171478 ⎘
Arrangements for measuring currents or voltages or for indicating presence or sign thereof; Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the components employed using electromagnetic relays, e.g. reed relay
FENCE TESTER
#2Device for detecting electrical currents on or in the vicinity of electrical conductors
#3Device for detecting electrical currents on or near electrical conductors
#4Power control apparatus, control method for power control apparatus, power control system, and control method for power control system
#5Automatic door switch inspection
#6Transformation relay and battery voltage measurement system using same
#7Electronic switching and protection circuit with test mode function
#8Wetting current diagnostics
#9Protection device
#10Dc Current Sensor