{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-4EF42-0KC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-4EF42-0KC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-4EF42-0KC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-4EF42-0KC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1220-4EF42-0KC0, molded case circuit breaker, 4-pole, 200 A at 50 °C, breaking capacity 121 kA at 240 V, line protection design with shunt trip release.","salesMarkdown":"## MCCB for 200 A line protection — 4-pole, high breaking capacity ## Breaking capacity across voltage — where it fits The interrupting rating drops as system voltage rises: 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. For a 480 V panel in North America, the 52.5 kA figure at 440 V is the closest published point — expect similar performance at 480 V. This SCCR range covers most industrial switchboards and motor control centers; verify coordination with upstream protective devices. ## Shunt trip and auxiliary switches included Width 140 mm, height 158 mm, depth 70 mm. The 70 mm depth keeps it within typical 200 mm deep enclosures, leaving room for wiring and busbars behind the breaker.","metaTitle":"3VA1220-4EF42-0KC0 SENTRON MCCB, 200 A, 4-Pole, 70 mm Depth","metaDescription":"Siemens SENTRON 3VA1220-4EF42-0KC0 molded case circuit breaker, 200 A at 50 °C, 4-pole, breaking capacity 121 kA at 240 V. Current lifecycle status. Available 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":"140 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]":"5.51 in","Height [In]":"6.22 in","Trip Indicator":"No","Number Of Poles":"4","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":"3VA12204EF420AA0","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","design of the N-conductor protection":"without","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":"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":"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=568422&mlfb=3VA1220-4EF42-0KC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-4EF42-0KC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1220-4EF42-0KC0 and how do I get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a request for quote (RFQ) to get current pricing and availability — no stock or price figures are published here."},{"question":"What is the breaking capacity of this MCCB at 240 V?","answer":"It is rated for 121 kA at 240 V, which covers high-fault applications like transformer secondaries."},{"question":"What auxiliary releases are fitted on this variant?","answer":"It includes a shunt trip release (STL) for remote tripping and 2 auxiliary switches (HQ type) for status feedback. No undervoltage release or ground-fault monitoring is fitted."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1220-4EF42-0KC0","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/3VA1220-4EF42-0KC0 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}}