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Pluggable DIN Rail Mounted SPDs<br />
BLITZDUCTOR ® XT LifeCheck ® Modules<br />
BXT ML4 B 180<br />
1<br />
1´<br />
2<br />
2´<br />
45<br />
12 51<br />
(2/3 mods.)<br />
3<br />
4<br />
protected<br />
3´<br />
4´<br />
Dimension drawing BXT ML4 B<br />
Basic circuit diagram BXT ML4 B<br />
Space-saving, four-pole lightning current arrester module with LifeCheck feature for almost all<br />
applications. For use in connection with downstream Q surge arresters or combined lightning<br />
current and surge arresters with a lower or equal voltage level. If LifeCheck detects thermal or<br />
electrical overload, the arrester has to be replaced. This status is indicated contactlessly by the<br />
DEHNrecord LC / MCM reader.<br />
• LifeCheck SPD monitoring function<br />
• Four-pole lightning equipotential bonding<br />
• For installation in conformity with the<br />
lightning protection zones concept at<br />
the boundaries from 0 A – 1 and higher<br />
920 310<br />
BXT ML4 B 180<br />
BXT ML4 B 180<br />
920 310<br />
Blitzstromableiter-Modul 4-poligBLITZDUCTOR XT mit LifeCheck<br />
Type BXT ML4 B 180<br />
Part No. 920 310<br />
SPD class<br />
H<br />
SPD monitoring system<br />
LifeCheck<br />
Nominal voltage (U N )<br />
180 V<br />
Max. continuous operating d.c. voltage (U C )<br />
180 V<br />
Max. continuous operating a.c. voltage (U C )<br />
127 V<br />
Nominal current at 45°C (I L )<br />
1.2 A<br />
D1 Total lightning impulse current (10/350 μs) (I imp )<br />
10 kA<br />
D1 Lightning impulse current (10/350 μs) per line (I imp )<br />
2.5 kA<br />
C2 Total nominal discharge current (8/20 μs) (I n )<br />
20 kA<br />
C2 Nominal discharge current (8/20 μs) per line (I n )<br />
10 kA<br />
Voltage protection level line-line for I imp D1 (U p )<br />
≤ 600 V<br />
Voltage protection level line-PG for I imp D1 (U p )<br />
≤ 550 V<br />
Voltage protection level line-line at 1 kV/μs C3 (U p )<br />
≤ 650 V<br />
Voltage protection level line-PG at 1 kV/μs C3 (U p )<br />
≤ 550 V<br />
Series impedance per line<br />
0.4 ohms<br />
Capacitance line-line (C)<br />
≤ 16 pF<br />
Capacitance line-PG (C)<br />
≤ 16 pF<br />
Operating temperature range<br />
-40°C...+80°C<br />
Degree of protection (with plugged-in protection module) IP 20<br />
Pluggable into<br />
base part<br />
Earthing via<br />
base part<br />
Enclosure material polyamide PA 6.6<br />
Colour<br />
yellow<br />
Test standards<br />
IEC 61643-21 / EN 61643-21, UL 497B<br />
SIL classification SIL2 / SIL3 * )<br />
ATEX approvals<br />
DEKRA 11ATEX0089 X: II 3 G Ex nA IIC T4 Gc<br />
IECEx approvals<br />
DEK 11.0032X: Ex nA IIC T4 Gc<br />
Approvals<br />
CSA, VdS, GOST<br />
*) For more detailed information, please refer to www.dehn.de/en/sil/ and page 210<br />
Accessories for BLITZDUCTOR ® XT LifeCheck ® Modules<br />
DRC LC M3+<br />
Portable device with LifeCheck<br />
sensor for flexible use. Fast and<br />
easy testing of LifeCheck-equipped<br />
arresters.<br />
Type DRC LC M3+<br />
Part No. 910 653<br />
Dimensions of<br />
storage case 340 x 275 x 83 mm<br />
DRC MCM XT<br />
DIN rail mounted device with integrated<br />
LifeCheck sensor for condition<br />
monitoring of max. 10 Life -<br />
Check-equipped BXT arresters.<br />
Type<br />
DRC MCM XT<br />
Part No. 910 695<br />
Colour<br />
grey<br />
BXT BAS<br />
Base part as a very space-saving,<br />
four-pole, universal feed-through<br />
terminal for the insertion of a protection<br />
module without signal<br />
interruption.<br />
Type<br />
BXT BAS<br />
Part No. 920 300<br />
Colour<br />
yellow<br />
For ”Accessories for BLITZDUCTOR XT LifeCheck modules“, please also refer to pages 188/206/207/208/368/370.<br />
www.dehn.de<br />
189
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