HCS04.2E-W0790-N-04-DNNN Bosch Rexroth Indramat
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MPN: R911332789
The Bosch Rexroth Indramat HCS04.2E-W0790-N-04-DNNN is part of the HCS IndraDrive Controllers series. This drive controller has a rated input current of 527 Amps and an output current of 586 Amps. It weighs 140 kilograms and uses internal air cooling through an integrated blower, with cooling air volumes of 1200 m3/h for IP23 and 330 m3/h for IP54 enclosures.
Internal Product Review
The HCS04.2E-W0790-N-04-DNNN is a Bosch Rexroth Indramat HCS drive controller with internal air cooling through an integrated blower. A rated input current of 527 A and output current of 586 A give the unit impressive capacity for demanding drive applications. The 42000 A rms short-circuit current rating is a strong advantage for high-power installations.
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Product Description:
The HCS04.2E-W0790-N-04-DNNN is an HCS drive controller manufactured by Bosch Rexroth Indramat and supplied within the HCS IndraDrive Controllers series. It functions as the power-conversion and axis-control element between the facility's three-phase mains and the motion system, delivering regulated DC bus energy for coordinated motor operation in industrial automation. This role allows the controller to support demanding servo applications where stable power delivery and precise response are required across multiple connected axes.
This controller draws a rated input of 527 A and can furnish up to 586 A to the attached drives, so upstream protection devices must be selected for high-current service. A short-circuit withstand rating of 42000 A rms permits installation on feeders with high fault capacity, and the logic circuits plus the integrated blower require only 72 W of control power. Semiconductor losses appear as 600 W / 770 W inside the housing, while up to 5290 W / 7100 W is expelled through the external heat sink; the total thermal burden across operating points is 5430 W / 7250 W for p1 and p2. The unit works with either an infeeding power supply section or a line-fed power supply section, allowing energy regeneration or conventional rectifier operation without hardware changes.
Airflow management is handled by an internal blower: under IP23 mounting the fan moves 1200 m³/h, whereas the sealed IP54 configuration needs only 330 m³/h. The enclosure should provide at least 10 dm² of inlet and outlet area to maintain this airflow, and the assembly weighs 140 kg, so lifting equipment must be rated for that load. Power conductors terminate on lugs sized for 2 × 185 mm², while the DC bus uses an M12 stud tightened to 41 Nm and the brake link uses an M10 stud tightened to 24 Nm. No communication interface is specified, so fieldbus selection is handled through optional modules when network integration is required.
