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The SPD is single-port type with electric shock protection, indoor fixed installation and voltage limiting type.
The SPD is equipped with a built-in disconnector. When the SPD fails due to overheating or breakdown, the disconnector can automatically disconnect it from the power grid and output an indication signal. The visible window shows white in normal operation and turns red after failure and disconnection.
1P+N, 2P+N and 3P+N are composed of 1P, 2P, 3P SPD and NPE neutral-earth protection modules, applicable to TT, TN-S and other power supply systems.
LYD6 series surge protector (hereinafter referred to as SPD) is applicable to AC 50/60Hz power supply systems such as TT, TN-S, TN-C, IT and TN-C-S with rated voltage up to 380V. It provides protection against transient overvoltages caused by indirect lightning, direct lightning and other surge disturbances. The product complies with GB18802.1, IEC61643-1 and other relevant standards.
| Model / Specification | LYD6-60 | LYD6-40 | LYD6-20 | |||||||||
| Maximum Continuous Operating Voltage Uc (VAC) | 420 | 385 | 320 | 275 | 420 | 385 | 320 | 275 | 420 | 385 | 320 | 275 |
| Voltage Protection Level Up (kV) ≤ | 2.5 | 2 | 1.8 | 1.6 | 2.0 | 1.8 | 1.6 | 1.3 | 1.8 | 1.5 | 1.3 | 1.2 |
| Maximum Discharge Current (8/20μs) Imax (kA) | 60 | 40 | 20 | |||||||||
| Nominal Discharge Current (8/20μs) In (kA) | 30 | 20 | 10 | |||||||||
| Response Time (ns) | <25 | |||||||||||
| Ambient Temperature | -40℃~+80℃ | |||||||||||
| Protection Rating | IP20 | |||||||||||
| Failure Indication | Green: Normal, Red: Failure | |||||||||||
| Remote Signaling Function | Available as Additional Order | |||||||||||
| Remarks | Other Uc values can be customized | |||||||||||
LYD6-20 is installed at the junction of LPZ1/LPZ2 and LPZ3 zones, with 2.5~35mm² stranded flexible copper wires for connection. It is suitable for residential distribution boxes, computer equipment, information equipment, electronic equipment and control equipment, or the nearest socket boxes.
LYD6-40 is installed at the junction of LPZ0B/LPZ1 and LPZ2 zones, with 2.5~35mm² stranded flexible copper wires for connection.
To prevent the failure of surge protectors from affecting the safe operation of the power grid, a matched LYSCB backup protector must be connected in series at the front end of each pole surge protector.
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