Product Description:

The PSI63C0.637-L2 is a medium-frequency inverter produced by Bosch Rexroth Indramat within the PSI Frequency Inverters series. Designed for cabinet installation, the unit converts high-voltage three-phase mains power into a controllable output suitable for induction heating or motor test stands that operate above line frequency. In an automation cell, the inverter serves as the power stage that links PLC-based timing commands to load coils or specialized spindle drives. This arrangement enables repeatable energy delivery across selectable kilohertz ranges while allowing the controller to coordinate the inverter with other automated processes.

The integrated auxiliary supply delivers 24 VDC with a maximum output current of 2 A, allowing contactors, sensors, or fieldbus nodes to receive power directly from the inverter without a separate power supply. The main input range of 480 to 690 VAC allows the device to connect to standard high-voltage distribution networks used in heavy industry. A selectable line frequency of 50 or 60 Hz permits use in North American and international plants without internal changes. During operation, the unit dissipates up to 360 W of heat, indicating the airflow that the enclosure must provide to keep semiconductor temperatures within safe limits. Adequate cabinet ventilation also helps prevent heat from accumulating around adjacent control components.

The housing carries an IP20 rating, providing protection against finger contact but no protection against liquids, which makes the unit suitable for closed control cabinets with filtered air circulation. Continuous operation is permitted from +10 to +55 °C, while the unit can be stored or transported at temperatures from -25 to +70 °C. Climatic category 3K3 under EN 60721-3-3 supports operation in production halls with moderate humidity and dust. Internal fans provide air cooling to maintain acceptable component temperatures during sustained operation. The inverter has a total mass of 21 kg, which should be considered when selecting the panel structure and installation hardware. Its built-in DeviceNet timer interface supports synchronization with higher-level controllers without requiring an additional gateway module.