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SPD Surge Protector T1+T2 255V AC Iimp25kA/In50kA/Imax75kA Three-phase TT ( 3+1 circuit)/TN-S System Surge Protective Devices
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Technical data
|
Type |
BT P BCM 25 (150 ) RM /3+N |
BT P BCM 25 (255) RM /3+N |
BT P BCM 25 (320) RM/3+N |
|
Rated voltage (max. continuous voltage) [Uc] (L-N/N-PE) |
150V/255V |
255V/255V |
320V/255V |
|
Total lightning impulse current (10/350) [Iimp] (L1+L2+L3+N-PE) |
100kA |
100kA |
100kA |
|
Lightning impulse current (10/350) [Iimp] (L-N/N-PE) |
25kA/75kA |
25kA/75kA |
25kA/75kA |
|
Nominal discharge current (8/20) [In] (L-N/N-PE) |
50kA/100kA |
50kA/100kA |
50kA/100kA |
|
Voltage protection level at In [Up] |
≤ 1.5kV |
≤ 1.5kV |
≤ 1.5kV |
|
Response time [tA] |
≤ 100ns |
≤ 100ns |
≤ 100ns |
|
Follow current extinguishing capability at Uc |
32A fuse will not be triggered at 2kArms 255V |
||
|
Max. back up fuse (L) [F] |
200A gL/gG |
||
|
Max. back up fuse (L-L’) [F] |
125A gL/gG |
||
|
Operating temperature range [Tu] |
-40°C...+80°C |
||
|
Min. cross-sectional area |
10mm2 solid / flexible |
||
|
Max. cross-sectional area |
35mm2 solid / 50mm2 flexible |
||
|
Mounting on |
35mm DIN rail |
||
|
Enclosure material |
Purple (module) & light grey (base) thermoplastic, UL94-V0 |
||
|
Dimension |
8 mods |
||
|
Test standards |
IEC 61643-1; EN 61643-1; GB 18802.1 |
||
|
Certification |
CE, CB, Rohs, ISO9001:2015 |
||
|
Type of remote signalling contact |
Switching contact |
||
Hightlight Features
• 10/350μs, 8/20μs sparkgap.
• Three-phase lightning current surge arrester, Pluggable.
• Lightning impulse current withstand max.25kA (10/350μs) L-N, max.50kA (10/350μs) N-PE.
• Adopt hermetical GDT technology, high follow current extinguishing capacity.
• Extremely low voltage protection level.
• Double thermal disconnector devices, providing more reliable protection.
Summary
for installation at LPZ 0A-1 or higher, protecting low voltage equipment from surge damage. Applied in modular SPD Class I (Class B) for TT (3+1 circuit) and TNS power supply system. Designed according to IEC 61643-11/GB 18802.1.
