{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-4EF42-0AD0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-4EF42-0AD0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-4EF42-0AD0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-4EF42-0AD0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1220-4EF42-0AD0, molded case circuit breaker, 4-pole, TM240 thermal-magnetic overcurrent release, 200 A at 40 °C, line protection design.","salesMarkdown":"The 3VA1220-4EF42-0AD0: Rated uninterrupted current holds at 200 A from 40 °C through 50 °C ambient, then derates linearly to 176 A at 70 °C — the full thermal curve is on record for panel builders sizing for elevated enclosure temperatures. Interrupting capacity is voltage-dependent: 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. These are the values that govern SCCR coordination downstream — the 415 V figure is the one most often checked for European 400 V distribution panels. ## Sizing and selectivity notes Maximum power loss is 42 W — a figure to include in enclosure thermal calculations if the breaker is enclosed with other heat sources. No undervoltage release, ground-fault monitoring, or communication function is fitted on this variant — those are separate accessory additions if the application requires them. The storage low-end matters for unheated warehouses in cold climates — the breaker can sit at -40 °C without damage as long as it is not energized until warmed within the operating band.","metaTitle":"Siemens 3VA1220-4EF42-0AD0 SENTRON MCCB, 200 A, 4-Pole, TM24","metaDescription":"Siemens SENTRON 3VA1220-4EF42-0AD0 molded case circuit breaker, 200 A at 40 °C, 4-pole, TM240 thermal-magnetic release. Interrupting rating 121 kA at 240 V. Active production. Quot","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":"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":"3VA12204EF420AA0","Design Of The Auxiliary Switch":"3 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":"3","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=568400&mlfb=3VA1220-4EF42-0AD0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-4EF42-0AD0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1220-4EF42-0AD0","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/3VA1220-4EF42-0AD0 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}}