PSI61C0.758-L1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat PSI61C0.758-L1 is a medium frequency inverter from the PSI Frequency Inverters series. It operates with an output current of 400 Amps, a mains voltage range of 400 to 480 Volts AC, and features IP20 protection. The inverter is air cooled, has a control supply of 24 Volts DC, and supports three input phases.
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Product Description:
The PSI61C0.758-L1 belongs to the PSI Frequency Inverters series manufactured by Bosch Rexroth Indramat. It provides medium-frequency power conversion for industrial automation equipment by converting three-phase mains power into regulated current. The output can supply heating coils, transformers, or specialized drive systems that require controlled current profiles. Its cabinet-mounted design supports operation in systems where the inverter must coordinate power delivery with external controls and process equipment.
The inverter accepts a three-phase supply ranging from 400 to 480 VAC and can deliver up to 400 A to the connected load. Its gating electronics switch at 1 kHz, balancing waveform quality with semiconductor power losses during operation. The control electronics operate from a dedicated 24 V DC source, while separate 24 V I/O lines provide field-level signaling for connected devices. The IP20 housing protects against accidental finger contact with live components and is intended for installation inside an enclosed cabinet. An Ethernet-based timer supports synchronized triggering, and the internal program memory accommodates 256 steps for user-configured operating sequences. These timing and memory functions allow the inverter to coordinate current profiles without requiring continuous sequence control from an external PLC.
The unit tolerates ambient temperatures up to 55 °C, while the temperature of the cooling air should not exceed 45 °C. Forced airflow removes a continuous thermal load of 360 W from the power stage, helping internal components remain within their permissible operating range. On the secondary side of a PSG 3100 transformer, the inverter can withstand fault currents of 20 kA. The drive section supports a steady system current of 110 A during continuous operation. Power terminals accept cables with conductor sizes up to 50 mm², providing capacity for the inverter’s high-current connections. Control wiring connects through 35 mm² terminal blocks to accommodate the designated plant conductors and maintain secure electrical connections.
Frequently Asked Questions about PSI61C0.758-L1:
Q: What is the maximum ambient temperature for the PSI61C0.758-L1 inverter?
A: The PSI61C0.758-L1 frequency inverter can operate with an ambient temperature limit of up to 55 °C.
Q: What is the output current capability of the PSI61C0.758-L1?
A: This inverter features an output current rating of 400 A, suitable for large-scale industrial loads.
Q: What mains voltage and phase requirements are needed for operating the PSI61C0.758-L1 inverter?
A: The PSI61C0.758-L1 supports a mains voltage range from 400 to 480 VAC with three input phases.
Q: What cooling method does the PSI61C0.758-L1 use?
A: The cooling method used by this inverter is air cooled, requiring cooling air temperatures up to 45 °C.
Q: What level of protection does the PSI61C0.758-L1 inverter offer?
A: The PSI61C0.758-L1 provides protection rated at IP20, allowing installation in protected environments.
