MD models (4 Nm torque)

This compact quarter turn actuator may be directly coupled to either a 16 mm round or
10 mm square jack shaft or remotely mounted using an adaptor kit.

All motors are bi-directional under power and, is only available with the fail safe Enerdrive System which means the stroke may be limited to less than 90° mechanically.

The MD models are available with programable, multi signal, analogue or on/off floating control.
 Applications
  • Small dampers

  • Unit ventilators

  • 1/4 turn valves

  • VAV box control

  • Fan coils


    •  General Specifications
    Power supply:
    24VAC/30VDC

    Power consumption:
    Peak at start-up: 15VA to 20VA at 26VAC depending upon the Model.
    Operating at full Load: 6VA at 26VAC.

    Wire size & length:
    0.8 mm2 minimum, 7.6 m. maximum per actuator

    Electrical connections:
    15.9 mm & 22.2 mm knock outs, screw terminals

    Control signals:
    Digital motors (MDT):
    2 Wire/2 position and 4 wire/3 point floating
    Analogue (MDM):
    A) 2-10VDC; or B) 4-20mA

    Torque:
    4 Nm at rated voltage

    Direction & time of rotation:
    Reversible, 90 Sec / 0-4 Nm

    Ambient temperature:
    -18°C to +50°C






    Direction & time of rotation:
    Reversible, 90 Sec / 0-4 Nm

    Ambient temperature:
    -18°C to +50°C

    Fail safe (Enerdrive) rating:
    Models ending in 60 or 80: 4 Nm

    Enerdrive response time:
    70-80 seconds closure through 90°, 0-4 Nm depending upon the model

    Auxiliary switches:
    Models ending in 80: 2 mechanical, fixed at 10° & 80°

    Auxiliary switch rating:
    1 Amp resistive, 24VAC or 5 Amp resistive, 250VAC depending upon the model

    Electronic enclosure:
    UL recognized QMFZ2 fire rated 94V-0, IP42

    GearTrain enclosure:
    Die cast zinc with a steel base