ESL POWER SYSTEMS

ELECTRICAL DEVICES, NAMELY, ELECTRICAL PLUGS, CONNECTORS, RECEPTACLES, EXTENSION CORDS, TRANSFORMERS, POWER DISTRIBUTION UNITS, SAFETY-INTERLOCKED MODULES FOR MAINTAINING ONLY ONE OF A PLURALITY OF POWER SWITCHES IN AN ELECTRICALLY CONDUCTIVE STATE AT ONE TIME, MULTI-GANG ASSEMBLIES, NAMELY, A PLURALITY OF ELECTRICAL SWITCHES CONTAINED IN ONE MODULE, SWITCHES, REEFER SHARING UNITS, PHASE TESTERS