{"product_id":"fuji-electric-bu90-4c","title":"Fuji Electric BU90-4C","description":"\u003cp\u003eThe Fuji Electric BU90-4C is an external dynamic braking unit (DBU) for the FRENIC-MEGA (G1) variable frequency drive (VFD). For drives above built-in braking transistor capacity, this unit manages regenerative energy from the motor to an external braking resistor, enabling controlled deceleration of large, high-inertia loads.\u003c\/p\u003e\u003cp\u003eMonitors the DC bus voltage and activates the braking resistor circuit when voltage rises above a safe threshold — during rapid deceleration or when the load overhauling the motor.\u003c\/p\u003e\u003cp\u003eRequired for large cranes, hoists, winders, and high-inertia fans. Must be paired with a compatible external braking resistor. Genuine Fuji Electric OEM accessory.\u003c\/p\u003e","brand":"Fuji Electric","offers":[{"title":"Default Title","offer_id":48128210731244,"sku":"BU90-4C","price":1368.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0217\/1112\/6600\/files\/MEGA_04_9e92a529-f0de-4496-a93c-0efce041794a.jpg?v=1786028030","url":"https:\/\/www.industrialautomationco.com\/en-gb\/products\/fuji-electric-bu90-4c","provider":"Industrial Automation Co.","version":"1.0","type":"link"}