{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-5FF42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-5FF42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-5FF42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-5FF42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1220-5FF42-0AA0, molded case circuit breaker, 4-pole, 200 A continuous, TM240 thermal-magnetic release, breaking capacity 187 kA at 240 V AC.","salesMarkdown":"It carries a continuous current rating of 200 A at 40 °C, and holds that full rating through 50 °C — above that it derates linearly to 176 A at 70 °C, so in a hot enclosure you size for the ambient, not the nameplate. The TM240 thermal-magnetic release provides fixed thermal protection for overloads and magnetic pickup for short-circuits — no electronic adjustments, which means it's a fit-and-forget part once the continuous current matches your load. Breaking capacity is the headline: 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. The 70 mm depth, 140 mm width, and 158 mm height fit standard SENTRON 3VA panel footprints. Mounts in a standard distribution panel on a mounting plate or DIN-rail adapter (the 3VA range uses a common backplate pattern). The 4-pole form factor means it occupies the same width as four single-pole breakers in a row — plan your gland plate and busbar takeoff accordingly. No undervoltage release, no shunt trip, no communication function on this variant — it's a straight thermal-magnetic protector with no auxiliary electronics to wire.","metaTitle":"Siemens 3VA1220-5FF42-0AA0 SENTRON MCCB, 200 A, 4-Pole, 187","metaDescription":"Siemens 3VA1220-5FF42-0AA0 SENTRON molded case circuit breaker, 200 A continuous, 4-pole, breaking capacity 187 kA at 240 V. Active production. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"140 mm","Height":"158 mm","Maximum":"2 000 A","Minimum":"1 000 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":"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","Ground-Fault Monitoring Version":"Without","Continuous Current / Rated Value":"200 A","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":"50%","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","Continuous Current / Rated Value / Maximum":"250 A","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"0","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":"https://cdn.aoctrl.com/346b40a2f2f2c8723a986d5a6cb69d54.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=141219&mlfb=3VA1220-5FF42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-5FF42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this MCCB at different voltages?","answer":"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. The 415 V figure (121 kA) is the one most often used for IEC distribution panels."},{"question":"What is the continuous current rating at elevated ambient temperatures?","answer":"Rated 200 A continuous from 40 °C through 50 °C. Above that it derates: 194 A at 55 °C, 188 A at 60 °C, 182 A at 65 °C, and 176 A at 70 °C. In a hot enclosure, size based on the actual ambient, not the 40 °C nameplate."},{"question":"Where can I buy 3VA1220-5FF42-0AA0 and how is it quoted?","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."},{"question":"What are the physical dimensions of this breaker?","answer":"Depth is 70 mm, width is 140 mm, height is 158 mm. The 4-pole width (140 mm) matches the standard SENTRON 3VA 4-pole footprint."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1220-5FF42-0AA0","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/3VA1220-5FF42-0AA0 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}}