Available. The Indramat RD51.2-4B-005-L-A1-FW is a frequency controller from the RD 500 series, engineered for precise control of synchronous and asynchronous motors in industrial automation applications. Designed to operate with a three-phase AC input voltage of 380 to 480 V (±10%), it delivers a rated output power of 5.5 kW, with a continuous brake chopper power of 2.8 kW and a peak power of 18 kW. The controller utilizes U/f curve control for efficient motor operation and incorporates a built-in brake chopper for dynamic braking capabilities. It features forced air cooling to maintain optimal operating temperatures and is housed in an IP20-rated enclosure, necessitating installation within a control cabinet. The device operates effectively within an ambient temperature range of 0 to 40 degrees Celsius. This model is suitable for applications requiring precise motor control and reliable braking performance.