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AKH 回转和起重电机
AKH 回转和起重电机
Specifications
Shaft height: 112 to 450 mm
Power: up to 350 kW
Speed range: up to 3.000 U/min
Duty cycle: S1
Cooling: IC 411 (self-ventilated)
Voltage: 400 V / 50 Hz
Insulation class: F
Mounting: IM B3 / B5
Degree of protection: IP 54
Vibration severity grade: A
Ambient temperature: 20 to 40 °C
Installation altitude: up to 1.000 m
Options of electrical design
AC motors with slip ring rotor
Rated power for short term operation (S3)
Efficiency classes IE 2, IE 3, (IE 4)
With external fan
Dimensioning as 2, 4, 6, 8, 10, 12, 24 or 36-pole motors (167 to 3000 rpm at a 50 Hz-mains)
Pole-changing motors (Dahlander) 4/2, 8/4, 12/6 –pole
Pole-changing motors (separate winding) 4/2 to 36/2, 6/4 to 36/4, 12/4/2 to 36/4/2
Special voltages and -frequencies
Insulation class H
Higher ambient temperature and installation altitude over 1.000 m
Winding temperature monitoring by thermo switch, PTC resistor or Pt100
Anti-condensation heating
