ELECTRICS FOR INDOOR OPERATION
As standard, the crane’s electrics are installed on a maintenance platform. The IP 54 protection type frequency converter is installed next to the switch cabinet.
The advantage of this arrangement is that ambient temperatures of up to 55o
C present no problems in terms of heat. Higher operating temperatures would arise inside the switch cabinet due to heat loss of around 5 - 10o
which would significantly reduce the lifespan of the drive.
The switch cabinet does not need to be cooled or ventilated due to this design and the corresponding ventilation or cooling maintenance expenses for changing filter pads or maintaining the air-conditioning unit do not apply.