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Pluggable DIN Rail Mounted SPDs
BLITZDUCTOR ® XT LifeCheck ® Modules
BXT ML4 BD 5 – BD 180
1
1´
2
2´
45
protected
12 51
(2/3 mods.)
3
4
3´
4´
Dimension drawing BXT ML4 BD
Basic circuit diagram BXT ML4 BD
Space-saving combined lightning current and surge arrester module with LifeCheck feature for protecting
two pairs of unearthed balanced interfaces. If LifeCheck detects thermal or electrical overload,
the arrester has to be replaced. This status is indicated contactlessly by the DEHNrecord LC /
MCM reader.
• LifeCheck SPD monitoring function
• Optimal protection of two single pairs
• For installation in conformity with the
lightning protection zones concept at
the boundaries from 0 A – 2 and higher
920 340
BXT ML4 BD 5
920 342
BXT ML4 BD 12
920 344
BXT ML4 BD 24
BXT 920 345 ML4 BD 5
920 BXT 340 ML4 BD 48
Kombiableiter-Modul 920 346
für 2 DoppeladernBLITZDUCTOR XT mit LifeCheck
BXT ML4 BD 12 60
920 342 347
Kombiableiter-Modul BXT ML4 BD 180 für 2 DoppeladernBLITZDUCTOR XT mit LifeCheck
BXT ML4 BD 24
920 344
Kombiableiter-Modul für 2 DoppeladernBLITZDUCTOR XT mit LifeCheck
BXT ML4 BD 48
920 345
Kombiableiter-Modul für 2 DoppeladernBLITZDUCTOR XT mit LifeCheck
BXT ML4 BD 60
920 346
Kombiableiter-Modul für 2 DoppeladernBLITZDUCTOR XT mit LifeCheck
BXT ML4 BD 180
920 347
Kombiableiter-Modul für 2 DoppeladernBLITZDUCTOR XT mit LifeCheck
Type BXT ML4 ... BD 5 BD 12 BD 24 BD 48 BD 60 BD 180
Part No. 920 340 920 342 920 344 920 345 920 346 920 347
SPD class M M M M M L
SPD monitoring system LifeCheck LifeCheck LifeCheck LifeCheck LifeCheck LifeCheck
Nominal voltage (U N ) 5 V 12 V 24 V 48 V 60 V 180 V
Max. continuous operating d.c. voltage (U C ) 6.0 V 15 V 33 V 54 V 70 V 180 V
Max. continuous operating a.c. voltage (U C ) 4.2 V 10.6 V 23.3 V 38.1 V 49.5 V 127 V
Nominal current at 45°C (I L ) 1.0 A 1.0 A 1.0 A 1.0 A 1.0 A 0.75 A
D1 Total lightning impulse current (10/350 μs) (I imp ) 10 kA 10 kA 10 kA 10 kA 10 kA 10 kA
D1 Lightning impulse current (10/350 μs) per line (I imp ) 2.5 kA 2.5 kA 2.5 kA 2.5 kA 2.5 kA 2.5 kA
C2 Total nominal discharge current (8/20 μs) (I n ) 20 kA 20 kA 20 kA 20 kA 20 kA 20 kA
C2 Nominal discharge current (8/20 μs) per line (I n ) 10 kA 10 kA 10 kA 10 kA 10 kA 10 kA
Voltage protection level line-line for I imp D1 (U p ) ≤ 25 V ≤ 26 V ≤ 52 V ≤ 80 V ≤ 110 V ≤ 270 V
Voltage protection level line-PG for I imp D1 (U p ) ≤ 550 V ≤ 550 V ≤ 550 V ≤ 550 V ≤ 550 V ≤ 550 V
Voltage protection level line-line at 1 kV/μs C3 (U p ) ≤ 9 V ≤ 19 V ≤ 45 V ≤ 70 V ≤ 90 V ≤ 250 V
Voltage protection level line-PG at 1 kV/μs C3 (U p ) ≤ 550 V ≤ 550 V ≤ 550 V ≤ 550 V ≤ 550 V ≤ 550 V
Series impedance per line 1.0 ohm 1.0 ohm 1.0 ohm 1.0 ohm 1.0 ohm 1.8 ohms
Cut-off frequency line-line (f G ) 1.0 MHz 2.8 MHz 7.8 MHz 8.7 MHz 11.0 MHz 25.0 MHz
Capacitance line-line (C) ≤ 5.4 nF ≤ 2.0 nF ≤ 1.0 nF ≤ 0.7 nF ≤ 500 pF ≤ 240 pF
Capacitance line-PG (C) ≤ 16 pF ≤ 16 pF ≤ 16 pF ≤ 16 pF ≤ 16 pF ≤ 16 pF
Operating temperature range -40°C...+80°C -40°C...+80°C -40°C...+80°C -40°C...+80°C -40°C...+80°C -40°C...+80°C
Degree of protection
(with plugged-in protection module) IP 20 IP 20 IP 20 IP 20 IP 20 IP 20
Pluggable into base part base part base part base part base part base part
Earthing via base part base part base part base part base part base part
Enclosure material polyamide PA 6.6 polyamide PA 6.6 polyamide PA 6.6 polyamide PA 6.6 polyamide PA 6.6 polyamide PA 6.6
Colour yellow yellow yellow yellow yellow yellow
Test standards
IEC 61643-21 / EN 61643-21, UL 497B
SIL classification SIL2 / SIL3 * )
ATEX approvals
DEKRA 11ATEX0089 X: II 3 G Ex nA IIC T4 Gc
IECEx approvals
DEK 11.0032X: Ex nA IIC T4 Gc
Approvals
CSA, UL, VdS, GOST
*) For more detailed information, please refer to www.dehn.de/en/sil/ and page 210
Accessories for BLITZDUCTOR ® XT LifeCheck ® Modules
Labelling system BA1-BA15
2x165 adhesive labels for labelling
DRC MCM XT monitoring devices
with their bus address.
Type BS BA1 BA15 BXT
Part No. 920 398
Colour
white
Earthing module
For direct earthing of lines connected
to the BLITZDUCTOR XT
base part.
Type
BXT M4 E
Part No 920 308
Colour
grey
Test / Disconnection module
Module for testing lines, plugs into
BLITZDUCTOR XT base parts
Type
BXT M4 T
Part No 920 309
Colour
grey
For ”Accessories for BLITZDUCTOR XT LifeCheck modules“, please also refer to pages 188/206/207/208/368/370.
www.dehn.de
191