electrical device vs electrical relay

Other hyponyms of electrical device include aerial, antenna, transmitting aerial, attenuator, ballast, light ballast, battery, electric battery, bimetallic strip, brush, capacitance, capacitor, condenser, electrical condenser, cell, electric cell, circuit, electric circuit, electrical circuit, board, control board, control panel, instrument panel, panel, distributer, distributor, electrical distributor, electrograph, electrostatic generator, electrostatic machine, Van de Graaff generator, Wimshurst machine, filter, flasher, electrical fuse, fuse, safety fuse, inductance, inductor, jack, load, male plug, plug, Cottrell precipitator, electrostatic precipitator, precipitator, reactor, rectifier, relay, resistance, resistor, security, security measure, security system, Segway, Segway HT, Segway Human Transporter, solar array, solar battery, solar panel, spark arrester, plug, spark plug, sparking plug, suppresser, suppressor, transducer, transformer, transponder, zapper, crimping iron, hair crimper, current collector, light fitting, light fixture, luminaire.