PSI65C0.179-W1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat PSI65C0.179-W1 is a medium frequency inverter from the PSI Frequency Inverters series and weighs approximately 25 kilograms. It features water cooling, a protection rating of IP20, and operates with a mains voltage of 400 to 480 VAC at 50 or 60 Hz. The integrated power supply unit delivers up to 2 Amps at 24 VDC output.
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Product Description:
The PSI65C0.179-W1 belongs to the PSI Frequency Inverters series manufactured by Bosch Rexroth Indramat. As a medium-frequency inverter, it converts a fixed three-phase supply into a controlled output for induction heaters, high-frequency welders, and similar equipment that requires precise energy delivery in the kilohertz range. The device is intended for cabinet installation, where it interfaces with plant controllers and uses water-based heat removal to support continuous operation. Its controlled output allows connected equipment to receive power at the frequency and level required by the process.
The inverter uses a water-cooled circuit that carries thermal energy away from the power semiconductors, allowing the unit to sustain its rated output in warm enclosures. Its enclosure provides an IP20 degree of protection, which guards against accidental contact with hazardous internal parts but does not protect against water ingress. The unit must therefore be installed inside a suitable control cabinet that provides the necessary protection from moisture and airborne contamination. The input section accepts a mains supply of 400–480 VAC and operates with grids at 50/60 Hz. A galvanically isolated auxiliary converter inside the housing provides a regulated 24 V DC rail for the control electronics, sensors, and external timer circuit. This auxiliary rail can supply up to 2 A for connected field wiring, reducing the need for an additional control power source. The climatic category is 3K3 under EN 60721-3-3, making the inverter suitable for clean, temperature-controlled production areas with moderate humidity.
During operation, the assembly remains functional within an ambient temperature range of +10 to +55 °C. Storage and transportation are permitted within a temperature range of -25 to +70 °C, provided that condensation is prevented when the unit is moved between environments. A maximum heat loss of 420 W must be removed by the water loop to keep the power semiconductors within safe operating temperatures. Adequate coolant flow and suitable inlet temperatures are necessary for effective heat transfer during continuous duty. The inverter weighs 25 kg, so appropriate lifting equipment and secure mounting hardware should be used during installation. Its cabinet location must also provide sufficient structural support for the unit and allow access to the electrical and cooling connections.
