Product Description:

The PSI63C0.715-W1 is a medium-frequency inverter produced by Bosch Rexroth Indramat for the PSI Frequency Inverters series. Within an automated line, it converts a three-phase supply into a regulated medium-frequency output that drives induction heating coils, welding transformers, or other resonance loads that require fast energy modulation. By delivering commanded current with high precision, the unit supports coordinated thermal processes alongside motion sequences within the plant control system.

Its input network accepts 400 – 480 VAC mains, while the electronics are powered from a 24 V DC control supply that also supports the built-in EtherNet timer for coordinated triggering. The inverter switches at a 1 kHz clock frequency and can deliver up to 800 A on the primary side; a dedicated PSG 3100 transformer then steps this to a peak secondary current of 36 kA for the workpiece. Thermal management is handled by a water-cooled heat sink that requires a flow rate of 4 l/min. Under nominal load, the unit removes 69 W of basic cabinet loss and up to 420 W of cooling loss, while field connections use 50 mm² terminals with a wire range up to 35 mm². Maximum cabinet dissipation remains below 110 W, so the housing can be installed in a ventilated electrical cabinet.

Within the enclosure, the design is rated for ambient temperatures up to 55 °C, so the inverter can operate in areas where surrounding air is consistently warm. Continuous work current is limited to 110 A, and the circuitry is protected to IP20 against accidental finger contact with live parts. A mass of 25 kg helps the unit remain stable once it is fastened in place. This layout is suitable for fixed cabinet mounting where reliable electrical connections and steady cooling performance are required during repeated process cycles.