PSI6300.740-L1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat PSI6300.740-L1 is a medium frequency inverter from the PSI Frequency Inverters series and weighs approximately 20 kilograms. It operates on a mains voltage of 400 to 480 VAC and supports a frequency of 50 or 60 Hz. The unit features air cooling, a degree of protection rated at IP20, and an integrated power supply with a 24 VDC output voltage and maximum 2 Amp output current.
Internal Product Review
The PSI6300.740-L1 is a medium frequency inverter designed for stable operation on 400 - 480 VAC mains. Air-cooled construction and IP20 protection support dependable cabinet integration in controlled industrial settings. A 24 VDC integrated power supply rated at 2 A adds practical control-side support, making this inverter a strong fit for medium-frequency applications.
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Product Description:
The PSI6300.740-L1 is a medium-frequency inverter developed by Bosch Rexroth Indramat for the PSI Frequency Inverters series. The unit conditions three-phase plant power and delivers controlled medium-frequency energy to induction heating or resonant-load stations used in industrial automation. An embedded 24 V auxiliary supply can power local control electronics, while an Ethernet timer interface synchronizes operation with higher-level controllers. This arrangement provides a single packaged source for the load and its associated control devices, reducing the number of separate power components required in the cabinet.
The power stage accepts a three-phase mains input of 400–480 VAC and is compatible with supply grids operating at 50 or 60 Hz, allowing use with common industrial distribution systems. An integrated switch-mode power supply produces 24 VDC with a maximum output current of 2 A. This auxiliary rail can supply contactors, sensors, or fieldbus nodes without requiring an external auxiliary transformer. The housing has an IP20 rating, providing basic protection against finger contact when the inverter is installed inside a cabinet while permitting airflow across the heat sink. Appropriate cabinet protection and spacing are still required to prevent contact with electrical components and to maintain unrestricted ventilation around the inverter.
Thermal management relies on forced-air cooling, and the device must be mounted so exhaust air can remove up to 360 W of cooling losses under full load. Reliable operation is maintained within an ambient temperature range of +10 to +55 °C, while transportation and storage temperatures may fall to −25 °C without damage. The 3K3 climate classification indicates suitability for standard production areas with moderate humidity and dust exposure. The chassis weighs 20 kg and incorporates lifting eyelets to support controlled handling during cabinet installation. Adequate clearance around the air inlet and outlet helps prevent recirculation of heated exhaust air and supports stable operation at higher loads.
