The R911200687 (RD51.1-4B-037-L-D1-FW) is a universal drive controller from Bosch Rexroth’s REFUDrive RD50 series. The firmware, which needs to be purchased separately, supports various features. It operates on 380 to 480 Volts AC and yields a nominal output of 37 kilowatts at a 4kHz pulse frequency. While it can also work on 200 to 230 Volts AC, this will result in output derating. At 8kHz pulse frequency, the controller generates 30 kilowatts of power. Its additional features include 24 Volts standby power and the ability to connect an RZC01.1-XT with a NAMUR terminal strip to enhance the drive functionality. It requires forced ventilation, and operates efficiently between 0-40 degrees Celsius and at up to 90% non-condensing relative humidity. The drive, weighing 36kg, comes with a one-year warranty and can be shipped worldwide. It should be installed and operated by trained technical personnel.
Product Line: REFUDrive RD50 Family Rated Converter Input: 380 to 480 Volts AC Optional Converter Input: 200 to 230 Volts AC with output derating Nominal Output with Rated Input and 4kHz: 37 kW Output Current at 4kHz: 82 Amps Rated Apparent Power Output at 4kHz: 54 kVA Output Power at 8kHz: 30 kW Output Current at 8kHz: 56 Amps Rated Apparent Power Output at 8kHz: 37 kVA Brake Chopper Continuous Power Rating: 23 kW Brake Chopper Peak Power Rating: 93 kW Cooling Method: Forced air cooling Cooling Requirement: 0.2 m3/s air flow Weight: 36 kilograms Housing Rating: IP20 (cabinet mount) Qualified Operators: Properly trained and qualified technical personnel Global Shipping: Available
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