Product Description:

The PSI64C0.731-W1 belongs to the PSI Frequency Inverters series produced by Bosch Rexroth Indramat. It is a medium-frequency inverter intended to regulate induction or transformer loads in automated manufacturing lines where compact, cabinet-mounted drives are preferred. By converting three-phase mains power into a controllable medium-frequency output, the unit supports heating, welding, or resonant power supplies that require fast rise times and stable amplitude control within enclosed industrial environments.

This inverter uses a water-cooled heat exchanger, so the cabinet does not rely on ambient airflow for thermal management. Its housing carries a protection rating of IP20, providing protection against accidental contact while remaining suitable for installation inside a control enclosure. The input section accepts grid voltages between 400–480 VAC at either 50 or 60 Hz, allowing direct connection to common European or North American power systems. Internal logic and sensor circuits are supplied by an auxiliary rail that delivers 24 VDC at up to 2 A, eliminating the need for a separate control supply. An EtherNet timer interface coordinates cycle timing with upstream controllers. The climatic classification of 3K3 per EN 60721-3-3 indicates suitability for sheltered production areas without aggressive contaminants.

Total cooling losses reach 420 W, and this heat must be removed by the facility’s water circuit to keep semiconductor temperatures within their operating limits. Continuous operation is permitted at ambient temperatures from +10 to +55 °C, while storage or transportation is permitted at temperatures as low as -25 °C. The assembly weighs 25 kg, so the mounting surface and lifting equipment must be suitable for its mass. Mains terminals, water connections, and the Ethernet port are grouped on one face to simplify panel wiring and provide direct access to the primary connections. Proper clearance around these connections allows cables and coolant lines to be routed without sharp bends or unnecessary strain.