ZGLEDUN Series LD-MD SPD Surge Protection Devices with the following features.
• High-energy surge protection
• Remote signal alarm interface
• Failure detection indicator
• Standard modular installation
• Built-in instantaneous overcurrent circuit breaker
• Pluggable replacement modules
• Single module maximum discharge current 20-80KA (8/ 20μs),
• Response speed: 10-9s level.
LD-MD series T2 surge protector SPD is designed according to IEC and GB standards. It has a strong surge discharge capacity and the maximum discharge current per unit is 20-80KA (8/20μs). It’s suitable for all levels of protection of low-voltage power distribution systems, and can be selected according to different power distribution systems (TT/TN/IT) with multiple combinations.
Application Places:
LD-MD-80, LD-MD-60: The main power distribution cabinet of the building where the power line is shielded and ground input, the distribution box with outdoor input and output lines in the building, and the outdoor power distribution cabinet/distribution box
LD-MD-40: Building floor distribution box
LD-MD-20: Distribution boxes for important electrical equipment in buildings, such as computer room distribution boxes and residential distribution boxes
| The Main Technical Parameters | ||||
| Model | LD-MD-20 | LD-MD-40 | LD-MD-60 | LD-MD-80 |
| LD-MD Port | 1 Port | 1 Port | 1 Port | 1 Port |
| LD-MD Type | Combination type | Combination type | Combination type | Combination type |
| Testing | II | II | II | II |
| Rated Voltage Un | 110V/220V AC50-60Hz | 110V/220V AC50-60Hz | 110V/220V AC50-60Hz | 110V/220V AC50-60Hz |
| Maximum Continuous Operating Voltage Uc | AC275V,AC320V,AC420V,AC440V | |||
| Standard Discharge Current In (8/20μs) | 10KA | 20KA | 30KA | 40KA |
| Maximum Discharge Current Imax(8/20μs) | 20KA | 40KA | 60KA | 80KA |
| Protection Level Up (8/20μs) | 1.5KV | 1.8KV | 2.0KV | 2.2KV |
| Fuse or Circuit Breaker/Backup Protector | 20/60KA | 25/60KA | 32/80KA | 32/80KA |
| Response Time tA | ≤25ns | ≤25ns | ≤25ns | ≤25ns |
| Dimension (mm) | 72x90x69 | 72x90x69 | 72x90x69 | 72x90x69 |
| Failure Indicator | Green: Normal Red: Failure | |||
| Installation Wire Cross-sectional Area mm² | 6-25mm2 | |||
| Installation | 35mm Standard Rail (EN50022/DIN46277-3) | |||
| Working Environment Temperature ℃ | -40ºC to 85ºC | |||
| Shell Material | Plastic complied with UL94V-0 | |||
| Protection Level | IP20 | |||
| Remote Signal Alarm | Normally Open/Normally Closed Electric Shock Terminal (optional) | |||
| Remote Signal Interface Wiring Capacity | Maximum 1.5mm² Single Wire/Flexible Wire | |||
| SPD Surge Protector Series LD-MD (T2 Level Lightning Protection 8/20 Waveform） | ||||
| Image | Model Number | Rated Current | Quantity Per Carton | Remark |
 |
LD-MD-10KA 4P | 5~10KA | 36 | 18mm |
| LD-MD-20KA 4P | 10~20KA | 36 | 18mm | |
| LD-MD-30KA 4P | 15~30KA | 36 | 18mm | |
| LD-MD-40KA 4P | 20~40KA | 36 | 18mm | |
| LD-MD-60KA 4P | 30~60KA | 36 | 18mm | |
| LD-MD-60KA 4P | 30~60KA | 24 | 27mm | |
| LD-MD-80KA 4P | 60~80KA | 24 | 27mm | |
| LD-MD-100KA 4P | 80~100KA | 24 | 27mm | |
1. Most of new products are guaranteed for 12 months from the date of delivery, some for 18 months;
2. All products sent for repair shall be guaranteed for 6 months after repair;
3. Paid repair service can be provided for products beyond the warranty period.
There Are Three Ways to Contact ELEMRO to Place Orders
1. You can proactively contact ELEMRO through social media apps such as WhatsApp, Skype, Viber, and Facebook:
2. You can fill in your requirements in the bottom right corner of the webpage, and we will contact you as soon as we receive the requirements;
3. You can also contact various ELEMRO offices for offline communication and cooperation. Click here for ELEMRO office information.
