PSI6100.143-L1 Bosch Rexroth Indramat
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MPN: 1070084211
The Bosch Rexroth Indramat PSI6100.143-L1 is a medium frequency inverter from the PSI Frequency Inverters series. It features a maximum output current of 400 Amps and operates with a mains voltage range of 400 to 480 VAC. The inverter supports air cooling, offers IP20 protection, and has a maximum ambient temperature of 55°C.
Internal Product Review
The PSI6100.143-L1 is a medium frequency inverter engineered for stable operation on 400 to 480 VAC mains with air-cooled thermal management. IP20 protection and 110 A continuous thermal current support dependable integration in controlled industrial enclosures. A 400 A maximum output current makes the unit a strong choice for demanding inverter applications.
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Product Description:
The PSI6100.143-L1 medium-frequency inverter is produced by Bosch Rexroth Indramat within the PSI Frequency Inverters series. The unit serves as a cabinet-mounted power stage that transforms the plant's three-phase supply to a controlled medium-frequency output suitable for induction heating, resonant converters, and other automation equipment that needs precise energy dosing. It forms the electrical interface between the mains and the load, executing switching sequences issued by the machine control.
The inverter accepts a mains window from 400 – 480 VAC and chops it against an internal carrier of 1 kHz, producing the frequency spectrum required by the load. At steady state, the power section conducts a continuous thermal current of 110 A, while peak demands are handled by an output rating of 400 A. Cabinet heat dissipation starts at 69 W under standby conditions, rises to 170 W at maximum power, and reaches a design ceiling of 360 W that is removed by an air-cooled path. Logic and auxiliary devices are served by a 24 V DC control supply that also powers the 24 V timer circuit integrated in the drive. Field wiring is landed on screw terminals that accept 35 mm² conductors, with a maximum lug size of 50 mm², and the enclosure carries a protection class of IP20, so it must be mounted inside a closed panel.
For network protection, surge energy on the DC link is shunted through an MOV assembly, and the secondary winding can withstand fault currents up to 20 kA without damage. The unit maintains full functional accuracy up to 55 °C ambient temperature and can be installed at elevations to 2000 m before derating becomes necessary. Because it is cooled by forced internal air, no external coolant plumbing is required, and altitude or temperature adjustments are limited to fan speed control. Its classification in the medium-frequency range permits efficient coupling to inductive loads while the continuous operating profile is governed by the stated thermal and electrical limits.
