{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"VW3A7211","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"VW3A7211","canonicalUrl":"https://aoctrl.com/schneider/VW3A7211","factsUrl":"https://aoctrl.com/api/mcp/products/VW3A7211","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric VW3A7211 network braking unit, 250 kW, 400 V, IP20, 97% efficiency, 937 x 380 x 395 mm.","salesMarkdown":"## What this braking unit delivers — and what it cannot The VW3A7211 is a network braking unit rated for 250 kW peak braking power at 400 V supply, with a permanent braking power of 135 kW that defines the continuous dissipation ceiling in a deceleration duty cycle. At 97 % efficiency and unity power factor (cos phi = 1), the unit converts nearly all the regenerated energy to heat in the external resistor bank — the 3 % loss is the internal switching and control overhead. ## Lifecycle status — obsolete, sourced through surplus channels Available through independent distribution against an RFQ; quantities and pricing confirmed at quote time. No pin-compatible direct replacement exists in the current Altivar accessory range — a system-level review of the braking resistor bank and control wiring is needed if substituting. The IP20 enclosure (937 mm high, 380 mm wide, 395 mm deep) is sized for floor-mounting in a drive cabinet — the height demands a tall enclosure section, and the 395 mm depth must clear the backplane wiring duct. Operating altitude derating applies above 1000 m: 5 % current reduction per additional 1000 m, which directly reduces the achievable braking torque at high-altitude installations. ## Overload and protection coordination Overload protection is set at 1.2 times the maximum current — the unit can sustain 120 % of its rated braking current momentarily before the thermal model trips the IGBT gate drive. The associated fuse rating is 500 A at 1000 V — this is the upstream short-circuit protection for the DC bus connection, not the braking resistor branch. The resistor branch requires its own overcurrent device sized to the resistor cold resistance.","metaTitle":"Schneider Electric VW3A7211 Network Braking Unit, 250 kW","metaDescription":"Schneider Electric VW3A7211 network braking unit, 250 kW at 400 V, 97% efficiency. Obsolete — sourced to order against RFQ through independent distribution.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Motor Control Accessories"],"specifications":{"Depth":"395 mm","Width":"380 mm","Height":"937 mm","Cos phi":"1","Efficiency":"97 %","lifecycle_stage":"mature","Operating altitude":"1000...4000 m with current derating 5 % per 1000 m","Overload protection":"1.2 x maximum current","Maximum braking power":"250 kW","Supply voltage limits":"380...415 V","Associated fuse rating":"500 A at 1000 V","IP degree of protection":"IP20","Permanent braking power":"135 kW","[Us] rated supply voltage":"400 V","Ambient air temperature for storage":"-25...55 °C"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://www.se.com/vn/en/product/VW3A7211/network-braking-unit-250-kw-400-v-for-variable-speed-drive/","alternativesUrl":"https://aoctrl.com/api/mcp/products/VW3A7211/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy VW3A7211 and get a price?","answer":"Submit a request with your target quantity and delivery window; current market pricing and lot availability are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/VW3A7211","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/schneider/VW3A7211 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}}