PSI63C0.759-W1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat PSI63C0.759-W1 is a medium frequency inverter from the PSI Frequency Inverters series, featuring a water-cooled design and IP20 protection. It operates at a mains voltage of 400 to 480 VAC with a frequency of 50 or 60 Hz and has an integrated power supply unit providing 24 VDC at up to 2 amps. The unit weighs approximately 25 kilograms and has cooling losses up to 420 watts.
Internal Product Review
The PSI63C0.759-W1 is a medium frequency inverter with 400–480 VAC mains input. Water cooling and IP20 protection make the unit well suited for controlled cabinet installations where thermal management matters. A 24 VDC integrated power supply rated at 2 A adds practical system support and rounds out a capable inverter platform.
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Product Description:
The PSI63C0.759-W1 is a medium-frequency inverter produced by Bosch Rexroth Indramat within the PSI Frequency Inverters series. It converts fixed mains power into a controlled medium-frequency output for induction heating generators, hardening systems, or high-speed spindle drives in automated production lines. Integrated sequencing and communication allow the unit to serve as a central energy source in applications that require precise current and frequency control while maintaining a moderate cabinet footprint. Its operating range supports processes that rely on stable power delivery and coordinated control.
The inverter accepts a three-phase supply of 400–480 VAC, and a selectable mains frequency of 50 or 60 Hz supports use with different utility grids. An internal auxiliary converter provides 24 VDC control power at up to 2 A, eliminating the need for a separate supply for connected contactors and sensors. The enclosure is rated at IP20, providing protection against accidental finger contact but no protection against moisture, which makes the unit suitable for installation inside a cabinet. Heat generated by the switching devices is removed through a water-cooled heat exchanger, which helps stabilize component temperatures during sustained operation.
Under full excitation, the cooling circuit must dissipate 420 W of heat, which should be considered when sizing the facility chiller. The unit meets the 3K3 climatic category of EN 60721-3-3 and can tolerate moderate humidity and dust in standard production areas. Continuous operation is permitted from +10 to +55 °C, while storage or transportation is permitted from −25 to +70 °C under noncondensing conditions. Sequence control is coordinated through an EtherNet timer interface that synchronizes operation with higher-level PLCs. The housing weighs 25 kg, which helps limit the structural load placed on the cabinet mounting surface.
