SPD surge protective device, protect against lightning surge voltages in solar system (photovoltaic power supply system).These units must be installed in parallel on the DC networks to be protected and provide common and different modes protection. Its installed location are recommended at both ends of the DC power supply line (solar panel side and inverter/converter side), especially if the line routing is external and long. High energy MOVs equipped with specific thermal disconnectors and related failure indicators.
The protector has over voltage protection, under voltage protection and other functions. Low power consumption and long mechanical life.
The main feature is that the line has overvoltage or under voltage, overcurrent condition, the product can cut off the power supply instantaneously, protect the electrical equipment from damage; when the line voltage returns to normal, the protector can automatically and normally.
It is mainly used for the protection of over-voltage, under-voltage or over-current in the distribution line of residential household box or the protection of single-phase power equipment.
Suitable for single-phase AC voltage 230V, 50/60Hz, rated working current 63A and below users or loads.
After the overcurrent exceeds 5 times within the specified time, the protector lock will not automatically restore the power supply. You must manually press "SET" to unlock the power supply, which can effectively protect the frequent opening and closing caused by not releasing the overcurrent in time. Damage to the device.