Breaker History 101

Westinghouse started making load break switches in 1950. Popular switches were 5–15 kV. The early switches were called load break fusible (LBF). Westinghouse made the next generation of switches, Westinghouse load interrupters (WLI), though 1980. Cutler Hammer also made load interrupters. Cutler Hammer now makes medium-voltage switchgear (MVS). It is available in voltages of 5–15 kV and 38 kV. Circuit Breakers Sales NE, Inc. stocks these different generations of switches. […]

Read More… from Breaker History 101