The 'A' Range Syncroset actuator comprises a 3 phase motor, reduction gearing, torque and limit switch mechanism and a valve position indicator. It does not include motor control gear.

• Single stage worm and wheel gearbox with lost motion hammerblow effect (omitted on 'M' Range)
• Oil bath lubricated and sealed
• Detachable drive bush for machining by customer
• 3 phase, singe phase or DC, 15 minute rated, class F insulated motor with winding thermostat
• Suitable for ambient temperatures in the range -30 to +70 deg C
• The IP68 certified watertight enclosure, is also available with certified explosionproof enclosures including:
• Canadian Standard Association (CSA) Class 1 Group D Div 1
  Factory Mutual (FM) Approved Class 1 Groups B, C, and D to NEC Article 500
  CENELEC EExdIIBT4, EExdeIIBT4, EExdIIB H2T4, EExdeIIB H2T4

Nuclear Certified Actuator

The 'NA' version of this actuator is designed and qualified to IEE382 1996 for use in 'active' duties inside the containment of a nuclear reactor