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Pluggable DIN Rail Mounted SPDs<br />
BLITZDUCTOR ® XT LifeCheck ® Modules<br />
BXT ML4 BD HF 5 / 24<br />
1<br />
1´<br />
2<br />
2´<br />
45<br />
protected<br />
12 51<br />
(2/3 mods.)<br />
3<br />
4<br />
3´<br />
4´<br />
Dimension drawing BXT ML4 BD HF<br />
Basic circuit diagram BXT ML4 BD HF<br />
Space-saving combined lightning current and surge arrester module with LifeCheck feature for protecting<br />
two pairs in unearthed high-frequency bus systems or video transmission systems. If<br />
LifeCheck detects thermal or electrical overload, the arrester has to be replaced. This status is indicated<br />
contactlessly by the DEHNrecord LC / MCM reader.<br />
• LifeCheck SPD monitoring function<br />
• Minimal signal interference<br />
• For installation in conformity with the<br />
lightning protection zones concept at<br />
the boundaries from 0 A – 2 and higher<br />
920 371<br />
BXT ML4 BD HF 5<br />
920 375<br />
BXT ML4 BD HF 24<br />
BXT ML4 BD HF 5<br />
920 371<br />
Kombiableiter-Modul für 2 DoppeladernBLITZDUCTOR XT mit LifeCheck<br />
BXT ML4 BD HF 24<br />
920 375<br />
Kombiableiter-Modul für 2 DoppeladernBLITZDUCTOR XT mit LifeCheck<br />
Type BXT ML4 BD HF 5 BXT ML4 BD HF 24<br />
Part No. 920 371 920 375<br />
SPD class M M<br />
SPD monitoring system LifeCheck LifeCheck<br />
Nominal voltage (U N ) 5 V 24 V<br />
Max. continuous operating d.c. voltage (U C ) 6.0 V 33 V<br />
Max. continuous operating a.c. voltage (U C ) 4.2 V 23.3 V<br />
Nominal current at 45°C (I L ) 1.0 A 1.0 A<br />
D1 Total lightning impulse current (10/350 μs) (I imp ) 10 kA 10 kA<br />
D1 Lightning impulse current (10/350 μs) per line (I imp ) 2.5 kA 2.5 kA<br />
C2 Total nominal discharge current (8/20 μs) (I n ) 20 kA 20 kA<br />
C2 Nominal discharge current (8/20 μs) per line (I n ) 10 kA 10 kA<br />
Voltage protection level line-line for I imp D1 (U p ) ≤ 25 V ≤ 65 V<br />
Voltage protection level line-PG for I imp D1 (U p ) ≤ 550 V ≤ 550 V<br />
Voltage protection level line-line at 1 kV/μs C3 (U p ) ≤ 11 V ≤ 47 V<br />
Voltage protection level line-PG at 1 kV/μs C3 (U p ) ≤ 550 V ≤ 550 V<br />
Series impedance per line 1.0 ohm 1.0 ohm<br />
Cut-off frequency line-line (f G ) 100.0 MHz 100,0 MHz<br />
Capacitance line-line (C) ≤ 25 pF ≤ 25 pF<br />
Capacitance line-PG (C) ≤ 16 pF ≤ 16 pF<br />
Operating temperature range -40°C...+80°C -40°C...+80°C<br />
Degree of protection (with plugged-in protection module) IP 20 IP 20<br />
Pluggable into base part base part<br />
Earthing via base part base part<br />
Enclosure material polyamide PA 6.6 polyamide PA 6.6<br />
Colour yellow yellow<br />
Test standards IEC 61643-21 / EN 61643-21, UL 497B IEC 61643-21 / EN 61643-21, UL 497B<br />
SIL classification SIL2 * ) SIL2 * )<br />
ATEX approvals DEKRA 11ATEX0089 X: II 3 G Ex nA IIC T4 Gc DEKRA 11ATEX0089 X: 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<br />
Approvals CSA, VdS, UL, GOST CSA, VdS, UL, 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 />
Labelling system BA1-BA15<br />
2x165 adhesive labels for labelling<br />
DRC MCM XT monitoring devices<br />
with their bus address.<br />
Type BS BA1 BA15 BXT<br />
Part No. 920 398<br />
Colour<br />
white<br />
Earthing module<br />
For direct earthing of lines connected<br />
to the BLITZDUCTOR XT<br />
base part.<br />
Type<br />
BXT M4 E<br />
Part No 920 308<br />
Colour<br />
grey<br />
Test / Disconnection module<br />
Module for testing lines, plugs into<br />
BLITZDUCTOR XT base parts<br />
Type<br />
BXT M4 T<br />
Part No 920 309<br />
Colour<br />
grey<br />
For ”Accessories for BLITZDUCTOR XT LifeCheck modules“, please also refer to pages 188/206/207/208/368/370.<br />
www.dehn.de<br />
195
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