Product Description:

The PSI6100.628-L1 is a medium-frequency inverter produced by Bosch Rexroth Indramat for the PSI Frequency Inverters series. It converts three-phase mains power into a controlled medium-frequency output that drives induction heating coils, high-speed spindles, or other process loads requiring precise power modulation. Integrated control and an auxiliary supply allow the unit to operate as a stand-alone element within automated machining cells. As part of an induction power supply chain, it provides the regulated current and frequency needed for efficient electromagnetic coupling and rapid thermal cycles.

The inverter accepts a three-phase supply ranging from 400 to 480 VAC, allowing direct connection to standard factory power networks. Its input stage operates at line frequencies of 50 or 60 Hz, eliminating the need for external frequency converters. A built-in auxiliary supply delivers 24 VDC at up to 2 A, supporting sensors or fieldbus nodes within the same cabinet. During continuous operation, the power stage dissipates up to 360 W of heat, which must be considered when determining the airflow required to protect the semiconductor modules from thermal overload.

The enclosure has an IP20 protection rating, so the inverter must be mounted within a closed panel that prevents unintended contact with internal components. Reliable operation is maintained at temperatures from +10 to +55 °C, while the electronics can withstand storage or transportation temperatures from -25 to +70 °C. The unit meets climatic category 3K3 under EN 60721-3-3 for operation under moderate humidity and dust conditions. Its air-cooled design removes heat without requiring liquid lines, pumps, or an external coolant circuit. A DeviceNet timer interface supports networked startup sequences, and the assembly weighs 20 kg, which assists with load calculations for vertical panel sections.