SPD special backup protector, SPD (surge protector) that provides first-level and second-level equipment protection for the power supply provides professional backup protection. It is suitable for places that need to be installed in SPD lightning protection equipment, such as industrial and civil buildings, Power supply equipment in various industries such as electrical, communications, road traffic, petrochemical, etc.

Product Use

1. Realistic breaking of the passing power frequency current and lightning current can effectively protect the SPD from melting through and short circuiting due to abnormal transient overcurrent, and avoid serious fire accidents.

2. Selectively break the passing power frequency current and lightning current, effectively protecting the SPD from deterioration, causing the $PD starting voltage to drop below the power supply voltage and increasing the power frequency leakage current to avoid serious fire accidents.

3. When lightning flows through the SPD, this external disengagement will not be accidentally tripped, so that the lightning protection of electrical equipment is always in an effective state.

Product Features

1. This product adopts a gap-free structure;

2. Low residual voltage (In residual voltage = residual voltage of wires of the same length);

3. No error movements and no blind spots;

4. It has independent main circuit system, auxiliary system and trip system:

5. Complete specifications, meeting the requirements of matching in T1 and T2 level SPD;

6. 35mm clamping rail installation, meeting the installation needs around the world;

7. It has instantaneous/delayed trip function (optional function), and the trip current is accurate;

8. There is a test button to verify the integrity of the trip system at any time.