HCS04.2E-W0520 Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
The Bosch Rexroth Indramat HCS04.2E-W0520 is part of the HCS IndraDrive Controllers series and is classified as an HCS Drive Controller. It features an internal brake chopper and operates with a control voltage of 24 V DC. The unit weighs 110 kg and uses air cooling through an integrated blower, supporting a cooling air volume of 800 cubic meters per hour for IP23 and 200 cubic meters per hour for IP54.
Internal Product Review
The HCS04.2E-W0520 is an HCS drive controller with internal air cooling through an integrated blower, well suited for demanding cabinet-based drive systems. A 24 V DC control voltage and 120 kW permanent braking power support stable integration and confident energy handling in motion applications. An internal brake chopper paired with 240 kW maximum brake power makes the unit a strong choice for dynamic drive control.
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Product Description:
The HCS04.2E-W0520 is a drive controller produced by Bosch Rexroth Indramat as part of the HCS IndraDrive Controllers series. It serves as the power processing element between the facility mains and synchronous or induction motors in automated machinery. The controller provides regulated DC bus energy, supports regenerative braking, and coordinates motion commands for multi-axis systems. It is intended for centralized drive systems that need controlled power flow between the supply section and several motor axes.
This unit uses a control circuit of 24 V DC, allowing the logic and interface electronics to remain active even when the main supply is disconnected. Inside the housing, an integrated brake chopper works with a 10.4 mF capacitor bank on the DC link to stabilize voltage during load transients. Continuous braking demands can be met with 120 kW of permanent dissipation, while short spikes up to 240 kW for 10 seconds absorb excess regenerative energy. The IGBT bridge switches at a nominal frequency of 4 kHz, which establishes the carrier for current regulation and torque response. This arrangement helps the control section remain available for status exchange and controlled shutdown behavior when main power is removed. The power section operates in an infeeding configuration, so surplus energy returns to the common DC bus instead of being lost only as heat.
Fault currents up to 50 kA can be cleared without enclosure failure, and structural integrity is verified for shocks of 4 g over 11 ms. A dedicated blower moves 800 m3/h in IP23 installations and 200 m3/h in IP54 installations, and both airflow paths require an 8 dm² inlet and outlet area. Clear intake and exhaust openings are required so the internal blower can remove heat from the power electronics. Overall dimensions are 950 mm high, 430 mm wide, and 380 mm deep, while the assembly mass is 110 kg, so the mounting structure must support that load. Sound pressure at full cooling speed is limited to 72 dB(A). The air-cooling layout supports rear-panel cabinet mounting without an external chiller.
