PSI64C0.761-W1 Bosch Rexroth Indramat
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MPN: R911337005
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The Bosch Rexroth Indramat PSI64C0.761-W1 is a medium frequency inverter from the PSI Frequency Inverters series, designed with a water cooled system and an IP20 degree of protection. It operates at a mains voltage of 400 to 480 VAC with a frequency of 50 or 60 Hz, and provides an integrated power supply unit output of 24 VDC at up to 2 Amps. The inverter has a maximum cooling loss of 420 Watts and weighs approximately 25 kilograms.
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Product Description:
The PSI64C0.761-W1 is a medium-frequency inverter manufactured by Bosch Rexroth Indramat and assigned to the PSI Frequency Inverters series. The unit converts three-phase industrial mains power into a controllable medium-frequency output that drives induction heating coils, spindle motors, and other loads requiring precise frequency regulation in automated production. It mounts inside an electrical cabinet, and its water-cooled design removes heat from the semiconductors without relying on forced air, allowing compact installation close to process machinery. The product supports Ethernet-based supervision for integration with higher-level motion or process controllers.
The inverter accepts a supply of 400–480 VAC at 50/60 Hz, so it can be connected directly to standard low-voltage distribution boards without a step-up transformer. An internal power supply delivers a 24 VDC control voltage at a maximum current of 2 A, which is sufficient for sensors, relays, or a small human-machine interface. The enclosure has a protection rating of IP20, indicating protection against accidental contact with live parts while requiring installation inside a closed cabinet. A water jacket circulates coolant through the baseplate to remove operating heat. Built-in Ethernet timer functions provide cycle coordination with external devices connected to the control system.
The unit is rated for climatic category 3K3 according to EN 60721-3-3, meaning it tolerates moderate humidity and dust in ventilated switchgear spaces. During operation, it transfers up to 420 W of heat through the water circuit, so the cooling system must maintain adequate flow and temperature to keep the semiconductors within their operating limits. Reliable performance is supported at temperatures from +10 to +55 °C. The inverter may be transported or stored at temperatures from -25 to +70 °C without degradation. With a weight of approximately 25 kg, the assembly requires secure support and appropriate handling during cabinet installation.
