NL1-D20 1P Surge Protection Device

NL1-D20 1P Surge Protection DeviceNL1-D20 1P Surge arrester

  • Module design, convenient installation, with easy electric maintains operation
  • Built-in over current and over heat, temperature control open circuit technology
  • Adopt independent intelligence property right and high performance sensitivity resistance plates
  • Small creepage current, fast response time, remnant low voltage
  • Indicate alarm display, green(normal), red(malfunction)
  • A sensitive heat tripping/deterioration device is placed inside the protection module, when the protection device gets damaged because of overload, the inbuilt tripper shall act in time to cut off the connection with the power supply

1. Could be replaced for the module not need power cut.
2. Maximum currrent of endure the surge stroke 20kA(8/20μs).
3. Time of response<25ns.
4. The color of visible window shows operating status,green means normal,red means abnormal.

* NL1-D series Surge Protective Device SPD is suitable for TN-S. TN-C-S. TT. IT etc.power supply system of AC 50/60Hz,≤380V,installed on the joint of NP1 or NP2 and NP3,it ‘s designed according to IEC61643-1. GB18802.1,it adopts 35mm standard rail,there is a failure release mounted on the module of Surge Protective Device.When the SPD fails in breakdown for over-heat and over-current,the failure release will help electric device separate from the power system and give the indication signal,green means normal,red means abnormal,it ‘s also could be replaced for the module when has operating voltage.
It’s suitable for D grade surge protection,NL1-D series Surge Protective Device according to GB188021.1-2002, installed on the joint of NP1 or LPZ2 and NP3,usually installed in household distribution boards,computer equipment,information equipment,electronic equipment and in the socket box in front of control equipment or near the control equipment.

*.Notice:When you order our goods,please write the model and quantity carefully.For example: NL1-D20/2-275，100 pieces.

Technical Parameters

Technical Parameters Model NL1-D
Rated Operating Voltage Un(V~) 220V 380V 220V 380V
Maximum Continuous Operating Voltage Uc(V~) 275V 385V 320V 385V
Voltage Protection Level Up(V~)kV ≤0.7 ≤1.0 ≤1.2 ≤1.5
Nominal Discharge Current In(8/μ20μs)kA 5 10
Maximum Discharge Current Imax(8/μ20μs)kA 10 20
Response Time ns <25
Test Standard GB18802. IEC61643-1
L/N(mm2) The Cross Section of L/N Line 6
E(mm2) The Cross Section of PE Line 16
Fuse or Switch(A) 10A. 16A 16A. 25A
Operating Environment℃ -40℃~+85℃
Relative Humidity(25℃) ≤95%
Installation Standard Rail 35mm
Material of Outer Covering Fiber glass reinforced plastic

Connection Diagrams & Dimensions

NL1-D20 1P Surge Protection Device…

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