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Surge Protector
T2 Surge Protector Device (DC)
  • LD-MD Series
T2 Surge Protector Device (DC)
Product Overview
The DC T2 Class Surge Protector Device has several impressive features, including a pluggable module for easy installation and maintenance, a large discharge capacity, and a fast response time. Additionally, it is equipped with a double thermal disconnect device for enhanced protection and multifunctional terminals for both wire and busbar connections. In the event of a fault, the device's green window will turn red and a remote alarm terminal is included for added convenience.

It is installed in IPZ0-1 and above, providing reliable protection against lightning strikes and surge damage to low voltage equipment. Applicable to PSD I+II class (B+C class) of various power supply systems. Designed according to IEC 61643-1/GB/T18802.1.

LD

MD

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/

R



LEIDUN

Surge protector Device (SPD)


Maximum discharge current


2P、3P

With remote signaling or communication and remote alarm

Lightning protection level

(T2)

 


Model

LD-MD(DC) / 2P

LD-MD(DC) / 3P

Maximum continuous operating voltage

800VDC / 1000VDC / 1200VDC / 1500VDC

SPD Category

Voltage limiting type

Nominal discharge current

20kA

Maximum discharge current

40kA

Voltage protection level

3.2kV / 4.0kV / 4.4kV

Response time

≤25ns

≤25ns

Maximum spare fuse

125A gL/gG

125A gL/gG

Operating temperature range (Parallel Circuits)

-40℃~+80℃

-40℃~+80℃

Installation wire cross-sectional area

1.5~25mm2 Solid/ 35mm2 Flexibility

Installation method

35mm DIN rail

Shell material

RED / WHITE(Modules)/ Dark Gray(Base)Thermoplastics,UL94-V0

Test standards

IEC 61643-1; GB/T18802.31

Remote signal installation connection type

Switch contacts

Cross-sectional area of remote signal terminal conductor

Max. 1.5mm2 Solid/ Flexibility

 


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