text.skipToContent text.skipToNavigation

Double Center Side Break Switch, Aluminum (ATR)

The ATR is a three insulator, double center break outdoor air disconnect switch constructed primarily of aluminum. Operation is accomplished by the rotation of all three insulators. Proven by years of field experience, this switch takes full advantage of unique construction methods to provide both simple operation and long-term dependability.
  • Fully Compliant with ANSI/IEEE C37.30.1
  • Double Center Break Operation
  • High Mechanical Advantage Operation
  • 145kV – 550kV
  • 2000A – 5500A
  • Rigid Blade Mechanism
  • Laminated Shunt Hinge
  • Double Row Stainless Steel Bearing
  • Operated with Swing Handle, Gear Box or Motor Operator

Product Details


Application The ATR is commonly used in threephase line or substation applications such as transformer or line disconnecting, breaker isolating, bypassing or bus sectionalizing. The narrow mounting footprint makes the unit versatile for direct pole configurations as well. Operation of the ATR may be accomplished by either manual control or by motor operator.
Material Aluminum
Type Double Center Break

Electrical Ratings

Current Rating
  • 1200 A
  • 2000 A
  • 3000 A
  • 4000 A
  • 5500 A
Voltage Rating
  • 145 kV
  • 170 kV
  • 245 kV
  • 362 kV
  • 550 kV

Resources and Downloads