New Products

BLITZDUCTOR ® XT LifeCheck ® Modules
BXT ML2 MY 250
+
1
1´
Pluggable DIN Rail Mounted SPDs
2
9
3
4
2´
protected
3´
4´
45
12 51
(2/3 mods.)
• LifeCheck SPD monitoring
• Distinctive “Y“ circuit
• For installation in conformity with the
lightning protection zones concept at
the boundaries from 0 B – 2 and higher
Basic circuit diagram BXT ML2 MY
Dimension drawing BXT ML2 MY
Space-saving surge arrester module with LifeCheck feature for protecting two lines of stranded signal
interfaces up to 250 V a.c. If LifeCheck detects thermal or electrical overload, the arrester has to
be replaced. This status is indicated contactlessly by the DEHNrecord LC / MCM reader.
Type BXT ML2 MY 250
Part No. 920 289
SPD class
V
SPD monitoring system
LifeCheck
Nominal voltage (U N )
250 V
Max. continuous operating d.c. voltage line-line (U C )
620 V
Max. continuous operating d.c. voltage line-PG (U C )
320 V
Max. continuous operating a.c. voltage line-line (U C )
500 V
Max. continuous operating a.c. voltage line-PG (U C )
250 V
Nominal current at 45°C (I L )
3.0 A
C2 Total nominal discharge current (8/20 μs) (I n )
5 kA
C2 Nominal discharge current (8/20 μs) per line (I n )
2.5 kA
Voltage protection level line-line at 1 kV/μs C3 (U p )
≤ 1100 V
Voltage protection level line-PG at 1 kV/μs C3 (U p )
≤ 1200 V
Cut-off frequency line-line (f G )
20.0 MHz
Capacitance line-line (C)
≤ 300 pF
Capacitance line-PG (C)
≤ 16 pF
Operating temperature range
-40°C...+80°C
Degree of protection (with plugged-in protection module) IP 20
Pluggable into
base part
Earthing via
base part
Enclosure material polyamide PA 6.6
Colour
yellow
Test standards IEC 61643-21 / EN 61643-21
920 289
BXT ML2 MY 250
BXT ML2 MY 250
920 289
Überspannungsableiter-Modul BLITZDUCTOR XT mit "Y"-Schaltung
*) For more detailed information, please refer to www.dehn.de/en/sil/ and page 210
Accessories for BLITZDUCTOR ® XT LifeCheck ® Modules
BXT BAS
Base part as a very space-saving,
four-pole, universal feed-through
terminal for the insertion of a protection
module without signal
interruption.
Type
BXT BAS
Part No. 920 300
Colour
yellow
DRC MCM XT
DIN rail mounted device with integrated
LifeCheck sensor for condition
monitoring of max. 10 Life -
Check-equipped BXT arresters.
Type
DRC MCM XT
Part No. 910 695
Colour
grey
DRC LC M3+
Portable device with LifeCheck
sensor for flexible use. Fast and
easy testing of LifeCheck-equipped
arresters.
Type DRC LC M3+
Part No. 910 653
Dimensions of
storage case 340 x 275 x 83 mm
For ”Accessories for BLITZDUCTOR XT LifeCheck modules“, please also refer to pages 188/206/207/208/368/370.
204 www.dehn.de