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DuraDrive Direct Coupled Actuators are designed to be used in both damper and valve control applications. The following general instructions are for damper applications, refer to the Applicable Literature table for valve literature. The MS40-717X series actuators are over the shaft spring return actuators compatible with 2 to 10 Vdc or 4 to 20 mAdc1 control signals.

  • 150 lb-in (17 N-m) rated torque
  • NEMA Type 4 housing (IEC IP56)
  • Custom automatic current sensing motor control provides extended reliability and repeatable timing
  • Direct coupled to the damper shaft with dual industrial hardened universal mounting clamps
  • Integral wiring for proportional control by 2 to 10 Vdc or 4 to 20 mAdc1
  • Clockwise or counterclockwise spring return is determined by actuator mounting position
  • Accurate 92° travel digitally controlled
  • Integral position indication scale
  • Rugged die-cast housing
  • Oil immersed gear train provides continuous lubrication
  • Integral transformer for high voltage systems
  • Rated for operating temperature up to 140F
  • Five year warranty
  • MS40-717x series actuators can be doublemounted (gang mounting) to accommodate high torque application requirements (2 to 4 actuators).
  • Position feedback signal
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Manuals (1)
Fail Safe Mode:

Spring Return

Actuator Type:





150 lb-in


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