{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-5EF42-0AF0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-5EF42-0AF0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-5EF42-0AF0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-5EF42-0AF0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON series, molded case circuit breaker, order code 3VA1220-5EF42-0AF0, 200 A rated current, 4-pole, 187 kA breaking capacity at 240 V, TM240 overcurrent release.","salesMarkdown":"At 40 °C it handles 200 A continuous without derating; that figure holds through 50 °C, then steps down to 194 A at 55 °C, 188 A at 60 °C, 182 A at 65 °C, and 176 A at 70 °C. The breaking capacity is what makes this part stand out in a distribution panel: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, 30 kA at 500 V, and 17 kA at 690 V. The 70 mm depth and 140 mm width fit a standard SENTRON draw-out or fixed-mount chassis, so it drops into an existing 3VA lineup without reworking the bus bars. The auxiliary switch configuration — 1 auxiliary + 1 trip alarm switch HQ — gives you one NO/NC for status feedback and a separate alarm contact that closes only on a trip event, not on manual switching. That's a clean way to signal a fault to a PLC without ladder logic to distinguish a manual off from a protective trip. Mounts in a standard SENTRON draw-out cradle or fixed-mount base. The 140 mm width occupies four 35 mm DIN spaces if using the DIN-rail adapter; verify the specific mounting kit for your panel.","metaTitle":"Siemens 3VA1220-5EF42-0AF0 SENTRON MCCB, 200 A, 4-Pole, 187","metaDescription":"Siemens SENTRON 3VA1220-5EF42-0AF0 molded case circuit breaker, 200 A rated, 4-pole, 187 kA breaking at 240 V. Current lifecycle stage. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"140 mm","Height":"158 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":"30 kA","at 690 V":"17 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]":"5.51 in","Height [In]":"6.22 in","Trip Indicator":"Yes","Number Of Poles":"4","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":"42 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA12205EF420AA0","Design Of The Auxiliary Switch":"1 auxiliary switch + 1 trip alarm switch HQ","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","design of the N-conductor protection":"without","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"600 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":"3VA9988-0AB12","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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=568580&mlfb=3VA1220-5EF42-0AF0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-5EF42-0AF0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1220-5EF42-0AF0 at 415 V?","answer":"121 kA at 415 V. At 240 V it is 187 kA, at 440 V it is 75.6 kA, at 500 V it is 30 kA, and at 690 V it is 17 kA."},{"question":"What is the rated current of this MCCB at different ambient temperatures?","answer":"200 A from 40 °C through 50 °C, then 194 A at 55 °C, 188 A at 60 °C, 182 A at 65 °C, and 176 A at 70 °C."},{"question":"What auxiliary switches does 3VA1220-5EF42-0AF0 include?","answer":"One auxiliary switch and one trip alarm switch, HQ design. The auxiliary provides status feedback; the trip alarm closes only on a protective trip event."},{"question":"Where can I buy 3VA1220-5EF42-0AF0?","answer":"This part is sourced and quoted to order through independent industrial automation distribution. Submit an RFQ for current availability and pricing — confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1220-5EF42-0AF0","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/3VA1220-5EF42-0AF0 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}}