Product Description:

The PSI65C0.660-W1 inverter is produced by Bosch Rexroth Indramat as part of the PSI Frequency Inverters series. Acting as a medium-frequency power source, it converts three-phase mains power into a controllable output used for induction heating, joining, or other automated processes that need tightly regulated energy. Integration is simplified by an internal 24 V control supply and DeviceNet timing functions, so the unit installs directly alongside drives and PLC hardware on modern production lines. Its design supports continuous duty in induction hardening stations and specialized welding generators where stable medium-frequency power is critical.

The inverter connects to plant power in the range of 400–480 VAC at 50/60 Hz, so it can be supplied from standard industrial switchgear without transformers. A water-cooled heat sink removes process heat while limiting frame temperature, and the housing carries an IP20 rating that permits cabinet mounting where basic protection against accidental contact is required. An integrated auxiliary supply delivers 24 VDC for contactors, sensors, and fieldbus electronics, eliminating the need for an external power module. The DeviceNet timer coordinates output enabling and ramp functions, while the medium-frequency bridge topology accepts gating commands from the internal controller to produce the required kilohertz output for the connected load.

In continuous production environments, the auxiliary source can furnish up to 2 A, which is sufficient for relay coils and small actuators. Under full load, the inverter dissipates no more than 420 W, and this value is used to determine the required coolant flow and heat exchanger capacity. The permitted operating ambient temperature range is +10 to +55 °C, and the inverter may be stored or transported between −25 and +70 °C without damage, in accordance with climatic classification 3K3 under EN 60721-3-3. The chassis weighs 25 kg, so the mounting panel and its supports must be suitable for this load.