Product Description:

The PSI63C0.759L1 is a medium-frequency inverter in the PSI Frequency Inverters series for controlling induction heating and other high-frequency power stages in automated lines. By converting three-phase mains power into adjustable medium-frequency output, the unit supplies the energy profile needed for processes such as rapid heating, controlled soak cycles, and repeatable thermal treatment. Its TriCore CPU handles control loops and diagnostic tasks in real time, so output regulation can respond quickly to load changes. The integrated Ethernet interface supports timer synchronization with upstream PLC events and gives the inverter a direct link to plant automation.

The inverter operates across a line window of 400-480 VAC and produces carrier signals up to 1000 Hz, allowing close matching of load impedance and heating depth. For steady operation, it draws a nominal mains current of 110 A, yet it can deliver up to 800 A on the primary side when rapid thermal ramps are required. The transformer secondary is rated for surges as high as 36 kA to handle coil back EMF during fast magnetization cycles. Air cooling removes 69 W of basic cabinet losses without external chillers, the three-phase topology keeps current symmetrical across conductors, and the serial I/O block supplies 128 digital inputs and 128 digital outputs for field sensors and interlocks.

The enclosure meets IP20, so the inverter is intended for protected switch-cabinet mounting where direct contact and debris exposure are limited by the surrounding enclosure. The minimum cable cross-section is 35 mm², and the terminals accept conductors up to 50 mm² to support the required current capacity. Phase identification is simplified by fixed 3-pole bus bars, and placing both power and Ethernet connections on one face helps shorten cabinet wiring and keeps routing more organized. Total mass is 20 kg, which keeps handling manageable during installation.