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BLITZDUCTOR ® XT LifeCheck ® Modules<br />
BXT ML2 BD S 5 – BD S 48<br />
Pluggable DIN Rail Mounted SPDs<br />
1<br />
1´<br />
2<br />
2´<br />
protected<br />
45<br />
3<br />
4<br />
3´<br />
4´<br />
12 51<br />
(2/3 mods.)<br />
• LifeCheck SPD monitoring function<br />
• Optimal protection of one pair and line<br />
shield<br />
• For installation in conformity with the<br />
lightning protection zones concept at<br />
the boundaries from 0 A – 2 and higher<br />
Basic circuit diagram BXT ML2 BD<br />
Dimension drawing BXT ML2 BD<br />
Space-saving combined lightning current and surge arrester module with LifeCheck feature for protecting<br />
one pair of unearthed balanced interfaces with direct or indirect shield earthing. If LifeCheck<br />
detects thermal or electrical overload, the arrester has to be replaced. This status is indicated contactlessly<br />
by the DEHNrecord LC / MCM reader.<br />
Type BXT ML2 BD S 5 BXT ML2 BD S 12 BXT ML2 BD S 24 BXT ML2 BD S 48<br />
Part No. 920 240 920 242 920 244 920 245<br />
SPD class M M M M<br />
SPD monitoring system LifeCheck LifeCheck LifeCheck LifeCheck<br />
Nominal voltage (U N ) 5 V 12 V 24 V 48 V<br />
Max. continuous operating d.c. voltage (U C ) 6.0 V 15 V 33 V 54 V<br />
Max. continuous operating a.c. voltage (U C ) 4.2 V 10.6 V 23.3 V 38.1 V<br />
Nominal current at 45°C (I L ) 1.0 A 1.0 A 1.0 A 1.0 A<br />
D1 Total lightning impulse current (10/350 μs) (I imp ) 9 kA 9 kA 9 kA 9 kA<br />
D1 Lightning impulse current (10/350 μs) per line (I imp ) 2.5 kA 2.5 kA 2.5 kA 2.5 kA<br />
C2 Total nominal discharge current (8/20 μs) (I n ) 20 kA 20 kA 20 kA 20 kA<br />
C2 Nominal discharge current (8/20 μs) per line (I n ) 10 kA 10 kA 10 kA 10 kA<br />
Voltage protection level line-line for I imp D1 (U p ) ≤ 25 V ≤ 26 V ≤ 52 V ≤ 80 V<br />
Voltage protection level line-PG for I imp D1 (U p ) ≤ 550 V ≤ 550 V ≤ 550 V ≤ 550 V<br />
Voltage protection level line-line at 1 kV/μs C3 (U p ) ≤ 9 V ≤ 19 V ≤ 45 V ≤ 70 V<br />
Voltage protection level line-PG at 1 kV/μs C3 (U p ) ≤ 550 V ≤ 550 V ≤ 550 V ≤ 550 V<br />
Series impedance per line 1.0 ohm 1.0 ohm 1.0 ohm 1.0 ohm<br />
Cut-off frequency line-line (f G ) 1.0 MHz 2.8 MHz 7.8 MHz 8.7 MHz<br />
Capacitance line-line (C) ≤ 5.4 nF ≤ 2.0 nF ≤ 1.0 nF ≤ 0.7 nF<br />
Capacitance line-PG (C) ≤ 25 pF ≤ 25 pF ≤ 25 pF ≤ 25 pF<br />
Operating temperature range -40°C...+80°C -40°C...+80°C -40°C...+80°C -40°C...+80°C<br />
Degree of protection<br />
(with plugged-in protection module) IP 20 IP 20 IP 20 IP 20<br />
Pluggable into base part base part base part base part<br />
Earthing via base part base part base part base part<br />
Enclosure material polyamide PA 6.6 polyamide PA 6.6 polyamide PA 6.6 polyamide PA 6.6<br />
Colour yellow yellow yellow yellow<br />
Test standards IEC 61643-21 / EN 61643-21 IEC 61643-21 / EN 61643-21 IEC 61643-21 / EN 61643-21 IEC 61643-21 / EN 61643-21<br />
SIL classification SIL2 / SIL3 * ) SIL2 / SIL3 * ) SIL2 / SIL3 * ) SIL2 / SIL3 * )<br />
ATEX approvals DEKRA 11ATEX0089 X: DEKRA 11ATEX0089 X: DEKRA 11ATEX0089 X: DEKRA 11ATEX0089 X:<br />
II 3 G Ex nA IIC T4 Gc II 3 G Ex nA IIC T4 Gc II 3 G Ex nA IIC T4 Gc II 3 G Ex nA IIC T4 Gc<br />
IECEx approvals DEK 11.0032X: Ex nA IIC T4 Gc DEK 11.0032X: Ex nA IIC T4 Gc DEK 11.0032X: Ex nA IIC T4 Gc DEK 11.0032X: Ex nA IIC T4 Gc<br />
Approvals CSA, GOST, VdS CSA, GOST, VdS CSA, GOST, VdS CSA, GOST, VdS<br />
920 240<br />
BXT ML2 BD S 5<br />
920 242<br />
BXT ML2 BD S 12<br />
920 244<br />
BXT ML2 BD S 24<br />
BXT 920 245 ML2 BD S 5<br />
920 BXT 240 ML2 BD S 48<br />
Kombiableiter-Modul für 1 DoppeladerBLITZDUCTOR XT mit LifeCheck<br />
BXT ML2 BD S 12<br />
920 242<br />
Kombiableiter-Modul für 1 DoppeladerBLITZDUCTOR XT mit LifeCheck<br />
BXT ML2 BD S 24<br />
920 244<br />
Kombiableiter-Modul für 1 DoppeladerBLITZDUCTOR XT mit LifeCheck<br />
BXT ML2 BD S 48<br />
920 245<br />
Kombiableiter-Modul für 1 DoppeladerBLITZDUCTOR XT mit LifeCheck<br />
*) For more detailed information, please refer to www.dehn.de/en/sil/ and page 210<br />
Accessories for BLITZDUCTOR ® XT LifeCheck ® Modules<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 />
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 />
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 />
For ”Accessories for BLITZDUCTOR XT LifeCheck modules“, please also refer to pages 188/206/207/208/368/370.<br />
198 www.dehn.de
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