PSI 6300.322L1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat PSI 6300.322L1 is a medium frequency inverter from the PSI Frequency Inverters series. This air cooled inverter has a maximum output current of 2 A at 24 VDC and operates on a mains voltage of 400 to 480 VAC at 50 or 60 Hz. It offers IP20 protection and weighs around 20 kilograms.
Internal Product Review
The PSI 6300.322L1 is a well-engineered medium frequency inverter designed for dependable industrial drive service, with 400 to 480 VAC input and 50 or 60 Hz mains compatibility. Air-cooled construction and IP20 protection support stable cabinet operation, making this model a strong choice for controlled industrial environments.
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Product Description:
The PSI 6300.322L1 belongs to the PSI Frequency Inverters series manufactured by Bosch Rexroth Indramat. It is classified as a medium-frequency inverter and converts three-phase factory power into a controllable output for induction heating generators, hardening machines, and other equipment that requires variable medium-frequency energy. The unit allows an automation system to regulate process power electronically instead of relying on mechanical or tap-changing methods, which improves process repeatability and setup flexibility on the production floor.
The inverter connects to a three-phase supply rated at 400 to 480 VAC and accommodates grid frequencies of 50 or 60 Hz, allowing installation with either common mains frequency. An internal auxiliary supply delivers 24 VDC control power and can source up to 2 A for sensors, relays, or a supervisory PLC. The enclosure has an IP20 protection rating, which guards against accidental contact with internal components while requiring installation inside a cabinet for protection from dust and liquids. Compliance with climatic class 3K3 under EN 60721-3-3 supports operation in controlled indoor areas where humidity and airborne contaminants are limited. Semiconductor and magnetic-component heat is removed through forced convection to keep critical components within their thermal limits during continuous operation.
The air-cooled thermal design does not require fluids or external chillers, but the cabinet must provide sufficient exhaust airflow to remove up to 360 W of cooling losses. During operation, the inverter supports ambient temperatures from +10 to +55 °C; operation outside this range may require shutdown or derating, while storage is permitted from -25 to +70 °C. The chassis has a mass of 20 kg, which supports heat distribution and vibration damping while requiring a secure mounting surface and suitable lifting support during cabinet installation.
