We supply a wide range of relays for voltage and monitoring in 1-phase, 3-phase, AC and DC networks. Simple, 1-module designs perform basic functions, and 3-module designs for more accurate measurements in multiple ranges with galvanic separation of power supply from the measured circuit. 

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HRN-56

HRN-56

The relay monitors undervoltage, sequence and phase failure
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from £ 24.50 excl. VAT £ 35
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