PSI64C0.765-W1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat PSI64C0.765-W1 is a medium frequency inverter from the PSI Frequency Inverters series. It supports a mains voltage range of 400 to 480 VAC and is water cooled, requiring a minimum water flow of 4 liters per minute with a pressure drop of 0.6 bar. The unit has cabinet base losses of 69 W, cabinet losses of 210 W at maximum load, and a maximum cooling loss of 700 W.
Internal Product Review
The PSI64C0.765-W1 is a medium frequency inverter with water-cooled thermal management that appears well suited for demanding drive applications. A 1 ms control cycle and 1000 Hz output frequency support fast, stable response in higher-speed processes. Strong thermal capacity with maximum cooling losses of 700 W makes the inverter a very capable choice for intensive industrial service.
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Product Description:
The PSI64C0.765-W1 is a medium-frequency inverter produced by Bosch Rexroth Indramat within the PSI Frequency Inverters series. The unit converts three-phase line power into a controlled high-frequency output for induction heaters, melting furnaces, and other equipment that requires adjustable medium-frequency power. In automated lines, it acts as the energy source for thermal processes and works with drives and PLCs so heating steps stay aligned with the programmed process sequence. Its modular format allows it to be installed with companion PSI units in the same cabinet when a system uses multiple heating channels.
The inverter accepts a three-phase input of 400 – 480 VAC and draws a rated line current of 220 A under nominal thermal load. For short pulses such as coil energization, it can reach a maximum primary current of 1600 A, while the internal control loop is updated every 1 ms to support stable regulation. The medium-frequency output is adjustable up to 1000 Hz, which suits many ferromagnetic heating applications and helps the power stage respond to changing process demand. Standby cabinet losses are limited to 69 W, and the power section can reject up to 700 W of heat at maximum duty. An Ethernet-based timer synchronizes energy bursts with external controllers so heating cycles can stay coordinated with surrounding machine functions.
Thermal management uses a water-cooled plate with an M16×1.5 threaded port for the cooling connection. At the minimum flow of 4 l/min, the pressure drop across the exchanger is 0.6 bar, and cabinet heat dissipation reaches 210 W during continuous full-load operation. The housing measures 288 mm in width, 280 mm in depth, and 653 mm in height, and it requires 100 mm of rear clearance for ventilation and service access. Power lugs accept a conductor cross-section of 95 mm², allowing the input connection to match the stated current capacity. These mounting, cooling, and connection features make the unit suitable for installation in standard industrial control cabinets.
