Available. The Bosch Rexroth RD51.1-4N-007-L-DF-FW is a frequency controller from the RD 500 series, designed for precise speed and torque control in industrial automation applications. Operating on a three-phase AC supply of 380–480 V (±10%), it delivers a rated power of 7 kW and employs U/f curve control methodology. The controller features forced air cooling suitable for systems with a total power requirement of 110 kW or more. Additional functions include connections for RZC01.1-XT, NAMUR terminal strips, and 24 V standby power. It utilizes rapid-switching semiconductors and conforms to EN 55011 noise standards. The modular hardware and software design allows for flexible integration into various automation systems. This model does not include a built-in brake chopper, making it suitable for applications where external braking solutions are preferred.