Relay Specialties, Inc. - A World of Components Over 125,000 Part Numbers and Growing... Relay Specialties continues to distribute only the best. Enter your Part Number in the Part Search for any of the manufactures found on our Line Card. Enter Your Part Number Relay Specialties is one of the world's largest distributors of industrial electronic components specializing in relays, switches, circuit breakers, terminal blocks, timers, sensors, controls and thousands of other electromechanical components. We pride ourselves by offering technical expertise and off the shelf delivery. New Cynergy3