{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-4EF42-0AG0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-4EF42-0AG0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-4EF42-0AG0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-4EF42-0AG0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1220-4EF42-0AG0, molded case circuit breaker, 4-pole, 200 A rated continuous current (Iu), TM240 thermal-magnetic overcurrent release, interrupting ratings 121 kA at 240 V / 75.6 kA at 415 V / 25 kA at 440 V / 11.9 kA at 690 V, IP40 front, 1 auxiliary + 1 trip alarm switch.","salesMarkdown":"## MCCB for line protection — 200 A, 4-pole, TM240 release The Siemens SENTRON 3VA1220-4EF42-0AG0 is a 4-pole molded case circuit breaker rated for 200 A continuous current (Iu) at 40 °C, with a TM240 thermal-magnetic overcurrent release. Interrupting ratings span 121 kA at 240 V, 75.6 kA at 415 V, 25 kA at 440 V, and 11.9 kA at 690 V — covering most industrial low-voltage fault scenarios without needing an upstream current-limiting fuse. Front protection is IP40, suitable for enclosed panel mounting. ## Thermal derating and endurance Rated continuous current holds at 200 A from 40 °C through 50 °C, then derates linearly to 176 A at 70 °C. For panels with elevated ambient temperatures, the 55 °C rating of 194 A and 60 °C rating of 188 A give clear headroom for sizing. Mechanical latching endurance is rated at 15,000 operations — typical for a fixed-mounted MCCB in a distribution board where switching cycles are infrequent.","metaTitle":"Siemens 3VA1220-4EF42-0AG0 SENTRON MCCB, 200 A, 4-Pole, 121","metaDescription":"Siemens SENTRON 3VA1220-4EF42-0AG0 molded case circuit breaker, 200 A continuous, 4-pole, TM240 release. Interrupting 121 kA at 240 V. 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","at 240 V":"121 kA","at 415 V":"75.6 kA","at 440 V":"25 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","Trip indicator":"Yes","Number of poles":"4","Product version":"Line protection","Voltage trigger":"No","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"No","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"1 auxiliary switch + 1 trip alarm switch HP","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"200 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"without auxiliaryrelease","Ground fault monitoring version":"Without","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","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"1","Adjustable response value time / tr min.":"1","Max. rated operational voltage Ue with DC":"600 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"200 A","Adjustable response value current / li max.":"2 000 A","Adjustable response value current / li min.":"1 000 A","Adjustable response value current / lr min.":"140 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"2","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB11","Switching capacity class of the circuit breaker":"S","Max. rated operational current of the frame size":"250 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"lug terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"25 x 8","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"13 x 1"}},"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=568403&mlfb=3VA1220-4EF42-0AG0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-4EF42-0AG0/alternatives.json"},"ai":{"faq":[{"question":"Who supplies 3VA1220-4EF42-0AG0 and how is it quoted for volume purchases?","answer":"This part is sourced through independent distribution channels and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time."},{"question":"What is 3VA1220-4EF42-0AG0's interrupting capacity at 240 V?","answer":"121 kA at 240 V, with additional ratings of 75.6 kA at 415 V, 25 kA at 440 V, and 11.9 kA at 690 V."},{"question":"What compliance documentation does this brand provide for 3VA1220-4EF42-0AG0?","answer":"As a Siemens SENTRON product, it carries the standard IEC/UL certifications for molded case circuit breakers. Specific documentation (RoHS, REACH, UL, IEC) is available upon request with the RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1220-4EF42-0AG0","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/3VA1220-4EF42-0AG0 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}}