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Product Name:Three phase OV & UV
Introduce:The relay can detect the imbalance between three-phase over voltage, under voltage, phase sequence, phase loss and phase voltage; internally it is equipped with an alarm buzzer, upper-limit and lower-limit output relays; it also works as a digital three-phase AC voltmeter. Three installation methods are available:open-hole mounting , guide rail mounting and fixing by screws at the base.Measurement range:0-500V , 55-500VAC


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