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.