Products

High-Voltage Dead-Tank Circuit Breakers

Design Features

Internal Tank Heater PAB’s internal tank heater design provides the most efficient means of heating the interrupter’s SF6 gas. Tank heaters are installed in the interrupter tank to directly heat the SF6 gas instead of being mounted on the outside of the tank as typically done with inefficient conventional tank heater systems. Within a few minutes, the heater element can be easily exchanged without opening the tank or removing the SF6 gas.

Integral Particle Trap Improved dielectric performance over the life of the circuit breaker is ensured because of PAB’s patented particle trap design. Each breaker is supplied with a particle trap integral to the interrupter’s enclosure. The trap ensures that any particles or arc by products generated during breaker operation are electrically shielded at the enclosure’s lowest point.

Certified to the Industry’s Most Stringent Standards: PAB’s breakers are not grandfathered to older, less stringent requirements
as most breakers on the market are. PAB’s breakers have been certified beyond current requirements to the more stringent draft
standards. PAB’s breakers offer tomorrow’s higher performance today.

PB245

The PB245 family incorporates an SF6 puffer interrupter certified at 290kV that is driven by our high-speed, high-energy, hydraulic mechanism.

  • 123kV through 245kV class
  • 63kA interrupting current
  • 2-cycle, hydraulic mechanism
  • SF6 puffer interrupter technology
  • Up to 5000A continuous current

PB245 SPEC SHEET PDF

PB145

The PB145 family utilizes proven arc-assisted interrupter technology coupled with a reliable spring mechanism.

  • 123kV through 170kV class
  • 40kA interrupting current
  • 3-cycle, spring-spring mechanism
  • SF6 self-blast interrupter technology
  • Up to 3000A continuous current

PB145 SPEC SHEET PDF

PB872

The PB72 family packages PABís arc-assisted interrupter and spring-operating mechanism in a compact footprint.

  • 72kV class
  • 40kA interrupting current
  • 3-cycle, spring-spring mechanism
  • SF6 self-blast interrupter technology
  • Up to 3000A continuous current

PB72 SPEC SHEET PDF