electrical switches, miniature circuit breakers and disconnectors, molded case circuit breakers and disconnectors, air circuit breakers and air break switches, earth leakage circuit breakers and switches, load shedding units, time switches, bell transformers, contactors and relays, accessories for panel boards and load centers; namely, bell transformers, time switches, mounting rails, earth bars, neutral bars, bus bars, safety blanks and escutcheon blanks; equipment for power distribution; namely, mounting rails, earth bars, neutral bars, bus bars, safety blanks and escutcheon blanks; enclosures for circuit breakers, isolators, lightning arrestors and parts therefor