PSI61C0.201-L1 Bosch Rexroth Indramat
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MPN: R911174468
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The Bosch Rexroth Indramat PSI61C0.201-L1 is a medium frequency inverter from the PSI Frequency Inverters series. It operates with a mains voltage of 400 to 480 VAC and a frequency of 50 or 60 Hz, using air cooling and an IP20 protection degree. The integrated power supply delivers up to 2 Amps at 24 VDC and the unit weighs approximately 20 kilograms.
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Product Description:
The PSI61C0.201-L1 is a medium-frequency inverter produced by Bosch Rexroth Indramat for the PSI Frequency Inverters series. The unit converts three-phase mains power into a controllable medium-frequency output for induction heaters, shrink-fit stations, and other process coils in automated production lines. This conversion allows the connected equipment to regulate delivered energy according to the requirements of each operating cycle. An integrated PROFIBUS timer interface allows the inverter to synchronize with PLC sequences for energy-on-demand operation and exchange timing commands with the control system.
The housing has an IP20 protection rating, so the inverter must be installed inside a suitable cabinet while remaining accessible for wiring and ventilation. Its input section accepts a supply of 400 to 480 VAC, and the rectifier supports line frequencies of 50 or 60 Hz without derating. An internal auxiliary supply provides 24 VDC for sensors, contactors, and related low-voltage devices. This auxiliary rail can deliver a maximum current of 2 A, eliminating the need for a separate low-voltage power supply when the connected load remains within that limit. The inverter is air-cooled, so the cabinet layout must provide unobstructed airflow through the front and side cooling channels. It also complies with climatic category 3K3 under EN 60721-3-3, making it suitable for workshop environments where conductive dust and excessive humidity are absent.
The permitted operating temperature range is +10 to +55 °C, and forced cabinet ventilation must keep the intake air within this range to prevent overheating or an unexpected shutdown. During shipment or unpowered storage, the electronics can withstand temperatures from -25 to +70 °C. Continuous operation at full load produces approximately 360 W of cooling losses, which must be removed by cabinet fans with sufficient airflow capacity. The front and side ventilation paths should remain clear so heated air does not recirculate through the inverter. The chassis weighs 20 kg, requiring a mounting shelf or support structure suitable for the unit’s mass. Adequate clearance around the housing also provides access to the power connections, auxiliary wiring, and communication interface during installation and routine inspection.
