Pennsylvania Breaker LLC (PAB) is the only US owned manufacturer of high voltage breakers and has established a 90,000 ft2 design, test, and manufacturing facility in the Pittsburgh, PA area. The facility is located within the 1.2 million ft2 Pennsylvania Transformer Technology Inc. (PTTI) factory in Canonsburg, PA and recent renovations include upgrades to the W.E. Kerr High Voltage Test Center and the addition of state-of-the-art production tooling. The facility will support design, testing, and manufacturing of circuit breakers from 72.5kV to 550kV, including interrupters and mechanisms. A partner of PTTI, PAB was formed to serve USA users of high voltage breakers with products designed to ANSI/IEEE standards for typical USA applications (60Hz, high fault currents, high X/R, long lines) and with USA based expertise and application support.