PSI65C0.638-W1 Bosch Rexroth Indramat
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MPN: R911175316
The Bosch Rexroth Indramat PSI65C0.638-W1 is a medium frequency inverter from the PSI Frequency Inverters series and weighs approximately 25 kilograms. It operates at a mains voltage of 400 to 480 VAC with a frequency of 50 or 60 Hz, and features water cooling. The integrated power supply unit provides a maximum output current of 2 Amps at 24 VDC.
Internal Product Review
The PSI65C0.638-W1 is a Bosch Rexroth Indramat medium frequency inverter with water-cooled thermal management. Operation on 400 to 480 VAC mains at 50 or 60 Hz supports straightforward integration into standard industrial power systems. A 24 VDC integrated power supply rated to 2 A adds practical control support, making the inverter a strong choice for stable machine performance.
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Product Description:
The PSI65C0.638-W1 is a medium-frequency inverter manufactured by Bosch Rexroth Indramat within the PSI Frequency Inverters series. It converts three-phase mains power into a controllable medium-frequency output for induction heating equipment, high-speed spindles, and other motion or process loads in automated factories. The inverter serves as a power-conversion element in industrial automation systems that require adjustable frequency and effective thermal management. Its regulated output allows connected equipment to operate under controlled electrical conditions as process demands change.
The inverter accepts a mains supply of 400 to 480 VAC at 50 or 60 Hz, allowing direct connection to common plant distribution networks. Internal conversion stages are protected by an IP20 enclosure, so the unit must be installed inside a suitable cabinet. The inverter is water-cooled, and liquid circulation through an external heat exchanger removes heat from the power electronics. This cooling method helps maintain stable semiconductor temperatures when cabinet airflow alone is insufficient. The integrated power supply provides an auxiliary output of up to 24 VDC for sensors, contactors, and control circuits, with an unregulated peak current of 2 A. DeviceNet provides timer and communication functions, enabling parameter access and operating-status feedback without an additional gateway.
The inverter operates within an ambient temperature range of +10 to +55 °C. During operation, it transfers a maximum heat loss of 420 W to the coolant, so the external cooling circuit must accommodate this continuous thermal load. The unit meets climatic category 3K3 according to EN 60721-3-3, which indicates suitability for moderate industrial humidity and vibration conditions. Its permitted storage and transportation temperature range extends from -25 to +70 °C. The inverter weighs approximately 25 kg, which must be considered when selecting cabinet supports and mounting hardware. Residual heat within the cabinet still requires ventilation or another suitable removal method, even though the primary power-stage losses are transferred to the coolant. Loads connected to the integrated auxiliary supply must remain within its 2 A peak-current limit to prevent excessive demand on the control-power circuit.
