PSI64C0.757-W1 Bosch Rexroth Indramat
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MPN: R911174565
The Bosch Rexroth Indramat PSI64C0.757-W1 is a medium frequency inverter from the PSI Frequency Inverters series with a weight of approximately 25 kg and water cooling method. It offers a mains voltage range of 400 to 480 VAC and operates at a frequency of either 50 or 60 Hz. The device provides an integrated power supply unit that outputs 24 VDC at up to 2 A and has IP20 protection.
Internal Product Review
The PSI64C0.757-W1 is a medium frequency inverter with water-cooled operation that suits heat-sensitive industrial installations. A 400-480 VAC mains range and 50/60 Hz compatibility support flexible integration across standard power systems. The integrated 24 VDC power supply rated at 2 A adds practical control support and highlights a well-engineered inverter package.
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Product Description:
The PSI64C0.757-W1 medium-frequency inverter is produced by Bosch Rexroth Indramat as part of the PSI Frequency Inverters series. Designed for installation inside automation cabinets, the device converts plant mains power into a regulated medium-frequency supply that drives electrically heated equipment and variable-speed machinery in automated production lines. A single enclosure contains the power conversion components and control interfaces, simplifying integration when cabinet space is limited. This arrangement also keeps the primary electrical connections and control functions within one compact unit.
The inverter uses a water-cooled heat sink that transfers process heat directly to a plant chiller, so enclosure airflow is not required for cooling the power stage. The housing carries an IP20 rating, which provides protection against finger contact but requires installation inside a closed panel. The input supports 400–480 VAC three-phase networks operating at 50 or 60 Hz, allowing the same model to work with either utility frequency. During full-load operation, the power stage produces up to 420 W of heat loss. The water circuit must remove this heat to keep the semiconductor junctions within safe operating limits. Appropriate coolant flow and temperature control are therefore necessary for stable operation.
The inverter has a climatic classification of 3K3, indicating suitability for production halls with low dust, moderate humidity, and no condensation. An internal power supply provides a 24 VDC control voltage with an output of up to 2 A for sensors, contactors, or an optional Ethernet timer interface. The timer interface can synchronize frequency changes with machine cycles. Continuous operation is permitted within an ambient temperature range of +10 to +55 °C. The unit can be stored at temperatures as low as -25 °C and transported at temperatures up to +70 °C when it is not operating. Its approximate mass of 25 kg should be considered when selecting cabinet supports and planning safe handling procedures.
