{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-6EF42-0AC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-6EF42-0AC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-6EF42-0AC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-6EF42-0AC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1220-6EF42-0AC0, molded case circuit breaker, 4-pole, TM240 thermal-magnetic release, 200 A at 40 °C, 220 kA interrupting at 240 V.","salesMarkdown":"Its 4-pole design handles three-phase plus neutral switching, common in North American and IEC distribution panels where full isolation is required. Interrupting capacity is the headline here: 220 kA at 240 V AC, 154 kA at 415 V, 75.6 kA at 440 V, 30 kA at 500 V, and 17 kA at 690 V. That SCCR ladder means it can sit upstream of a transformer or in a high-fault industrial service entrance without cascading failure — the breaker clears before the fault energy damages downstream gear. Power loss maxes at 42 W — relevant for enclosed panel thermal calculations, especially when grouping multiple breakers. ## Thermal derating and ambient Above that it derates: 194 A at 55 °C, 188 A at 60 °C, 182 A at 65 °C, 176 A at 70 °C. ## Auxiliary switching and options The basic switch order code is 3VA12206EF420AA0 if you need to reference the switching mechanism separately.","metaTitle":"Siemens 3VA1220-6EF42-0AC0 SENTRON MCCB, 200 A, 4-Pole, 220","metaDescription":"Siemens 3VA1220-6EF42-0AC0 SENTRON molded case circuit breaker, 200 A at 40 °C, 4-pole, TM240 release, 220 kA at 240 V. Current lifecycle. Sourced to order. Request 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":"140 mm","Height":"158 mm","Maximum":"0 A","Minimum":"0 A","at 240 V":"220 kA","at 415 V":"154 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":"No","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":"3VA12206EF420AA0","Design Of The Auxiliary Switch":"2 auxiliary switches 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":"3VA9988-0AA12","Switching Capacity Class Of The Circuit Breaker":"H","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=568455&mlfb=3VA1220-6EF42-0AC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-6EF42-0AC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1220-6EF42-0AC0 and how do I get a price?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Submit a request for quote; availability and current pricing are confirmed at quote time."},{"question":"What is the interrupting capacity of 3VA1220-6EF42-0AC0 at 240 V?","answer":"220 kA at 240 V AC — sufficient for high-fault service-entrance or transformer-secondary applications where available fault current exceeds typical 65 kA or 100 kA MCCB ratings."},{"question":"What does the TM240 release designation mean?","answer":"TM240 is a thermal-magnetic overcurrent release rated 200 A continuous at 40 °C. The '240' refers to the release frame size; actual trip settings are fixed within the breaker, not adjustable."},{"question":"Will 3VA1220-6EF42-0AC0 drop into a panel specified around 3VA1110-5ED36-0AC0 without rewiring?","answer":"Both are 4-pole SENTRON 3VA breakers with the same 70 mm depth and 158 mm height, so the mounting footprint and bus-bar centers match. Width differs — 140 mm on this 200 A frame versus the narrower 3VA1110 frame — so check bus-bar span and adjacent device spacing before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1220-6EF42-0AC0","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/3VA1220-6EF42-0AC0 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}}