PSI62C0.779-W1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat PSI62C0.779-W1 is a medium frequency inverter from the PSI Frequency Inverters series with a water-cooled design and IP20 protection. It supports mains voltages from 400 to 480 VAC at 50 or 60 Hz and has an integrated power supply unit with a maximum output current of 2 Amps at 24 VDC. The inverter weighs approximately 25 kilograms and can operate from 10 to 55 degrees Celsius.
Internal Product Review
The PSI62C0.779-W1 is a medium frequency inverter built for reliable integration in demanding motion systems. Water-cooled construction and 400 to 480 VAC mains input support efficient operation across standard industrial power networks. IP20 protection gives the unit a practical cabinet-ready profile for controlled environments.
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Product Description:
The PSI62C0.779-W1 belongs to the PSI Frequency Inverters series manufactured by Bosch Rexroth Indramat. Classified as a medium-frequency inverter, it converts factory mains power into a controllable high-frequency output that drives induction heaters, specialized power supplies, and other automation loads requiring precise energy delivery. The unit integrates into cabinet assemblies where liquid cooling circuits are already present, allowing it to be mounted close to the process without requiring large air ducts.
The enclosure carries a protection rating of IP20, so it must be installed inside a switchgear cabinet to prevent accidental contact with internal components. Its input section accepts 400–480 VAC three-phase power and operates on grids with a frequency of 50 or 60 Hz, eliminating the need for dedicated frequency conversion equipment. A water-cooled heat sink transfers thermal energy directly to the plant coolant loop. The inverter dissipates up to 420 W of heat, which must be included when determining the required cooling capacity. The input power, heat dissipation, and coolant requirements must be considered when selecting supply feeders, protective devices, and fluid lines.
An integrated auxiliary supply delivers 24 VDC at up to 2 A, allowing contactors, sensors, or gate-drive electronics to operate without an external DIN-rail converter. The operating temperature range is +10 to +55 °C, which is suitable for typical control-room conditions. Storage is permitted between -25 °C and +70 °C, supporting storage in facilities without continuous climate control. Environmental classification 3K3 under EN 60721-3-3 indicates suitability for indoor industrial areas that remain free of condensation. A built-in Ethernet-based timer interface synchronizes the inverter with supervisory controllers for coordinated cycle starts. At 25 kg, the unit requires a secure shelf or panel bracket that can support its weight and withstand vibration during continuous industrial service.
