{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-4EF32-0KC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-4EF32-0KC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-4EF32-0KC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-4EF32-0KC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1220-4EF32-0KC0 molded case circuit breaker, 3-pole, 200 A rated current, line protection design, breaking capacity 121 kA at 240 V, 75.6 kA at 415 V.","salesMarkdown":"Rated 200 A continuous at 40 °C through 50 °C, it derates to 176 A at 70 °C, so the ambient temperature of the enclosure directly governs the usable current — a panel hitting 55 °C drops the rating to 194 A. Breaking capacity is voltage-dependent: 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, 17 kA at 500 V, and 11.9 kA at 690 V. ## Deployment context and auxiliary options No undervoltage release and no ground-fault monitoring are included, so if those functions are required they must be added externally or specified on a different variant. Dimensions: 105 mm wide, 158 mm high, 70 mm deep — standard 3-pole MCCB footprint for panel mounting. Maximum power loss is 42 W — factor this into enclosure thermal calculations.","metaTitle":"SENTRON 3VA1220-4EF32-0KC0 MCCB, 200 A, 3-Pole, Line Protect","metaDescription":"SENTRON 3VA1220-4EF32-0KC0 molded case circuit breaker, 200 A rated current (40-50°C), breaking capacity 121 kA 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":"105 mm","Height":"158 mm","Maximum":"0 A","Minimum":"0 A","at 240 V":"121 kA","at 415 V":"75.6 kA","at 440 V":"52.5 kA","at 500 V":"17 kA","at 690 V":"11.9 kA","at 40 °C":"200 A","at 45 °C":"200 A","at 50 °C":"200 A","at 55 °C":"194 A","at 60 °C":"188 A","at 65 °C":"182 A","at 70 °C":"176 A","Depth [In]":"2.76 in","Width [In]":"4.13 in","Height [In]":"6.22 in","Trip Indicator":"No","Number Of Poles":"3","Voltage Trigger":"Yes","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":"42 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA12204EF320AA0","Design Of The Auxiliary Switch":"2 auxiliary switches HQ","Design Of The Auxiliary Release":"shunt trip (STL)","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"TM240","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","Of The Integrated Auxiliary Trip Unit":"3VA9688-0BL33","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":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching Capacity Class Of The Circuit Breaker":"S","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=568396&mlfb=3VA1220-4EF32-0KC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-4EF32-0KC0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1220-4EF32-0KC0 at 415 V?","answer":"The breaking capacity is 75.6 kA at 415 V. It also carries 121 kA at 240 V, 52.5 kA at 440 V, 17 kA at 500 V, and 11.9 kA at 690 V."},{"question":"What does the 200 A rating mean at higher ambient temperatures?","answer":"The 200 A rating holds from 40 °C to 50 °C. Above that it derates: 194 A at 55 °C, 188 A at 60 °C, 182 A at 65 °C, and 176 A at 70 °C. Enclosure temperature directly governs usable current."},{"question":"Where can I buy 3VA1220-4EF32-0KC0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1220-4EF32-0KC0","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/3VA1220-4EF32-0KC0 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}}