PSI65C0.747-W1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat PSI65C0.747-W1 is a medium frequency inverter from the PSI Frequency Inverters series, weighing 70 kg. It features a control cycle of 1000 Hz and supports water cooling with a minimum water flow of 10 liters per minute and a cooling water connection of M16 x 1.5. The inverter has an IP20 protection rating and operates with a mains voltage range of 400 to 480 VAC.
Internal Product Review
The PSI65C0.747-W1 is a medium frequency inverter with water-cooled thermal management. Ethernet/IP I/O and IP20 protection support dependable integration in controlled industrial cabinets. Strong current capability up to 120 kA on the secondary side makes the unit an excellent choice for demanding medium-frequency power applications.
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Product Description:
The PSI65C0.747-W1 is a medium-frequency inverter produced by Bosch Rexroth Indramat for the PSI Frequency Inverters series. It converts a 400–480 VAC mains supply into precisely timed outputs that drive induction coils, transformers, or other medium-frequency loads found in automated heat-treat lines and melting furnaces. By combining power conversion, fast digital control, and closed-loop cooling, the unit delivers stable secondary currents required for demanding industrial processes. Its design suits installations where repeatable thermal output and steady process control are necessary during continuous industrial operation.
The inverter executes its control algorithm every 1000 Hz, allowing tight regulation of output waveforms. It accepts a three-phase input of 400 – 480 VAC and can draw a maximum primary current of 2400 A while supplying up to 120 kA on the secondary side through an external transformer. Water circulation is used for thermal management, and a minimum flow of 10 l/min through the M16 × 1.5 ports limits the pressure drop to 0.65 bar while absorbing as much as 4400 W of cooling losses. The cabinet must accommodate an additional 100 W of basic dissipation and 850 W when the inverter is at full power. A power connection screw sized M10 anchors the bus bars, and the stop circuit can switch 24 VDC at 3 A for emergency load release.
The housing carries an IP20 degree of protection and mounts inside a forced-ventilated cabinet. Control integration is handled over Ethernet/IP, and the interface exposes 32 serial inputs and an equal number of serial outputs for peripheral signaling. Installation weight is limited to 70 kg, which helps support shelf or frame mounting in industrial enclosures. The water-cooled design helps reduce heat buildup around surrounding cabinet components, and the unit is intended for fixed installation in protected electrical cabinets.
