":"Rated 20 A continuous from 40 °C to 55 °C. At 60 °C and 65 °C it derates to 19 A, and at 70 °C it remains 19 A. No derate needed below 55 °C."},{"question":"Where can I buy 3VA1120-5ED32-0AA0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm offer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1120-5ED32-0AA0","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/3VA1120-5ED32-0AA0 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}}