PSI63C0.333-W2 Bosch Rexroth Indramat
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MPN: R911174607
The Bosch Rexroth Indramat PSI63C0.333-W2 is a medium frequency inverter from the PSI Frequency Inverters series. It features water cooling, operates at a mains voltage of 480 to 690 VAC with a frequency of 50 or 60 Hz, and has a protection rating of IP20. The inverter weighs approximately 25 kilograms and includes an integrated 24 VDC power supply unit with a maximum output current of 2 A.
Internal Product Review
The PSI63C0.333-W2 is a medium frequency inverter with water-cooled thermal management and IP20 protection. Support for 480 - 690 VAC mains and 50 or 60 Hz operation gives the inverter strong flexibility in industrial power environments. An integrated 24 VDC power supply with up to 2 A output makes this model a strong choice for streamlined inverter installations.
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Product Description:
The PSI63C0.333-W2 is a medium-frequency inverter produced by Bosch Rexroth Indramat within the PSI Frequency Inverters series. The unit converts high-voltage three-phase power into controlled medium-frequency output used to drive induction heaters, high-speed spindles, or other loads that benefit from adjustable AC beyond the standard mains range. In an automation cell, it serves as the power stage between the plant supply and the motion or process hardware, allowing a higher-level controller to adjust current and frequency while the inverter handles switching, protection, and auxiliary power distribution.
The power section accepts a line voltage range of 480–690 VAC, allowing installation on common industrial power systems within this range without step-up transformers. It synchronizes with either 50 or 60 Hz grids, so the same unit can operate with either supported line frequency. An integrated auxiliary supply produces 24 VDC at up to 2 A, simplifying cabinet wiring for relays, sensors, and gateway modules. The housing is rated IP20, which means live parts are protected against finger contact, but the inverter must be installed in a separately ventilated control enclosure for protection against dust and moisture.
Thermal management relies on a water-cooled baseplate that channels coolant through the heat sink. Under full load, the cooling system must remove 420 W of heat to keep semiconductor temperatures within acceptable limits. The assembly satisfies environmental class 3K3 under EN 60721-3-3, allowing operation in moderately heated production areas where conductive dust and condensation are absent. Operation is permitted from +10 °C to +55 °C, while storage is permitted at temperatures as low as -25 °C. The inverter has a total mass of 25 kg, and communication with a master controller is handled through the INTERBUS timer interface for coordinated frequency commands.
