PSI6300.357-L1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat PSI6300.357-L1 is a medium frequency inverter and part of the PSI Frequency Inverters series. It is air cooled, weighs approximately 20 kilograms, and operates at a mains voltage of 400 - 480 VAC with a frequency of 50 or 60 Hz. The inverter provides an integrated power supply unit output of up to 2 A at 24 VDC and features IP20 protection.
Internal Product Review
The PSI6300.357-L1 is a medium frequency inverter that fits industrial drive applications well, with a 400 - 480 VAC mains range and 50 or 60 Hz input capability. Air-cooled design and IP20 protection support dependable cabinet integration and consistent thermal management. An integrated 24 VDC power supply rated at up to 2 A adds practical control-side support, making this inverter a strong technical choice.
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Product Description:
The PSI6300.357-L1 is a medium-frequency inverter produced by Bosch Rexroth Indramat within the PSI Frequency Inverters series. As a frequency converter, it supplies controlled AC power at frequencies higher than the mains frequency to machining centers, induction heaters, and similar automated equipment that require precise speed or energy control. The unit sits between the plant’s three-phase supply and the load, modulating voltage and frequency to match process requirements. Its integrated electronics communicate with PLC systems through an INTERBUS interface, allowing the inverter to coordinate its operation with other automation components. The compact design supports installation in industrial control cabinets where space and organized system integration are important.
It accepts a three-phase input of 400–480 VAC at standard industrial line frequencies of 50 or 60 Hz. An internal auxiliary supply delivers 24 VDC at up to 2 A, providing power for sensors, contactors, or fieldbus nodes without requiring a separate supply. The housing has an IP20 protection rating, so the inverter must be mounted inside a cabinet that protects it from dust and direct moisture. These electrical characteristics support integration with typical low-voltage switchgear. The available auxiliary power also simplifies connections to control devices used within an automated cell.
The air-cooled design expels a maximum of 360 W as cooling loss, which must be included in cabinet heat calculations. Reliable operation is supported at ambient temperatures from +10 to +55 °C. The inverter can withstand storage or transportation temperatures from -25 to +70 °C without performance degradation. The assembly belongs to climatic category 3K3 according to EN 60721-3-3, indicating suitability for the vibration and humidity conditions typical of controlled production areas. Its weight is approximately 20 kg, which must be considered when selecting cabinet supports and mounting hardware. An INTERBUS timer circuit coordinates timing signals with higher-level controls to maintain synchronized machine sequences. Adequate cabinet airflow is necessary to remove generated heat and keep the inverter within its permitted operating temperature range.
