Product Description:

Bosch Rexroth Indramat builds the PSI6300.000-W1 as part of the PSI Frequency Inverters series. The unit converts three-phase input power into controlled medium-frequency output, allowing induction heating, brazing, or forging stations to regulate energy precisely during automated production cycles. By modulating the inverter’s carrier frequency and current envelope, the unit can match the electrical profile to different workpiece sizes while keeping the thermal load within set limits.

The inverter’s switching section operates at a clock frequency of 1 kHz, so each millisecond of carrier period can be shaped to match the 1 ms time resolution stored in its 256-step program memory. During continuous duty, the water-cooled bus bars conduct 110 A without exceeding temperature limits, while a separate logic rail requires 24 VDC and allows the interface to be powered from standard control supplies. Liquid heat removal is mandatory; a flow of 4 l/min through the M16 × 1.5 connectors keeps semiconductor junctions below the inlet threshold, and the external cooler dissipates 420 W. The housing carries an IP20 rating, indicating finger-safe live parts but no dust or splash sealing, so the chassis must be placed inside a protected cabinet. The input accepts 400–480 VAC three-phase power and can be landed on 35 mm² terminals.

In transient heating pulses, the inverter can deliver up to 800 A at its H-bridge output, and the matching transformer sees a secondary current ceiling of 36 kA, giving headroom for short, high-power bursts without saturation. Thermal stability is safeguarded by a maximum water inlet temperature of 30 °C; exceeding this value would reduce semiconductor life. Installation must leave at least 100 mm of clearance on all sides so the water-cooled heat sink can exchange residual heat with ambient air.