PSI65C0.765-W1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat PSI65C0.765-W1 is a medium frequency inverter from the PSI Frequency Inverters series. It features a water cooled design, supports 400 to 480 VAC mains voltage at 50 or 60 Hz, and has an IP20 degree of protection. The integrated power supply unit delivers a maximum output current of 2 Amps at 24 VDC, and the inverter weighs approximately 25 kilograms.
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Product Description:
The PSI65C0.765-W1 is a medium-frequency inverter built by Bosch Rexroth Indramat as part of the PSI Frequency Inverters series. It converts three-phase mains power into a controlled medium-frequency output used to drive induction heating coils and similar loads in automated manufacturing cells. An integrated Ethernet timer enables synchronization with cell controllers, and the unit meets the 3K3 climatic category of EN 60721-3-3 for installation inside standard control cabinets. At 25 kg, the inverter can be supported within a control cabinet designed for its cooling and electrical connections.
The PSI65C0.765-W1 connects to industrial power grids rated at 400 – 480 VAC, allowing operation across the supported voltage range without step-up transformers. A line frequency of 50 or 60 Hz is accepted, allowing connection to common industrial utility supplies. An auxiliary supply section delivers 24 VDC control power at a maximum of 2 A, energizing contactors and field I/O without an external power module. The inverter has an IP20 protection rating, so it must be installed inside an enclosure that prevents accidental contact with live parts. These electrical limits affect cabinet clearances, branch-circuit protection, and the required cable cross sections for safe operation.
Thermal management relies on water-cooled plates that remove up to 420 W of internal losses, minimizing the need for airflow inside the cabinet. Continuous duty is permitted at ambient temperatures from +10 to +55 °C; outside this range, the inverter derates or shuts down to protect its semiconductor junctions. For storage and transport, the nonoperating inverter can withstand temperatures from −25 to +70 °C. The cooling circuit must provide sufficient flow through the plates to carry the internal heat away from the inverter during operation.
