| Product name: | DB-1A,DDB1A type power lightning arrester (lightning arrester) | ||||||
| specification: | ![]() |
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| Category: | low-voltage electrical apparatus -- Low-voltage arrester | ||||||
| Price: | factory price | ||||||
| Brand: | Shanghai | ||||||
| Place of Origin: | China | ||||||
| Available Quantity: | batch | ||||||
| delivery cycle: | Spot goods (or inquire by telephone) | ||||||
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Product use: This product is suitable for protection against overvoltage caused by induction, operation, and other reasons in LPZ1 and LPZ2 lightning protection zones, 220/380V single-phase and three-phase distribution systems.
Industries of use: telecommunications industry, broadcasting industry, petrochemical industry, transportation and highway industry, financial industry, and government agencies at all levels.
Product features: large flow capacity;
Residual voltage (<1.2kV);
Design of L-N and N-PE protection modes;
Current equalization technology;
Automatic fault disengagement (lightning protection unit).
| project | Technical performance |
| Working Voltage | 220/380V AC50Hz |
| Voltage sensitive (1mA) | 620V±10% |
| 8/20 μ s nominal discharge current | 20kA |
| 8/20 μ s maximum discharge current | 60kA |
| Residual pressure (8/20 μ s) | <0.9kV |
| protected mode | L-N、N-PE |
| wiring method | Terminal connection (2.5-10mm2) |
| Installation method | Fixed installation |
| working environment | Temperature -40 ℃~+80 ℃, relative humidity ≤ 95% |
| Dimensions (length x width x height) | 90mm×150mm×70mm |
| model | circulation KA |
Dimensions (mm) Width x Thickness x Height | |
| DB-1 Type A | 20/60 | 172×127×80 | |
| 40/100 | 210×178×80 | ||
| DB-1 B (Excellent) type | 20/60 | 360×250×500 | |
| 40/100 | 360×250×500 | ||
| DB-1 C-type 50KVA | 20/60 | 500×300×700 | |
| 40/100 | 500×300×700 | ||
| DB-J3KVA The following access networks are used |
DDB-J1 single-phase | 20/60 | 215×130×80 |
| DDB-J2 single-phase | 40/100 | 215×130×80 | |
DB-1A, DDB1A type power lightning arrester (lightning arrester)