Product Description

The Bosch RD52.1-4B-315-F-NN-NN-NN-FW is a three-phase drive system for synchronous and induction motors. It comes with a modular architecture which allows for adaption to customer requirements. The drive is rated for three-phase input at 380 to 480 Volts AC. At 4 kilohertz pulse frequency, the specifications for the drive include 315 kilowatts rated motor output, 0 to 150 Hertz output frequency, 540 Amps rated current, 702 Amps peak current for 60 seconds and 918 Amps peak current for 1 second, 355 kVA rated output and 462 kVA peak output for 60 seconds. At 8 kilohertz pulse frequency, the specifications for the drive include 200 kilowatts rated motor output, 0 to 250 Hertz output frequency, 400 Amps rated current, 520 Amps peak current for 60 seconds and 680 Amps peak current for 1 second, 263 kVA rated output and 342 kVA peak output for 60 seconds.

The RD52.1-4B-315-F-NN-NN-NN-FW is designed for forced air cooling with integrated liquid circulation. Environmental class of the drive is 3K3 as per DIN IEC 721-3-3. The recommended ambient operating temperature range is 0 to 40 degrees Celsius. The drive can be operated at up to 50 degrees Celsius but with power reduction at 2.5% per K. Cooling air requirement of the drive is 0.8 m³ per second. The rated power loss during operation is 9.5 kilowatts at 8 kilohertz pulse frequency and 11.8 kilowatts at 4 kilohertz pulse frequency. Enclosure of the RD52.1-4B-315-F-NN-NN-NN-FW has IP 20 protection rating. The approximate weight of the drive is 358 kilograms. The RD52.1-4B-315-F-NN-NN-NN-FW includes a converter with built-in brake chopper. All converters on the RD series are equipped with a mains filter. Firmware needs to be ordered separately for the drive. This product can be shipped globally with a one year warranty period from Wake Industrial.