Description It is an indispensable protection product for the normal working voltage of the maintenance equipment in the operation of industrial equipment. Installation : The base of the protector adopts the rail type, and there are two screw holes in the structure, which can be directly installed separately or installed on the HT35 rail. Indicator light: Indicated by 5 indicators: normal, lack of phase (voltage three-phase unbalance), reverse phase, overvoltage, undervoltage. Voltage unbalance protection: It refers to a protection measure that the three-phase voltage imbalance will affect the safe operation of . When the three-phase unbalance rate x100% 10%, the protection delay 2S action. Phase loss protection: When the protected line is in the running state or non-operating state, any phase failure occurs, and the delay is 2S. Reverse phase protection: A protection measure to prevent L1, L2, L3 three-phase AC phase sequence from being connected incorrectly, delay 2S action. Overvoltage protection: It means that the voltage of the protected line is higher than the set value, and the delay is 3~8S, and the recovery is 6~20VAC. Undervoltage protection: It means that the voltage of the protected line is lower than the set value, the delay is 3~8S, and the recovery is 3~20VAC. Widely used in air compressors, electric motors, distribution boxes, water pumps, oil pumps, central air conditioning units, electric control boxes, power distribution cabinets, , etc. Such as central air conditioning compressor protection, power monitoring of elevators, phase loss of pumps and oil pumps, reverse phase protection, etc. Material:Plastic + metal colour:white Package Contents: 1 * phase sequence protector Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.