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Chống sét lan truyền cho nguồn AC cấp II, 3 pha, 50kA

Mã sản phẩm : KZ12.*.ds-3/1
Giá bán : Liên hệ
Mô tả :
Tiêu chuẩn: IEC 61643-11
Xuất xứ: Kumwell/ Thái Lan
Ứng dụng: Thiết bị bảo vệ L-N, N-PE

Kumwell KZ12.*.ds-3/1 is surge arrester class II according to IEC 61643-11. Complete device consists of a base part and pluggable module. These arresters are recommended for use in the Lightning Protection Zones Con-cept at the boundaries of LPZ 1-2 (according to IEC 62305)

The main use of KZ12.*.ds-3/1 arrester is in all kinds of industry, residential and administration buildings. They are to be placed into the secondary switchboards or into the control box.

These arresters are combine with KZ12.I020.NPE which is recommended to install between N and PE for TN-S and TT system.

Single-Phase for TN-S and TT System        
Technical Data   KZ12.U0275.ds-3/1 KZ12.U0320.ds-3/1 KZ12.U0385.ds-3/1 KZ12.U0440.ds-3/1
Max. continuous operating voltage UN 275 V AC 320 V AC   385 V AC 440 V AC
Max. discharge current (8/20µs)  (L-N) Imax 50 kA 50 kA     40 kA 40 kA
Nominal discharge current (8/20µs) (L-N) In 20 kA 20 kA     15 kA 15 kA
Nominal discharge current (8/20µs)  (N-PE) In   20 kA      
Lightning impulse current (10/350µs) (N-PE) Iimp   20 kA      
Voltage protection level at In (L-N) UP < 1.3 kV < 1.45 kV < 1.65 kV < 2.15 kV
Voltage protection level at Iimp (N-PE) UP   < 1.3 kV  
Temporary overvoltage (TOV) (L-N) UT 355 V / 5sec 410 V / 5sec 465 V / 5sec 530 V / 5sec
Temporary overvoltage (TOV) (N-PE) UT   1200 V / 0.2sec  
Response time (L-N) tA   < 25 ns  
Response time (N-PE) tA   < 100 ns  
Max. back up fuse     160 A gL/gG  
Short-circuit withstand capability Ip   60 kArms  
LPZ     1-2  
Protection type     IP20  
Operating temperature range
  -40°C to + 80°C  
Mounting on     Din rail 35 mm  
Failure indication     green (ok) / red (failure)  
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