Product Description

The Bosch RD42.1-4R-026-L is a power supply which is designed for use with inverters with DC connection that belong to the REFUdrive 500 series of products. Its nominal power rating is 26 kilowatts. The main connecting voltage range for the RD42.1-4R-026-L is 380 to 480 Volts AC (three-phase). The power supply does not include a brake chopper. It is designed by Bosch and is part of the RD42 family of power supplies. The fuse rating recommended by Bosch for use with the supply is 63 Amps. The DC link voltage is 530 to 640 Volts DC with 10% variation. The DC rated current is 50 Amps. The peak DC current for 60 seconds is 75 Amps. At 400 volts AC input the rated output of the RD42.1-4R-026-L is 26 kilowatts and the peak output for 60 seconds is 40 kilowatts. At 480 Volts AC input the rated output is 32 kilowatts and the peak output for 60 seconds is 48 kilowatts.

The line supply rated current at the rated line supply power is 45 Amps. The approximate power factor of the line supply is 1. The losses at the rated output are 0.8 kilowatts. The RD42.1-4R-026-L supply is designed for forced air cooling and requires a minimum of 0.08 m³/s of airflow for proper cooling. Environmental class of the RD42.1-4R-026-L is 3K3 according to DIN IEC 721-3-3. The radio interference suppression level of the supply is A1 according to EN 55011 / EN 61800-3. The size class of the RD42.1-4R-026-L supply is D. The degree of protection offered by the supply housing, according to EN 60529, is IP20. Only trained personnel should use and maintain the RD42.1-4R-026-L supply. This product can be shipped globally with a one year warranty period from Wake Industrial.