DM 45K 8001-D Bosch Rexroth Indramat
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The Bosch Rexroth Indramat DM 45K 8001-D is a servo drive in the DM Servo Drives series with a mass of 6.7 kilograms and an analog interface. This drive features an IP20 protection rating, operates at a maximum switching frequency of 8 kHz, and supports a rated current of 16.5 Arms at this frequency. Its power demand is 1.4 A at 24 V and it can operate in temperatures between 0 and 45 degrees Celsius.
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Product Description:
The DM 45K 8001-D is a servo drive module produced by Bosch Rexroth Indramat within the DM Servo Drives series. It supplies regulated three-phase power to synchronous or induction servo motors in industrial automation lines, providing current control and torque command in closed-loop motion axes. As part of a modular cabinet system, the unit connects to higher-level motion controllers through an analog reference channel and delivers dynamic motor control for packaging, material handling, and assembly equipment that require precise speed and position regulation.
The drive’s power stage is clocked at 8 kHz, a switching frequency that balances ripple reduction and thermal stress on the IGBTs. Under this carrier rate, the continuous phase output is 16.5 Arms, allowing the module to energize medium-frame servomotors while staying within its safe junction temperature. For acceleration bursts, it can supply up to 35 Arms, and operation above the 45 °C nominal ambient requires a current derating of 0.5 A/K as heat sink temperature rises. Internal losses reach 205 W at peak loading, so enclosure airflow must remove this heat to prevent protective shutdown. The specified operating range extends from 0 °C to +45 °C, and output capability can be sustained to +55 °C only when the stated derating curve is followed.
The front frame is only 75 mm wide and the module weighs 6.7 kg, making it suitable for compact cabinet installation. It draws 1.4 A from the 24 V control bus for logic circuits and cooling fans, adding only a small load to the auxiliary supply. The housing carries an IP20 rating, so it is intended for use inside closed panels while still allowing heat dissipation in cabinet layouts. Storage remains permissible between −25 °C and +70 °C, and the analog interface provides straightforward speed command scaling for legacy controllers.
