PSI6300.133-W2 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat PSI6300.133-W2 is a water-cooled medium frequency inverter from the PSI Frequency Inverters series. It operates with a mains voltage of 480 to 690 VAC and has a mains nominal current of 110 Amps. The device features a maximum primary current of 800 Amps and requires a minimum water flow of 4 liters per minute with a maximum water pressure of 10 bar.
Internal Product Review
The PSI6300.133-W2 is a medium frequency inverter built for stable high-load operation on 480 - 690 VAC mains. Water-cooled construction with a minimum water flow of 4 l/min supports efficient thermal management in continuous-duty applications. A 1 kHz MF output frequency stands out as a strong performance advantage for demanding industrial processes.
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Product Description:
The PSI6300.133-W2 is a medium-frequency inverter manufactured by Bosch Rexroth Indramat as part of the PSI Frequency Inverters series. It conditions three-phase power for process equipment that requires controlled medium-frequency energy in industrial automation. A 3 mm housing gasket protects the electronics from moisture, and the water-cooled chassis transfers thermal load to the facility coolant loop. This arrangement helps keep cabinet temperatures more stable when the inverter is installed near other high-power components. It is suited for applications where controlled power conversion and steady heat removal are required during continuous operation.
The inverter accepts supply ranges of 480 – 690 VAC and draws a nominal line current of 110 A. Water cooling removes up to 420 W of loss, provided the flow never drops below 4 l/min; the cooling circuit also requires system pressure to remain within the stated limit. A maximum primary current of 800 A supports dynamic load demand during medium-frequency operation. Installation requires clearance on the ventilation side, and cable routing calls for conductors sized to the stated minimum while discrete I/O and timer functions operate from 24 V control logic. The terminal block accepts watertight lugs, and the gasket helps maintain a sealed interface around that connection point. Because the unit combines power conversion, cooling, and control connections in one enclosure, cabinet layout must allow space for both cable entry and coolant line routing.
The power section feeds a PSG 3100 transformer where the secondary can surge to 36 kA, and output bars up to 50 mm² are accommodated. When configured for induction heating, the inverter modulates its bridge at a carrier of 1 kHz. The cooling circuit remains effective as long as supply water stays below 30 °C. This transformer interface allows the inverter to supply high secondary demand while maintaining controlled switching behavior at the output stage. Keeping the coolant within the stated temperature limit helps preserve thermal performance during extended production runs.
