PSI64C0.752-W1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat PSI64C0.752-W1 is a medium frequency inverter from the PSI Frequency Inverters series, weighing approximately 25 kilograms and featuring water cooling. It supports a mains voltage of 400 to 480 VAC and operates at a frequency of 50 or 60 Hz. The inverter has an IP20 protection rating and operates within a temperature range of 10 to 55 degrees Celsius.
Internal Product Review
The PSI64C0.752-W1 is a medium frequency inverter with water-cooled thermal management that supports efficient heat control in continuous service. Operation from 400 to 480 VAC at 50 or 60 Hz makes the inverter a strong fit for standard industrial power systems.
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Product Description:
The PSI64C0.752-W1 belongs to the PSI Frequency Inverters series produced by Bosch Rexroth Indramat. Classified as a medium-frequency inverter, it converts fixed three-phase utility power into a regulated output suitable for induction heating generators, hardening systems, and other industrial processes that require precise medium-frequency energy. The unit integrates an internal 24 V auxiliary supply and fieldbus timing so that drive controllers or PLCs can activate and monitor the inverter without additional hardware.
This model uses water cooling; a plate heat exchanger carries coolant through the housing, removing semiconductor losses without exposing the cabinet to hot exhaust air. Installation inside control enclosures is simplified by the IP20 protection rating, which shields live parts from fingers and tools while relying on the host panel for dust sealing. The integrated power supply provides up to 2 A at 24 VDC, providing enough current for contactors, sensors, or a small HMI. The power stage accepts a mains frequency of 50 or 60 Hz within a three-phase input range of 400–480 VAC, allowing use in European or North American plants without a transformer. These electrical limits establish compatibility with standard low-voltage switchgear and affect reactor sizing and fuse selection.
Heat dissipation into the coolant peaks at 420 W, which must be considered when selecting the flow rate and radiator capacity for the water circuit. Continuous operation is permitted at ambient temperatures from +10 to +55 °C, and the unit may be stored or shipped at temperatures from -25 to +70 °C without damage to electrolytic capacitors or plastic components. The inverter is categorized as climatic class 3K3 under EN 60721-3-3, indicating the moderate humidity and dust exposure typical of assembly halls. Its approximate weight of 25 kg must be considered when selecting the backplate and mounting hardware. The built-in Ethernet timer supports time-synchronized triggering of medium-frequency outputs during batch cycles.
