Product Description

The Bosch Rexroth RD51.1-4B-055-L-VY-FW is a universal three-phase drive system. Bosch has designed it motor control applications. The drive modules can be purchased independently or as a completely wired system. Forced cooling can be used as the drive power section is designed for cooling at the rear. High power RD51 drives with liquid cooling or external heat exchanger are also available. The RD51.1-4B-055-L-VY-FW cools via forced air cooling. The cooling airflow requirement is 0.4 cubic meters per second. If the cooling airflow rated is lower than this recommended rate, then the drive will not get proper ventilation and the ambient temperature will not remain within the recommended range which is 0 to 40 degrees Celsius. If this happens, then the internal drive temperature could reach critical levels that could cause drive components to fail.

The converter on the RD51.1-4B-055-L-VY-FW requires three-phase 380 to 480 Volts AC input. The converter includes an integrated brake chopper. Brake choppers are used in DC voltage intermediate circuits for frequency converters to control the voltage when the load feeds energy back into the intermediate circuit. The continuous power of the brake chopper is 33 kilowatts and the peak power is 130 kilowatt. At 4 kilohertz, the rated motor output of the RD51.1-4B-055-L-VY-FW is 55 kilowatts, the rated current is 99 Amps and the peak current is 129 Amps for 60 seconds. At 8 kilohertz, the rated motor output of the RD51.1-4B-055-L-VY-FW is 45 kilowatts, the rated current is 82 Amps and the peak current is 107 Amps for 60 seconds. The firmware for the RD51.1-4B-055-L-VY-FW is ordered as a separate subposition. The weight of the RD51.1-4B-055-L-VY-FW is 52 kilograms. This product can be shipped globally with a one year warranty period from Wake Industrial.