PSI63C0.738-L1 Bosch Rexroth Indramat
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MPN: R911174421
The Bosch Rexroth Indramat PSI63C0.738-L1 is a medium frequency inverter from the PSI Frequency Inverters series. It features an air-cooled design, IP20 protection, and supports mains voltages between 400 and 480 VAC at 50 or 60 Hz. The integrated power supply provides up to 2 Amps at 24 VDC, and the unit weighs approximately 20 kilograms.
Internal Product Review
The PSI63C0.738-L1 is a Bosch Rexroth Indramat medium frequency inverter with air-cooled operation and IP20 protection. Support for 400 to 480 VAC mains voltage and 50 or 60 Hz input makes integration straightforward in standard industrial power systems. A 24 VDC integrated power supply rated to 2 A adds practical control-side capability and rounds out a well-designed inverter package.
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Product Description:
The PSI63C0.738-L1 belongs to the PSI Frequency Inverters series from Bosch Rexroth Indramat. This air-cooled, medium-frequency inverter converts three-phase utility power into a regulated high-frequency output that drives induction heating generators, resonant converters, and other automation loads that require rapid energy adjustment. Integrated control functions and an Ethernet-based timer interface allow the unit to synchronize with higher-level PLCs, making it suitable for production lines that require compact frequency control and low-voltage auxiliary power.
The inverter connects directly to industrial mains within a range of 400 to 480 VAC, so step-up transformers are not needed in typical European or North American plants. Input synchronization remains stable at 50 or 60 Hz, allowing operation with either utility standard without equipment changes. During operation, internal power loss is limited to 360 W, which helps determine the cabinet ventilation needed for continuous duty. Protection of live parts is rated at IP20, guarding against contact by fingers and similarly sized objects while permitting airflow across the air-cooled heat sink. A separate auxiliary supply delivers 24 VDC to the control electronics and external sensors, eliminating the need for a standalone power module.
For peripheral loads such as contactor coils or encoders, the integrated supply can provide up to 2 A without affecting the main inverter stage. The unit meets class 3K3 under EN 60721-3-3, allowing operation in production facilities with moderate dust and humidity when temperatures remain within +10 to +55 °C. The chassis weighs 20 kg and can be installed in a standard 19-inch rack. The Ethernet timer port supports communication with connected control equipment, while the permitted storage temperature ranges from -25 to +70 °C.
