PSI6300.634-L1 Bosch Rexroth Indramat
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MPN: R911171709
The Bosch Rexroth Indramat PSI6300.634-L1 is a medium frequency inverter from the PSI Frequency Inverters series with a 6-pulse bridge DC link rectifier. This device operates within a mains voltage range of 400 to 480 VAC, supports three-phase input, and has a rated mains current of 110 Amps. It features air cooling, a maximum secondary current of 36 kA, and an inverter frequency of 1000 Hz.
Internal Product Review
The PSI6300.634-L1 is a Bosch Rexroth Indramat medium frequency inverter with 3-phase input and a 400 to 480 VAC mains range. Air-cooled construction and a 6-pulse bridge rectifier support efficient thermal performance and stable power conversion in demanding drive systems. A 1000 Hz inverter frequency makes the inverter a strong choice for high-response industrial applications.
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Product Description:
The PSI6300.634-L1 medium-frequency inverter is produced by Bosch Rexroth Indramat for the PSI Frequency Inverters series. It converts three-phase mains power into a controlled medium-frequency output that feeds induction heating coils, resonant converters, or other plant equipment requiring adjustable medium-frequency energy. Within an automation cell, the unit functions as a standalone power module, while DeviceNet communication allows higher-level controllers to coordinate start, stop, and ramp commands. This arrangement supports centralized control without requiring separate command wiring for every operating function.
This inverter accepts a three-phase supply of 400 to 480 VAC, and the internal bridge rectifier supplies a DC link that the IGBT stage switches at up to 1000 Hz. Continuous current draw from the supply is limited to 110 A, while short production peaks can reach a primary current of 800 A. The isolated secondary circuit can supply up to 36 kA to a workpiece transformer. Air cooling moves heat away from the six-pulse bridge and switching devices. The housing requires at least 100 mm of clearance above and below to maintain unobstructed airflow and prevent excessive heat accumulation around the power electronics.
Total thermal dissipation inside the enclosure reaches 170 W at maximum inverter load, and an additional control-cabinet base loss of 69 W must be removed by the panel ventilation system. The sheet-metal body measures 239 mm in width, 280 mm in depth, and 463 mm in overall height. A 3 mm gasket at the mounting flange seals the interface against dust ingress. Power lugs accept conductors with a minimum cross-sectional area of 35 mm², and the clamp set accommodates conductors as large as 50 mm², allowing the cable size to suit the run length and current demand. The mains conductors connect to screw terminals, providing a secure connection under high-current operating conditions. All controls are accessible from the front, which keeps operating functions within reach when the inverter is installed in a densely arranged machine cabinet.
