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MOA (52 020 - 52 026, 52 029)

Electric rotary multi-revolution actuators for nuclear power plants - Outside containment


Technical data

Type number52020520215202252024520255202652029
Tripping force [kN]       
Adjusting time [s/90°]       
Position-changing velocity[min-1]9-409-1009-8016-10045-63329-40
Working stroke[°]       
Supply voltage1x 230 V, 50 Hz       
24 V, 50 Hz       
1 x 110 V, 50 Hz       
3 x 230 / 400 V, 50 Hz
ControlTwo position On-Off

Three position       
Position sensingResistance transmitter (R)
Current transmitter (I)
Position interrupt
Torque-initated interrupt
Manual actuation
Explosion-proof design       
Type of enclosureIP 55IP 55IP 55IP 55IP 55IP 55IP 67
Weight - depending on design (Al/cast iron) and on motor [kg]35-3765-6868128-131210-21231817


Electric rotary multi-revolution actuators MODACT® MOA are designed for remote control of special valves installed in attended areas of nuclear power plants with reactors VVER or RBMK. The type series includes 5 sizes of electric actuators with tripping torque from 20 Nm to 2000 Nm. The actuators are suitable for controlling sliding valves and valves with nuts. For valves, the pitch angle of thread of the spindle nut must not be higher than 5°.

Files for download:

3D Model 52027zip18.17 MB
3D Model 52020-5zip1.47 MB