{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-4EF42-0DH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-4EF42-0DH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-4EF42-0DH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-4EF42-0DH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1220-4EF42-0DH0, molded case circuit breaker, 4-pole, 200 A at 40 °C, 121 kA breaking capacity at 240 V AC, line protection design with undervoltage release.","salesMarkdown":"## What this 200A 4-pole MCCB carries The Siemens 3VA1220-4EF42-0DH0 is a SENTRON molded case circuit breaker (MCCB) rated for line protection — 200 A continuous at 40 °C, 4-pole, with a 121 kA interrupting capacity at 240 V AC. That 121 kA at 240 V means it can safely clear a fault current up to that level without welding contacts or cascading failure upstream; at 415 V the rating drops to 75.6 kA, and at 690 V to 11.9 kA, which is typical for this class of breaker. At 55 °C it steps to 194 A, at 60 °C to 188 A, and at 70 °C to 176 A. That 176 A at the top of the operating range (-25 to 70 °C ambient) is still enough for most 160 A feeder circuits, but if your panel runs hot, check the 70 °C column before sizing.","metaTitle":"Siemens 3VA1220-4EF42-0DH0 SENTRON MCCB, 200A 4-Pole, 121kA","metaDescription":"Siemens 3VA1220-4EF42-0DH0 SENTRON molded case circuit breaker, 200A at 40°C, 4-pole, 121kA breaking at 240V. Active production, quoted on request.","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":"Yes","Number Of Poles":"4","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"Yes","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"44.5 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 + 1 trip alarm switch HQ","Design Of The Auxiliary Release":"undervoltage release (UVR)","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":"3VA9608-0BB25","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":"3VA9988-0AB12","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=568414&mlfb=3VA1220-4EF42-0DH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-4EF42-0DH0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for this MCCB?","answer":"200 A continuous at 40 °C, 4-pole, with a 121 kA interrupting capacity at 240 V AC. The insulation voltage is rated 800 V. It includes an undervoltage release and 2 auxiliary switches plus 1 trip alarm switch."},{"question":"Where can I buy 3VA1220-4EF42-0DH0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1220-4EF42-0DH0","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/3VA1220-4EF42-0DH0 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}}