257AV代理商/供应商_257AV PDF资料/技术规格

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深圳市芯幂科技有限公司
电话:133-02539501 9年
133-0253950113302539501张小姐深圳市福田区华强电子世界1号楼10A824012301011808
257AW
AT　
DIP-32　
18+　
6520　
原装正品

深圳市芯幂科技有限公司
电话:133-02539501 9年
133-0253950113302539501张小姐深圳市福田区华强电子世界1号楼10A824012301011808
257AY
AT&T　
DIP-32　
18+　
6520　
原装正品

深圳市芯幂科技有限公司
电话:133-02539501 9年
133-0253950113302539501张小姐深圳市福田区华强电子世界1号楼10A824012301011808
257B
LUCENT　
DIP-32　
18+　
6520　
原装正品

257B PDF资料

257B技术规格

Alternate Mfr Part Number98083702
Contact FormSPDT
Control Voltage208/240
Current Rating10 A
FunctionPhase Monitor
Measuring Range160-240 VAC
Monitoring FunctionPhase Monitor
Mounting TypeSocketable
Number of Pins8 Pin
Primary TypeMonitoring Relays
Product DescriptionContinuously monitors 3-phase power lines for abnormal conditions. When properly adjusted, the monitor will detect phase loss on a loaded motor even when regenerated voltage is present. This device consists of a solid-state voltage and phase-angle sensing circuit, driving an electromechanical relay. When correct voltage and phase rotation are applied, the internal relay will energize. A fault condition will de-energize the relay. When the fault is corrected, the monitor will automatically reset (a manual reset version is also available). Does not require a neutral connection and can be used with Wye or Delta systems. Voltage ranges are sufficiently wide to allow for proper adjustment to existing conditions. Both "TRIP" and "NORM" condition indicators are provided to aid an adjustment and system trouble-shooting.
Product HeaderSolid State 3-Phase Monitor Relay
Relay TypeElectromechanical
Series257 Series
StandardsCSA, UL
Supply Voltage208-240 VAC
Termination8-Pin Octal
UPC Code662917001657
Voltage Rating240 VAC