NJB1-Y single phase voltage relays (hereinafter the relay for short) are applied in AC 220V, 110V, 24V, frequency 50Hz (or 60Hz) and DC 24V control circuits as single phase overvoltage protection or under-voltage protection and indication elements, making or breaking circuits as intended operating values and time. The product are in compliance with requirements of standard IEC 60947-5-1
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