PSI6300.336-W1 Bosch Rexroth Indramat
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MPN: R911327095
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The Bosch Rexroth Indramat PSI6300.336-W1 is a medium frequency inverter from the PSI Frequency Inverters series. It supports a mains voltage range of 400 to 480 VAC and delivers an output current of 800 Amps. This inverter uses water cooling with a flow rate of 4 liters per minute and offers IP20 protection.
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Product Description:
The PSI6300.336-W1 is a medium-frequency inverter produced by Bosch Rexroth Indramat for the PSI Frequency Inverters series. Installed in automated welding, brazing, or induction-heating cells, it converts factory mains power into a regulated medium-frequency output that can energize high-current secondary circuits. The unit combines a water-cooled power bridge with an INTERBUS timer, allowing process controllers to trigger precise energy windows that match motion cycles, temperature ramps, or material feed rates in repetitive manufacturing.
Incoming three-phase power at 400–480 VAC is rectified and inverted to the commanded medium frequency. During continuous operation, the inverter provides 800 A to the load. A switching rate of 1 kHz limits current ripple while controlling IGBT losses. The control electronics draw power from a separate 24 V DC rail. The enclosure has an IP20 rating and must be mounted inside a sealed panel. Installation requires 100 mm of vertical clearance for cable routing and airflow. The unit releases 110 W into the cabinet air, while the liquid circuit removes 420 W from the power section. MOV arresters provide overvoltage protection, the main terminals accept 50 mm² conductors, and auxiliary wiring can use 35 mm² conductors. The mains side draws 110 A RMS, with synchronization handled through the INTERBUS interface.
Cooling is provided by a water-cooled heat sink attached to the power modules. Facility water flows at 4 L/min and enters at 30 °C through M16 × 1.5 ports. Maintaining this flow allows operation at ambient temperatures up to 55 °C. The secondary-circuit current can peak at 36 kA during short welding pulses. The control system monitors coolant flow and system current and can adjust pulse timing through the INTERBUS timer to prevent thermal runaway. Hoses must remain clear of live busbars, and the power terminals must remain accessible for installation and maintenance.
Frequently Asked Questions about PSI6300.336-W1:
Q: What is the mains voltage range for the PSI6300.336-W1 frequency inverter?
A: The PSI6300.336-W1 inverter supports a mains voltage range of 400 to 480 VAC.
Q: What cooling method and minimum water flow does the PSI6300.336-W1 require?
A: The PSI6300.336-W1 model uses water cooling, requiring a flow rate of 4 l/min.
Q: What is the maximum output current supported by the PSI6300.336-W1?
A: This frequency inverter can handle an output current of up to 800 A.
Q: What type of overvoltage protection does the PSI6300.336-W1 include?
A: The PSI6300.336-W1 uses MOV for overvoltage protection.
Q: What is the degree of protection for the PSI6300.336-W1 inverter?
A: The degree of protection provided by this model is rated at IP20.
