PSI63C0.660-L1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat PSI63C0.660-L1 is a medium frequency inverter from the PSI Frequency Inverters series. It is air cooled, features IP20 protection, and weighs approximately 20 kilograms. This inverter supports a mains voltage of 400 to 480 VAC and operates at either 50 or 60 Hz, with a built-in power supply outputting 24 VDC at a maximum of 2 A.
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Product Description:
The PSI63C0.660-L1 is a medium-frequency inverter manufactured by Bosch Rexroth Indramat within the PSI Frequency Inverters series. Intended for industrial automation, it converts three-phase plant power into a regulated high-frequency output for induction heating, spindle drives, and other processes that require stable, adjustable energy. A built-in 24 V auxiliary rail and a DeviceNet timer interface allow the unit to synchronize with motion controllers while occupying moderate cabinet space.
Power is supplied from a three-phase line rated at 400–480 VAC, so the inverter fits standard factory power distribution systems. A frequency tolerance of 50 or 60 Hz allows deployment across regions without hardware changes. The housing provides a protection class of IP20, which prevents accidental contact with live conductors but requires installation inside a closed enclosure. For peripheral loads, the integrated supply provides 24 VDC with a maximum current of 2 A. This output supports contactors, sensors, or small fieldbus nodes without requiring an external source. DeviceNet sequencing can trigger frequency ramps or dwell periods directly through the network, eliminating the need for additional PLC timing blocks.
Heat is removed through forced-air cooling, with directed airflow carrying switching and core losses away from the heat sink. At maximum load, the unit expels up to 360 W of thermal energy, a value used to size cabinet fans and ducting. The inverter meets climatic category 3K3 under EN 60721-3-3, making it suitable for rooms with light dust and controlled humidity. The operating temperature ranges from +10 °C to +55 °C, while the storage temperature ranges from -25 °C to +70 °C. The assembly weighs 20 kg, allowing it to be rack-mounted or panel-mounted with suitable lifting aids. Adequate clearance around the cooling path helps prevent recirculation of warm exhaust air inside the enclosure.
