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R911203701 (RD52.1-5B-030-L-LV-FW)

RD 500 Drive Controllers

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The Bosch R911203701 (RD52.1-5B-030-L-LV-FW) is a drive system designed for motor control, featuring forced air cooling, a built-in brake chopper, and a 3 x AC 500 V nominal connecting voltage. Output power is rated at 30 kW, with a pulse frequency of 4 or 8 kHz corresponding to output frequency ranges of 0–250 Hz and 0–500 Hz respectively. The unit is classified as a Converter with an IP20 housing in environment class 3K3, and supports ambient temperatures from 0 to 40°C. Power loss is rated at 1.1 kW. The integrated brake chopper offers 19 kW rated and 74 kW peak power. Installation should be performed by qualified personnel.

Technical Specifications

Cooling Method
Forced Air Cooling

Input Rating
500 Volts AC (three-phase)

Output Power Rating
30 Kilowatts

Rated Motor Output (4kHz)
30 Kilowatts

Output Frequency (4kHz)
0 to 250 Hertz

Continuous Current (4kHz)
45 Amps

Peak Current Rating (4kHz for 60/1/0.5 seconds)
59 / 77 / 90 Amps

Continuous Output (4kHz)
37 kVa

Peak Output (4KHz for 60 seconds)
49 kVa

Rated Motor Output (8kHz)
22 Kilowatts

Output Frequency (8kHz)
0 to 500 Hertz

Continuous Current (8kHz)
34 Amps

Peak Current Rating (8kHz for 60/1/0.5 seconds)
44 / 58 / 68 Amps

Continuous Output (8kHz)
28 kVa

Peak Output (8kHz or 60 seconds)
36 kVa

Environment Class
3K3

Rated Power Loss
1.1 Kilowatts

Operating Temperature Range
0 to 40 Degrees Celsius

Recommended Airflow
0.1 Cubic Meters per Second

Size Class
C

Protection Class
IP 20

Weight
36 Kilograms

Brake Chopper Rated Power
19 Kilowatts

Brake Chopper Peak Power
74 Kilowatts

Brake Chopper Resistance
8.8 Ohms

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Warranty
1-year-warranty
Indramat USA 1 Year Warranty
Repair
product repair We offer a repair service for the RD52.1-5B-030-L-LV-FW.
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