Description
220V 5A Automatic Factory School Bell Timing Switch Controller 40 Groups Timer Time Switch Relay DescriptionSpecification:Internal powerºBuilt-in battery, no need to replaceWorking modeºManual, Automatic switchProgrammable numberº40Ring time adjustmentº1 second -99 secondsTime control rangeº1min-168hTiming errorº≤1 second/dayOutput modeºA set of transformationsContact capacityºUe/Le: ac-15 220V/3ALth:16AElectrical lifeº100,000 timesMechanical lifeº300,000 timesAmbient temperatureº-10 ° C to 45 ° CPowerº≤2WInstallationºDevice type, Guide rail typeScope of application:–NKG-4 time control bell ringing instrument is mainly used for ac 50Hz, rated control power supply voltage to 220V and below as a time control element in the circuit, according to the predetermined procedure to open or tear the circuit used. For example: automatic control of school bell timePackage Included:1 x Timing control switch
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