{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-5EF42-0AJ0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-5EF42-0AJ0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-5EF42-0AJ0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-5EF42-0AJ0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON molded case circuit breaker, 3VA1220-5EF42-0AJ0, 4-pole, TM240 release, 200 A at 40 °C, 187 kA breaking at 240 V, line protection design.","salesMarkdown":"The Siemens 3VA1220-5EF42-0AJ0 is a SENTRON molded case circuit breaker (MCCB) with a TM240 thermal-magnetic release, rated 200 A continuous at 40 °C. That 200 A holds flat through 50 °C, then derates linearly to 176 A at 70 °C — the maximum operating ambient. For a 200 A bus or feeder on a 4-pole line, this breaker carries full load without headroom loss up to 50 °C; above that, the derating curve governs the continuous current the breaker can pass without nuisance tripping. Breaking capacity is voltage-dependent, as expected for an MCCB. At 240 V AC, the 3VA1220-5EF42-0AJ0 interrupts 187 kA; at 415 V, 121 kA; at 440 V, 75.6 kA; at 500 V, 30 kA; and at 690 V, 17 kA. For a 480 V panel (common in North American industrial distribution), the 30 kA at 500 V is the relevant number — enough for most service-entrance and feeder applications where the available fault current is under 30 kA. Dimensions: 70 mm deep, 140 mm wide, 158 mm tall. The 140 mm width is standard for a 4-pole SENTRON 3VA frame; it occupies four 35 mm DIN-rail modules. Panel cutout and mounting pattern match the 3VA platform — no adapter plate needed for a standard Siemens switchboard or distribution panel. ## Auxiliary switch complement Factory-fitted with two auxiliary switches and one trip-alarm switch (HP type). This covers status feedback for the breaker's open/closed position and a separate signal for trip events — enough for a standard remote monitoring or interlocking scheme without an external accessory module.","metaTitle":"Siemens 3VA1220-5EF42-0AJ0 SENTRON MCCB, 200 A, 4-Pole, 187","metaDescription":"Siemens 3VA1220-5EF42-0AJ0 SENTRON molded case circuit breaker, 200 A rated at 40 °C, 4 poles, breaking capacity 187 kA at 240 V AC. Active production. Quoted 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":"2 auxiliary switches + 1 trip alarm switch HP","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":"3","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB11","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=568583&mlfb=3VA1220-5EF42-0AJ0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-5EF42-0AJ0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of 3VA1220-5EF42-0AJ0?","answer":"Rated 200 A continuous at 40 °C, 4 poles, TM240 thermal-magnetic release. Breaking capacity is 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. Insulation voltage rated 800 V."},{"question":"Where can I buy 3VA1220-5EF42-0AJ0 and how is it quoted?","answer":"Sourced through independent distribution channels; quoted to order against an RFQ. Availability and current pricing are confirmed at quote time."},{"question":"Will 3VA1220-5EF42-0AJ0 fit in a panel designed for 3VA1110-5ED36-0AC0?","answer":"Both are SENTRON 3VA platform breakers, but the 3VA1220 is a 4-pole 200 A frame versus the 3VA1110 which is a 3-pole lower-current frame. The 140 mm width of the 4-pole unit is wider than a 3-pole 3VA1110; verify panel cutout width and busbar spacing before substitution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1220-5EF42-0AJ0","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/3VA1220-5EF42-0AJ0 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}}