AC 480V 3 Phase Circuit Protection Voltage Monitoring Relay 5 Indicators Heavy Duty Phase Failure Sequence Protection Relay Stable for Air Compressors industrial SPECIFICATION1 inch NPT Male 3/4

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AC 480V 3 Phase Circuit Protection Voltage Monitoring Relay 5 Indicators Heavy Duty Phase Failure Sequence Protection Relay Stable for Air Compressors industrial SPECIFICATION1 inch NPT Male 3/4AC 480V 3 Phase Circuit Protection Voltage Monitoring Relay 5 Indicators Heavy Duty Phase Failure Sequence Protection Relay Stable for Air Compressors Feature: 1. Use 5 indicators to indicate: normal, phase loss (voltage three phase unbalance), reverse phase, overvoltage and undervoltage. 2. The base of the protector adopts a rail type with two screw holes, which can be directly installed separately or mounted on the HT35 rail. 3. Phase loss