Contact Us

Products Information
Technical Parameters of Surge Protective Device KM70B/1-320T:
1. Type 1 SPD, used between L-N, L-PE;
2. Combined SPD of Metal Oxide Varistor (MOV) and Gas Discharge Tube (GDT);
3. With feature of Gap component SPD's large discharge capacity&MOV component SPD's low residual voltage;
4. Without follow current, more reliable than that of Gap component SPD;
5 . Without leakage current, solve the problem of MOV component's power frequency leakage current.
Physical Parameters of Surge Protective Device:

|
Type of Network
|
L-N/L-PE (Type1/2)
|
||
|
Nominal ac voltage
|
Un
|
230V
|
|
|
Rated Voltage (Max. Cont. Operating Voltage)
|
Uc
|
320V
|
|
|
Nominal Discharge current(8/20μs)
|
In
|
70kA
|
|
|
Maximum discharge current
|
Imax
|
120kA
|
|
|
Impulse current (10/350μs)
|
Iimp
|
30kA
|
|
|
Voltage protection level(at20KA)
|
Up
|
≤1.5kV
|
|
|
Response time
|
tA
|
≤100 ns
|
|
|
Max.recommended backup fuse
|
315 A(gL)
|
||
|
Max.short circuit withstand
|
≥25kArms
|
||
|
TOV voltage Ut
|
335V/5 sec.
|
||
|
Test standards
|
IEC 61643-1:2005
|
||
|
Dimension:Length×Width×Height
|
See drawing
|
||
|
I/O Connections
|
16mm2(power supply); 25mm2(earthing)
|
||
|
Operation temperature range
|
-20℃~+75℃
|
||
|
Mounting
|
Symmetrical rail (EN50022/DIN46277-3)
|
||
|
Degree of protection
|
IP20
|
||
|
Operation indicator
|
Mechanical indicator
|
||
|
Packing
|
|||
|
Outer packaging
|
Weight:14(Kg)
|
Dimension:43*25*19cm3
|
Total: 60 pcs
|
|
Inner Packaging
|
4 Pcs / package
|
||
Related Products