Telebahn 4P AC T1 275V Iimp25kA/In60kA/Imax120kA for Three-phase TT or TN-S Power Supply System Surge Arresters SPD
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Summary
BT PBM120 275 RM/3+N is for installation at LPZ 0B-1 or higher, protecting low voltage equipment from surge damage. Applied in modular SPD Class I (Class B) for three-phase TT/TN-S (“3+1” circuit) power supply system. Designed according to IEC 61643-11/EN 61643-11/GB18802.11.
Hightlight Featrues
• 8/20us varistor, Max. discharge current up to Imax 120kA (L-N module).
• Combined lightning current arrester for three-phase TT/TN-S (“3+1” circuit) system.
• Consist of varistors and thermal disconnection devices.
• Double thermal disconnection device, provide more reliable protection.
• Multifunctional connection for conductors and busbar.
• Green windows will change to red when fault and also provide remote alarm control at the same time.
Technical data
Type |
BT PBM120 275 RM/3+N |
|
Single-pole protection module |
BT PBM120 275 RM (*3) (L-N module) |
BT PBNM 255 RM (*1) (N-PE module) |
Nominal a.c. voltage [UN] |
230V/400V AC |
|
Total discharge current (8/20) [In total] |
120kA |
|
Rated voltage (max. continuous voltage) [Uc] L-N / N-PE |
275V AC |
255V AC |
Nominal discharge current (8/20) [In] L-N / N-PE |
60kA |
100kA |
Max. discharge current (8/20) [Imax] |
120kA |
120kA |
Lightning impulse current (10/350) [Iimp] N-PE |
/ |
25kA |
Voltage protection level at In [Up] L-N / N-PE |
≤ 2.2kV |
≤ 2.5kV |
Response time [tA] L-N / N-PE |
≤ 25ns |
≤ 100ns |
TOV voltage L-N / N-PE |
355V / 5sec |
1200V / 200ms |
Max. back up fuse |
125A gL/gG |
|
Operating temperature range [Tu] |
-40°C...+80°C |
|
Cross-sectional area |
35mm2 solid /50mm2 flexible |
|
Mounting on |
35mm DIN rail |
|
Enclosure material |
Pruple (Module) / Light gray (Base) thermoplastic, UL94-V0 |
|
Dimension |
8 mods (144mm) |
|
Test standards |
IEC 61643-11; EN 61643-11; GB18802.11 |
|
Certification |
CE (LVD, EMC); RoHS |
|
Type of remote signalling contact |
Switching contact |
|
Switching capacity |
AC:250V/0.5A; DC:250V/0.1A;150V/0.2A;750V/0.5A |
|
Cross-sectional area for remote signalling contact |
Max. 1.5mm2 solid / flexible |
|
Ordering information |
||
Type |
BT PBM120 275 RM/3+N |
|
Art.-No. |
800 829 |
|
Packing unit |
1pc(s) |