PSI6300.257-L2 Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
MPN: R911332657
The Bosch Rexroth Indramat PSI6300.257-L2 is a medium frequency inverter from the PSI Frequency Inverters series with a maximum output current of 800 amps and a nominal system current of 110 amps. It operates at a mains voltage of 480 to 690 VAC and features air cooling, IP20 protection, and integrated temperature monitoring. The device supports a control supply of 24 V DC and has an overvoltage protection system with MOV.
Internal Product Review
The PSI6300.257-L2 is a Bosch Rexroth Indramat medium frequency inverter suited for demanding power conversion applications. Air-cooled construction and IP20 protection support dependable cabinet installation and steady thermal performance. Integrated temperature monitoring and MOV overvoltage protection make the PSI6300.257-L2 a well-engineered inverter for consistent industrial service.
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The PSI6300.257-L2 medium-frequency inverter is manufactured by Bosch Rexroth Indramat for the PSI Frequency Inverters series. The unit serves as a power converter that supplies adjustable medium-frequency energy to induction heaters, resonant welders, and other metallurgical loads found in automated cells. By modulating the incoming high-voltage mains supply, it delivers precise current and frequency profiles required for rapid thermal processing.
A cabinet power loss of 200 W at maximum output indicates the amount of heat that the air-cooling channel must remove. The power stage switches at 1 kHz, producing a smooth waveform suited to magnetic loads. The control electronics draw 24 V DC from a dedicated supply, isolating the logic circuits from the main bus. The line terminals accept 480–690 VAC, allowing direct connection to compatible plant power systems. Under peak demand, the inverter can deliver 800 A to the work coil. Temperature monitoring is integrated, and the controller limits current if the inlet air exceeds 45 °C or the internal ambient temperature reaches 55 °C. Fan-forced air cooling removes heat from the power electronics during operation. A metal-oxide varistor network protects the DC link from overvoltage events. The power lugs accommodate 50 mm² conductors, while auxiliary wiring terminates on 35 mm² spring clamps. Synchronization and diagnostic timing are handled through a PROFIBUS slot timer.
For installations coupled to a PSG 3100 transformer, the secondary circuit can withstand up to 36 kA of prospective fault current, while normal operation requires 110 A of system current. The inverter can be mounted at elevations up to 2000 m without derating the semiconductors or magnetic components. Its housing has an IP20 degree of protection, so the unit must be installed inside a suitable enclosure to prevent contact with live parts. The enclosure must also provide adequate airflow around the inverter and preserve the required clearances for its power conductors. Protective devices and busbars should be selected according to the available fault current and the connected transformer circuit.
