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Chống sét lan truyền đường truyền dữ liệu/tín hiệu cho cáp có giáp, Imax=20kA

Mã sản phẩm : KSMH.SH
Giá bán : Liên hệ
Mô tả :

Xuất xứ: Kumwell/ Thái Lan

Ứng dụng: bảo vệ chống sét lan truyền đường truyền dữ liệu/ tín hiệu cho cáp có giáp

Kumwell KSMH.SH series of surge protective devices has been developed to protect against the effects of induced voltages onto data, signal and communication circuits.

The circuit topology consists of a multi-stage protector providing both com-mon (longitudinal) mode and differential (transverse) mode protection.

Coarse protection is provided by a three terminal GDT while fine protection is provided using a high speed silicon avalanche diodes or metal oxide varistor stage. Care is taken to ensure coordination between these two stages without voltage or surge current blind spots occurring.


3 terminal GDT         KSMH.SH      
Technical Data   5V 12V 15V 24V 30V 48V 60V 110V
Electrical Data                  
Number of protected pairs         1 (2 conductors)      
Nominal operating voltage (DC) Un 5V 12V 15V 24V 30V 48V 60V 110V
Max. continuous operating voltage (DC) UC 6V 15V 18V 28V 33V 52V 64V 170V
Rated load current at 25°C IL       1A      
Norminal discharge current (8/20µs) In       10kA      
Max. discharge current (8/20µs) Imax       20kA      
Lightning impulse current (10/350µs) Iimp       2.5kA      
Residual voltage at 5kA (8/20µs) Ures (line-line) < 22V < 42V < 48V < 70V < 80V < 140V < 160V < 450V
Rated spark overvoltage (SH-PG)       184-276V      
(a-b),(a,b-PG) 7-10V 16-21V 20-24V  30-36V 35-43V 55-68V 67-85V 184-264V
Response time tA (SH-PG)       , 100 ns      
(a-b),(a,b-PG)       < 1 ns      
Thermal protection         Yes      
Insulation resistance of the protection Riso (SH-PG)       > 1GΩ/100V      
(a-b),(a,b-PG) ≥ 6kΩ ≥ 15MΩ ≥ 18MΩ ≥ 28MΩ ≥ 33MΩ ≥ 52MΩ ≥ 64MΩ ≥ 170MΩ
Serial resistance R       1.6-2.0Ω      
Transverse capacitance C (SH-PG)       5pF      
(a-b),(a,b-PG)       50pF      
Limit frequency fG       30MHz      
Mechanical data                  
Temperature range         -40°C to + 80°C      
Terminal cross section         Stranded to 4 mm2      
Mounting         35mm DIN rail      
Degree of protection         IP20      
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