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Home > Products >> Three-phase voltage relay


Product: Three-phase over voltage and under voltage relay
Abstract: 1.Installation method:Open-hole mounting;
2.The size of the hole:91 mm x 45 mm
3.Function:Three-phase over voltage and under voltage protection
4.Measurement range:0-500V or 55-500V 

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1. Product features
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.

2.The panel keys are used for setting the values of various voltages and the delayed action duration of the output replay; for the resetting of the voltage relay, two modes are optional, namely, automatic mode and manual mode.

3.The window in the panel displays the actual voltage detected, the various phase voltages could be viewed by switching the keys. When it is normal, it displays the setting values of the over voltage and the under voltage, when it is malfunctioning, it displays the error code.
Part of the functions and parameters could be added or modified according to the customer's requirements.


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