Product Description:

The Bosch Rexroth Indramat PSI6100.100-W1 is a medium-frequency inverter within the PSI Frequency Inverters series. The unit conditions energy from a three-phase mains supply and feeds induction coils or similar loads that demand precisely metered medium-frequency power for heating or forming tasks on automated production lines. By providing controllable current and frequency, the inverter serves as the link between the plant’s low-frequency utility grid and the high-frequency magnetic field required by induction work heads.

The inverter tolerates input potentials between 400 – 480 VAC, allowing installation on common factory distribution networks. Internally, a switching clock of 1 kHz sets the pulse-width-modulated waveform that is reconstructed into the required medium-frequency output. Thermal design permits a continuous current of 110 A at the inverter terminals, while the power stage can surge to 400 A for short heating cycles. At the transformer secondary, up to 20 kA is available so large workpieces reach process temperature quickly. Control electronics and the integrated timing relay operate from a 24 VDC control supply and a separate 24 V timer circuit. Line connections accept copper conductors up to 35 mm², which matches the specified current density and minimizes voltage drop.

Heat generated by the semiconductors is removed through a water-cooled base plate that needs a flow of 4 l/min at inlet temperatures not exceeding 30 °C. Under those conditions, maximum cooling loss is 420 W, ensuring the device remains within component limits when running at rated load in ambient air up to 55 °C. The enclosure carries an IP20 protection class, suited for mounting inside a switch cabinet with forced ventilation. With a mass of 25 kg, the inverter requires secure mounting inside the cabinet.