Product Description:

The PSI6300.107-L1 is a medium-frequency inverter produced by Bosch Rexroth Indramat within the PSI Frequency Inverters series. In machining centers and induction heating equipment, the inverter converts fixed industrial mains power into a controlled medium-frequency output that drives resonant loads or specialized transformers, enabling speed-independent power delivery in automated processes. An integrated 24 V timer interface links the inverter to PLC timing circuits, so the unit can be started, stopped, or sequenced directly through the machine control architecture.

The power stage accepts a three-phase input of 400 to 480 VAC, matching common factory distribution networks. It synchronizes with mains frequencies of 50 or 60 Hz, allowing installation in regions that use either frequency standard. A built-in auxiliary supply delivers 24 VDC at up to 2 A, allowing contactors, sensors, or control logic to operate without a separate supply. During operation, the inverter dissipates up to 360 W as heat. The enclosure must provide enough airflow to remove this heat and keep the semiconductors within their permitted operating temperatures.

The electronics are housed in an IP20 enclosure, so an external cabinet must prevent dust and dripping liquids from reaching live parts. Heat is removed through forced-air cooling, which requires external fans or cabinet plenums to move sufficient air across the heat-dissipation path. Rated operation is maintained from +10 to +55 °C. When powered down, the unit may be stored at temperatures from -25 to +70 °C. Vibration and humidity conditions fall under the 3K3 climatic category of EN 60721-3-3, which is intended for sheltered industrial locations. The assembly weighs 20 kg, so its panel mounting points and supporting structure must be securely fastened and capable of carrying the load.