PSI6200.321-W1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat PSI6200.321-W1 is a medium frequency inverter from the PSI Frequency Inverters series. This unit is water cooled, weighs approximately 25 kilograms, and has a degree of protection rated at IP20. It operates on a mains voltage of 400 to 480 VAC with a frequency of 50 or 60 Hz, and features an integrated power supply unit with a maximum output current of 2 A at 24 VDC.
Internal Product Review
The PSI6200.321-W1 is a medium frequency inverter built for reliable industrial power conversion. A 400 to 480 VAC mains range and 50/60 Hz compatibility make line integration straightforward across standard plant power systems. Water-cooled design with a 24 VDC integrated power supply rated to 2 A makes this inverter a strong choice for demanding automation service.
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Product Description:
The PSI6200.321-W1 is a medium-frequency inverter built by Bosch Rexroth Indramat and supplied in the PSI Frequency Inverters series. In metal-forming, induction-heating, and spindle-drive applications, it converts fixed mains power into a regulated medium-frequency output that matches the dynamic torque and speed requirements of connected machinery. Acting as the power stage inside an automation cell, it interfaces with higher-level controllers through dedicated bus and signaling points to deliver precise energy to induction coils or rotating loads. This arrangement allows the connected control system to adjust power delivery in response to changing process demands.
The inverter accepts a three-phase input between 400 and 480 VAC, allowing direct connection to standard industrial distribution networks. It operates at either 50 or 60 Hz, so external frequency adaptation is unnecessary when facilities use different grid frequencies. An internal auxiliary supply delivers 24 VDC for control boards and external sensors, and this rail can furnish up to 2 A from the onboard power supply module. The enclosure has an IP20 protection rating, making live parts finger-safe while leaving convection paths open for cabinet airflow. Command and diagnostic data move over the INTERBUS timer channel, providing deterministic communication for speed references and status words without requiring separate wiring harnesses.
Thermal regulation is handled by a water-cooled heat exchanger that must dissipate up to 420 W of power loss at rated load. The unit can operate at ambient temperatures from +10 to +55 °C, and it may be stored or transported at temperatures from -25 to +70 °C. These operating limits correspond to climatic category 3K3 under EN 60721-3-3, indicating suitability for indoor use in temperature-controlled production areas. The unit weighs 25 kg, so its mounting surface and fastening hardware must support the inverter securely. Its cooling circuit transfers heat away from the power electronics and helps reduce dust accumulation inside the cabinet.
