PSI63C0.780-L1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat PSI63C0.780-L1 is a medium frequency inverter from the PSI Frequency Inverters series. It operates with a mains voltage of 400 to 480 VAC, supports a frequency of 50 or 60 Hz, and has an integrated power supply unit outputting 24 VDC at up to 2 Amps. The air-cooled unit features IP20 protection and weighs approximately 20 kilograms.
Internal Product Review
The PSI63C0.780-L1 is a medium frequency inverter designed for 400-480 VAC mains systems. Air-cooled construction and IP20 protection support dependable cabinet integration in controlled industrial environments. An integrated 24 VDC power supply with up to 2 A output adds practical control support, making the inverter a strong choice for streamlined machine builds.
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Product Description:
The PSI63C0.780-L1 is a medium-frequency inverter produced by Bosch Rexroth Indramat for the PSI Frequency Inverters series. In an automation cell, this unit converts fixed three-phase mains power into a controllable medium-frequency output that drives induction heaters, spindle motors, or other loads requiring precise energy delivery at elevated frequencies. By integrating the power stage with an auxiliary 24 VDC supply, the device simplifies cabinet wiring and supports distributed machine modules that rely on one packaged source for power conversion and low-voltage control power. This arrangement also reduces the number of separate power modules required inside the control cabinet.
The inverter connects to industrial power grids rated at 400–480 VAC and synchronizes with supply networks operating at 50 or 60 Hz. This dual-frequency compatibility allows the same model to operate with either supported line frequency. Inside the housing, a switched-mode power supply delivers 24 VDC control voltage with a maximum current draw of 2 A, allowing sensors and contactors to run from the same chassis without an external power module. Forced airflow removes heat generated by semiconductor switching. The inverter dissipates up to 360 W through its cooling system, so the cabinet must provide adequate airflow to keep internal components within their permitted temperature range.
The unit has an ingress protection rating of IP20, so it requires installation inside a closed cabinet but does not need special seals on its front panel. It withstands the industrial conditions covered by the 3K3 climatic class of EN 60721-3-3, including the moderate dust and humidity commonly found in production facilities. Continuous operation is permitted at ambient temperatures from +10 to +55 °C, while storage is permitted from -25 to +70 °C when the unit is not operating. The air-cooled design eliminates the need for liquid lines or an external coolant circuit. A built-in Ethernet timer function allows controllers to trigger fixed-duration energy bursts without external relays. The inverter has a shipping mass of 20 kg, which must be considered when selecting the cabinet structure and mounting hardware.
