Product Description:

The 11.F0.R11-3429 control rack is manufactured by KEB and belongs to the F0 Combivert Control Cabinets series. As a drive cabinet, it supplies, protects, and coordinates three-phase induction motors up to medium power ranges inside automated machinery. The unit integrates fusing, thermal monitoring, and voltage conditioning so that connected drives can maintain speed regulation, torque production, and safe shutdown within a single enclosure on the plant floor.

This cabinet interfaces with the mains and the motor through its electrical ratings. A three-phase input at 400 V nominal allows direct connection to common European industrial networks. The inverter section delivers up to 5.2 kVA and a continuous phase current of 7.5 A, which supports motor shafts drawing steady mechanical power without derating. Motor sizing is capped at 3 kW, which sets a clear limit for connected loads. An enclosure classified to IP20 prevents accidental contact with live parts when installed inside a switchboard. Protection is completed by a 20 A mains fuse, a 0.4 A control-circuit fuse, and an internal board over-temperature trip set to 70 °C. A minimum conductor size of 2.5 mm² keeps current density acceptable under continuous duty.

Additional safeguards address transient events and installation constraints. The DC link opens at an overvoltage of 800 VDC and drops out at an undervoltage of 380 VDC, preventing component stress during supply swings or regeneration. A 20 A intermediate fuse isolates the converter stage if fault current rises above the output path rating. The cabinet can be mounted up to 3000 m above sea level without performance derating, which supports installations in high-elevation facilities. A power-fail delay of 40 ms rides through short mains gaps, while a rack weight of 4 kg allows easy handling during panel assembly.