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R911200731 (RD51.1-4N-005-L-DF-FW)

RD 500 Drive Controllers

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1 Year Warranty Included
Free Ground Shipping

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The Bosch Rexroth R911200731 (RD51.1-4N-005-L-DF-FW) is an industrial drive converter designed for three-phase 5 kW motors, supporting AC 380 to 480 V (±10%) input. The unit features a speed control ratio of 1:20, frequency precision of 0.01%, and 2% speed accuracy. Construction details include aluminum-Elko DC link capacitors, line filters, and insulated cables for noise reduction. The converter contains a PROFIBUS-DP interface, supports external 24 V standby power, and uses U/f curve control. It is rated for operation in 0-40°C ambient temperature and 85-90% humidity, with an IP20 protection class. Forced air cooling is implemented for units ≥110 kW, though this unit has 5 kW rated output. A spacing of 100 mm above and below the unit is recommended. Factory-assigned firmware is included; no built-in brake chopper is present.

Technical Specifications

Speed Control Ratio
1:20

Speed Accuracy
2%

Frequency Precision
0.01%

Operator Panel
Detachable

Voltage Adjustment
Adjusted with Frequency

Noise Reduction
Line Filters and Insulated Cables

Operating Temperature
0 to +40 degrees Celsius

DC Link Capacitors
Aluminum-Elko

Capacitor Storage Time (No Voltage)
Up to 2 years at +40 degrees Celsius

Cooling System
Blower Unit

Communication Interface
PROFIBUS-DP

Electric Motor Compatibility
Three-phase 5.5 kW

Peak Current
26 A for 0.5 seconds

Protection Rating
IP20

Optimal Humidity
85-90%

Weight
15 kg

Space Requirement
100 mm at Top and Bottom

Global Shipping
Yes

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Warranty
1-year-warranty
Indramat USA 1 Year Warranty
Repair
We offer a repair service for the RD51.1-4N-005-L-DF-FW.
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