MDF 20-22-12

The operators of the MDF series are suitable for 3-phase current (3-phase alternating current) and, with a complete series from 100 to 2000 Nm in this range, offer the right solution for every on-site situation. In addition, special solutions for individual customer requirements can be realized flexibly and quickly at any time.
SKU
P5944
Available in many variants
MDF 20-22-12

Features:

  • Rolled worm shaft
  • Emergency operation via emergency hand crank "KU" (1-sided) or "KU-KU" (2-sided up to 420 Nm & 12 rpm) or emergency hand chain "KE
  • Easy conversion from crank to chain
  • Integrated safety gear, independent of position and speed, maintenance- and wear-free, integrated cushioning
  • Pendulum foot support
  • Supply: 230/400 V/3~/50 Hz
  • Thermal protection in the motor winding
  • For gate systems with above-average switching operations, select an operator with increased motor duty cycle (HD).
  • Pluggable connectors
  • End position setting via electronic absolute encoder (AWG) or mechanical limit switches (MEC)
  • Version with external control, can be combined with extensive control program. Supply: 230/400 V/3~, frequency: 50/60 Hz, control voltage: 24 V-DC
  • When the output speed is increased (operation with frequency inverter), the output torque is reduced. In this case, the following applies: An increase of the output speed by 10 % causes a reduction of the output torque by 5 %.
  • Special designs such as other voltages and frequencies, different output speeds, higher degrees of protection and hollow shaft Ø on request
  • ATEX version available (see chapter "Operators for hazardous areas")
  • For temperature ranges below -20 °C there is suitable oil and electric heating on request
MDF 20-22-12
Product descriptive data
Connection type Pluggable
Continuous sound pressure level (max.) [dB(A)] 70
End position system Absolute encoder Mechanical limit switches
Safety catch integrated Yes
Foot attachment type Pendulum foot support
Gearbox Rolled worm shaft Double bearing worm shaft
Emergency operation Emergency hand crank (KU) Emergency hand crank on engine and gearbox side Emergency hand chain (KE)
Protection class IP54
Overload protection Thermal protection 140 °C
Application area
Operation with CS 320 FU (frequency converter 400 V/3~) 1,5 kW
Temperature (min./max.) [°C] -20/60
Operation with CS 320 FU (frequency converter 230 V/1~) 1,5 kW
Performance data
Output torque [Nm] 220
Output speed [1/min] 12
Torque of the safety catch (max.) [Nm] 784
Output revolutions (max.)** 18
Cycles per hour (max.)* 20
Motor power [kW] 0.75
Electrical data
Operating voltage [V] 400 V/3~ 230 V/3~
Operating voltage type Three-phase current
Power factor cos phi 0.75
Nominal frequency [Hz] 50
Control voltage [V] 24 V-DC
Rated current in star connection [A] 2.80
Rated current in delta connection [A] 4.80
On-site fuse protection (mains operation 230 V/3~) [A] 16
On-site fuse protection (mains operation 400 V/3~) [A] 16
On-site fuse protection (FI operation 400V/3~) [A] 16
On-site fuse protection (frequency converter operation 230V/1~) [A] 16
Dimensions and weights
Dimension A1 - optional [mm] 120
Weight [kg] 19
Dimension A1 [mm] 145
Dimension B - KE [mm] 191
Dimension B - KU [mm] 114
Dimension C1 [mm] 110
Dimension C - KE [mm] 463
Dimension C - KU [mm] 421
Shaft support [mm] 30
Shaft mounting (optional) [mm] 25 25.4 31.75 32 mm hexagon (HEX) 35
Dimension A - KE [mm] 300
Dimension A - KU [mm] 300
Marantec Marienfeld GmbH & Co. KG
Remser Brook 11
33428 Marienfeld

 

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