PSI63C0.333-L2 Bosch Rexroth Indramat
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MPN: R911174607
The Bosch Rexroth Indramat PSI63C0.333-L2 is a medium frequency inverter from the PSI Frequency Inverters series. It operates with an input voltage of 480 to 690 VAC at 50 or 60 Hz and provides a 24 VDC output at up to 2 A from its integrated power supply unit. The unit is air cooled, rated IP20, and weighs approximately 21 kilograms.
Internal Product Review
The PSI63C0.333-L2 is a medium frequency inverter with air-cooled construction that feels well suited for steady industrial duty. Support for 480 to 690 VAC mains voltage and 50 or 60 Hz input gives the inverter strong flexibility in plant power systems. An integrated 24 VDC power supply rated at up to 2 A adds useful control-side capability and makes this inverter a very capable package.
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Product Description:
The PSI63C0.333-L2 is a drive component manufactured by Bosch Rexroth Indramat and supplied within the PSI Frequency Inverters series. As a frequency inverter, it converts fixed mains power into a regulated medium-frequency output for induction heating, welding generators, or other automation loads that require controllable high-frequency energy. By modulating voltage and frequency, the unit gives control systems precise authority over output power while isolating the motor or coil from direct line exposure.
The electrical interface accommodates a three-phase supply from 480 to 690 VAC, allowing deployment on high-voltage plant distribution networks. It synchronizes automatically with line cycles at 50 or 60 Hz, so the same model can be installed in regions using either grid standard. An onboard auxiliary supply delivers 24 VDC logic power at a maximum current of 2 A, removing the need for an external control transformer inside the cabinet. Because its internal switching stages dissipate up to 360 W of heat, the inverter relies on an air-cooled design that channels airflow through dedicated ducts. Field wiring and diagnostic connections use the INTERBUS timer interface. The unit operates as a medium-frequency inverter for resonant load applications.
The enclosure has an IP20 protection rating, so it must be mounted inside a protected electrical cabinet to prevent direct contact with liquids and excessive dust. The climatic category is 3K3 according to EN 60721-3-3, which covers indoor areas with moderate humidity and minimal corrosive contamination. During operation, the unit tolerates ambient temperatures from +10 to +55 °C, while storage or transportation is permitted from -25 °C to +70 °C. The inverter has a mass of 21 kg, which should be considered when selecting panel supports and handling equipment. Adequate cabinet clearance must be maintained around the airflow passages so that heat can leave the enclosure without obstruction.
