2021 New Style Switch Operating Mechanism - SPD Surge Protective Devices T1 Level Graphite Core 10/350μs, Surge Protector ZGLEDUN Series LD-MD , Surge Arrester Lightning Protector – Elemro

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2021 New Style Switch Operating Mechanism - SPD Surge Protective Devices T1 Level Graphite Core 10/350μs, Surge Protector ZGLEDUN Series LD-MD , Surge Arrester Lightning Protector – Elemro Detail:

LD-MD series primary surge protective device (SPD) is designed according to IEC and GB standards. It is applied to the first-level surge protection of the power supply system. The SPD uses a standard 35mm rail type installation method.

The LD-MD series T1 level surge protector has a high lightning current discharge capacity. The maximum impulse current of a single module can reach 50KA (10/350μs), which can prevent various surges including direct lightning. It is applied to be the first-level surge protection device in power supply equipment systems in the areas of higher risk of lightning strikes. It can be combined for single-phase/three-phase power supply lines.

Application Sites:

◆General power distribution panel in the building

◆Overhead input distribution box in the building

◆Outdoor power distribution cabinet/distribution box

The Main Technical Parameters
Model	LD-MD-A12.5	LD-MD-A15	LD-MD-A25	LD-MD-A50
SPD Port	1 Port	1 Port	1 Port	1 Port
SPD Type	Voltage limiting type /Voltage switching type	Voltage limiting type /Voltage switching type	Voltage switching type	Voltage switching type
Testing	I	I	I	I
Rated Voltage Un	110V/220V AC50-60Hz	110V/220V AC50-60Hz	110V/220V AC50-60Hz	110V/220V AC50-60Hz
Maximum Continuous Operating Voltage Uc (AC)	275V,320V,385V,420V,440V
Insulation resistance	>100 MΩ	>100 MΩ	>100 MΩ	>100 MΩ
Impulse Discharge Current limp (10/350 μs)	12.5KA	15KA	25KA	50KA
Protection Level Up (1.2/50 μs)	2.2 KV	2.2 KV	2.5 KV	2.8 KV
Response Time tA	≤100ns	≤100ns	≤100ns	≤100ns
Dimension (mm)	144x90x66	144x90x66	144x90x66	144x90x66
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

SPD Surge Protector 10-350 Type , T1 Level Graphite Core
Image	Model Number	Rated Current	Quantity Per Carton	Remark
	LD-MD-12.5KA(10-350) 4P	5~12.5KA	36	18mm Samll Shell
	LD-MD-15KA(10-350) 4P	5~15KA	18	36mm
	LD-MD-25KA(10-350) 4P	10~25KA	18	36mm
	LD-MD-50KA(10-350) 4P	25~50KA	18	36mm

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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.

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