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General Instruction for Three Phase Electrical Actuators

General Instruction for Three Phase Electrical Actuators


Sdtork supplies actuators as per relevant National and International standards. As a minimum requirement, Sdtork products are made to the following standards:

  • Electric Motor operated actuator IS9334
  • Degree of protection provided by enclosures at low voltage switch gear & control gear IS2147
  • Degree of protection provided by enclosures at low voltage switch gear & control gear IS13247
  • AC contactors for voltages not exceeding 1000 volts IS2959
  • Degree of protection provided by enclosures for rotating electrical machinery IS4091
  • Specification for motor rating electrical machines IS4722
  • Flame Proof IS2148, 2004.

STANDARD FEATURES & ACCESSORIES

  • Position Limit switches [1 NO + 1 NC] 2 nos. change-over type
  • Travel Limit switches [1 NO + 1 NC]
  • Hand wheel
  • Wide speed range
  • Easy maintenance
  • Hammer blow effect
  • Local position indicational

OPTIONAL ACCESSORIES, CONTROLS & PROTECTIONS

  • Extra Limit switches
  • 2 NO + 2 NC contacts for travel limit switches
  • 2 NO + 2 NC contacts for torque Limit switches
  • 'H' class insulation for motor
  • Side mounted hand wheels to reduce rim pull effort, geared hand wheel is provided
  • Remote position indicator Potentiometer, Current position transmitter, Non-contact type position transmitter
  • Remote position indicator Analogue / Digital
  • Power supply
  • Push button station
  • Blinker switch
  • Integral starter
  • Control panel
  • Electronic Positioner
  • Single phase protection
  • Special control / protection features as per application demands can also be given for specific requirements.

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