RD42.1-5R-084-L Bosch Rexroth Indramat
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MPN: R911200177
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The Bosch Rexroth Indramat RD42.1-5R-084-L is a drive controller from the RD 500 Drive Controllers series. It has a rated output of 105 kW at 500 V and a line rated current of 150 Amps. The unit features forced air cooling, IP20 protection, and operates on a supply frequency of 50 or 60 Hz.
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Product Description:
The RD42.1-5R-084-L is a drive controller from Bosch Rexroth Indramat in the RD 500 Drive Controllers series. As a converter for three-phase AC supplies, this unit forms the central power stage between a plant's mains and its synchronous or induction motors, providing regulated DC-bus energy for speed and torque control in automated production lines and other heavy industrial systems. It operates on 500 V utility networks and belongs to size class F, making it suitable for high-power applications such as extruders, presses, and conveyor systems that require sustained motor output.
This generation 1 design establishes a DC link voltage of 660 V DC within a ±10 percent tolerance, giving the drive the overhead required for dynamic motor acceleration. A continuous bus current of 160 A corresponds to a nominal DC-bus power of 84 kW, so the unit can feed multiple axes from a common supply. Thermal management relies on forced-air cooling, and the fans push 0.2 m³/s of airflow through the heat sink to evacuate the 1.5 kW of conduction and switching losses recorded at rated load. Protection is provided by an FF fuse rated at 200 A on the input side, while the housing carries an IP20 degree of protection for cabinet-mounted operation. Because the design is supplied without a brake chopper, regenerated energy is sent back to the mains, improving efficiency under overhauling loads.
At nominal supply, the controller delivers a continuous shaft-side power of 105 kW while drawing 150 A from the line. For short intervals of up to sixty seconds, output can rise to 160 kW with a corresponding DC peak current of 240 A, allowing the unit to cover acceleration or overload situations without derating. The input bridge is designed for 50 or 60 hertz grids, a versatility summarized by the 50/60 Hz frequency rating, and it operates from standard industrial three-phase sources within the series voltage range.
Frequently Asked Questions about RD42.1-5R-084-L:
Q: What cooling method is used in the RD42.1-5R-084-L drive controller?
A: The RD42.1-5R-084-L features forced air cooling to manage its internal temperature during operation.
Q: What is the rated output capacity of the RD42.1-5R-084-L at 500 V?
A: This unit delivers 105 kW of rated output when supplied with 500 V.
Q: What is the peak current rating of the RD42.1-5R-084-L drive controller?
A: The peak current output for up to 60 seconds is 240 A.
Q: What degree of protection does the RD42.1-5R-084-L provide?
A: The RD42.1-5R-084-L is designed with IP20 degree of protection.
Q: What is the DC link voltage specification for the RD42.1-5R-084-L?
A: This drive controller operates within a DC link voltage of 660 V DC ±10%.
