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R911200468 (RD51.1-4B-075-L-C1-FW)

RD 500 Drive Controllers

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1 Year Warranty Included
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The Bosch Rexroth R911200468 (RD51.1-4B-075-L-C1-FW) is a universal drive controller designed for industrial control systems, supporting 380–480 V AC three-phase input. At a 4 kHz switching frequency, it provides 75 kW motor output and up to 176 A for 60 seconds, with 89 kVA output capability; at 8 kHz, it produces 55 kW output, with 129 A peak and 65 kVA output. The unit integrates a brake chopper rated at 45 kW continuous and 148 kW peak for one second. It includes an RZC01.1-XN connector and 24 V standby power. Required airflow for cooling is at least 0.4 m³/s, intended for operation from 0 to 40°C. The device is size class D, IP20 certified, for vertical mounting in control cabinets, and weighs approximately 52 kg. Only qualified personnel should perform installation and maintenance. Firmware is supplied separately.

Technical Specifications

Controller type
Universal drive controller

Votage Input
380 to 480 Volts AC (Three-phase)

Motor output (at 4kHz)
75 kilowatts

Output Frequency (at 4kHz)
0 to 250 Hertz

Rated Current (at 4kHz)
135 Amps

Peak Current for 60 sec (at 4kHz)
176 Amps

Rated Output (at 4kHz)
89 kVA

Motor output (at 8kHz)
55 kilowatts

Output Frequency (at 8kHz)
0 to 500 Hertz

Rated Current (at 8kHz)
99 Amps

Peak Current for 60 sec (at 8kHz)
129 Amps

Rated Output (at 8kHz)
65 kVA

Brake chopper Continuous Power
45 kilowatts

Brake chopper Peak Power for 1 sec
148 kilowatts

Brake Chopper Resistance
Minimum 4.4 Ohms

Additional Features
24 Volts standby power, Connection for RZC01.1-XN

Cooling type
Forced air cooling

Air Flow Rate
Minimum 0.4 m3/s

Ambient temperature range
0 to 40 degrees Celsius

Size Class
D

Housing
IP20 category according to EN 60529

Mounting
Vertical

Weight
52 kilograms

Firmware
Ordered separately

Shipping
Global.

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Warranty
1-year-warranty
Indramat USA 1 Year Warranty
Repair
product repair We offer a repair service for the RD51.1-4B-075-L-C1-FW.
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