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The crane cabinet QR series is equipped with the master controller is used to control and protect the AC cranes. - details see: https://www.machineto.com/crane-cabinet-control-cabinet-10201688

Usage:
QR series AC crane control cabinet, equipped with the master controller is used to control and protect the AC crane,2units hoisting mechanism wound rotor induction motor starting, speed, reversing and braking. The main circuit voltage and electrical control circuit is AC 50Hz, 380V.

Working conditions:
1. Altitude does not exceed 2000m.
2. Power supply of acceptable quality, the line voltage fluctuation range does not exceed the rated voltage ± 10%.
3. Vertical installation, cabinet inclination does not exceed 5 °.
4. Firmly installation, the cabinet does not horizontal or vertical moving relative to the main part during working.
5. Installation position of the highest vibration conditions: 5 ~ 13 Hz, the displacement is less than 1.5mm; 13 ~ 150 Hz, the vibration acceleration is less than 1.0g.
6. The surrounding medium is not explosive, no conductive dust and no corrosive gases which can damage metal and insulation corrosive gases.