Product Description:

The PSI6300.204-L1 belongs to the PSI Frequency Inverters series produced by Bosch Rexroth Indramat. Classified as a medium-frequency inverter, it converts factory three-phase power into a controllable medium-frequency output used for spindle drives, induction heating, and other processes that require precise energy delivery at higher electrical frequencies. In automated lines, the unit serves as the interface between the mains supply and motion or process equipment, providing adjustable voltage, galvanic isolation, and an integrated 24 V control rail. This control rail allows downstream sensors and relays to be powered from the same enclosure.

The input section accepts three-phase mains from 400–480 VAC, allowing direct connection to common industrial feeders without step-up transformers. A line frequency tolerance of 50/60 Hz lets the inverter operate in regions that follow either electrical standard. Inside the housing, a power supply module delivers 24 VDC for control electronics at up to 2 A, eliminating the need for an external DIN-rail supply inside the cabinet. All circuitry is protected by an enclosure rated at IP20, so fingers and tools are shielded from live parts while the unit remains open to cabinet ventilation. The design follows climatic category 3K3 of EN 60721-3-3, making it suitable for switchgear rooms where condensation, frost, and high dust loads are not expected.

Maximum cooling loss is limited to 360 W, and the air-cooled heat sink can be sized so exhaust air does not elevate the cabinet temperature beyond the operating range of +10 to +55 °C. When powered down, the inverter withstands storage or transport temperatures from -25 °C to +70 °C without degradation. Field communication is handled through the integrated PROFIBUS interface, enabling status reporting and parameter changes from the PLC. The chassis weighs 20 kg and can be mounted on standard backplates. Its mounting arrangement also supports the vibration limits associated with machine-tool environments.