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DEHN - Surge Protection 920 320 Surge Arrestor 规格指南

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© DEHN, Inc. · 851 S. Kings Highway · Fort Pierce, FL 34945 · PH: 877-927-6510 · www.dehn-usa.com
3
, 
tested
: Tested
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: New
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: Discontinued Model
Product Data Sheet: BLITZDUCTOR® XT – Protection Modules with/without
LifeCheck®
BXT ML4 BE 5 (920 320)
■ LifeCheck SPD monitoring function
■ Optimal protection of four single lines
■ For installation in conformity with the lightning protection zone concept at the boundaries from 0
A
 – 2 and higher
Figure without obligation
Basic circuit diagram BXT ML4 BE 5
Dimension drawing BXT ML4 BE 5
Space-saving combined lightning current and surge arrester module with LifeCheck feature for protecting four single lines sharing a common
reference potential as well as unbalanced interfaces. If LifeCheck detects thermal or electrical overload, the arrester has to be replaced. This status is
indicated contactlessly by the DEHNrecord LC / SCM / MCM reader.
Type
BXT ML4 BE 5
 
Part No.
920 320
 
SPD monitoring system
LifeCheck 
 
SPD class
M
 
 
Nominal voltage (U
N
)
5 V
 
Max. continuous operating voltage (d.c.) (U
C
)
6 V
 
Max. continuous operating voltage (a.c.) (U
C
)
4.2 V
 
Nominal current at 45 °C (I
L
)
1.0 A
 
D1 Total lightning impulse current (10/350 µs) (I
imp
)
10 kA
 
D1 Lightning impulse current (10/350 µs) per line (I
imp
)
2.5 kA
 
C2 Total nominal discharge current (8/20 µs) (I
n
)
20 kA
 
C2 Nominal discharge current (8/20 µs) per line (I
n
)
10 kA
 
Voltage protection level line-line for I
imp 
D1 (U
p
)
≤ 29 V
 
Voltage protection level line-PG for I
imp 
D1 (U
p
)
≤ 27 V
 
Voltage protection level line-line at 1 kV/µs C3 (U
p
)
≤ 18 V
 
Voltage protection level line-PG at 1 kV/µs C3 (U
p
)
≤ 9 V
 
Series resistance per line
1.0  ohm(s)
 
Cut-off frequency line-PG (f
G
)
1.0 MHz
 
Capacitance line-line (C)
≤ 2.7 nF 
 
Capacitance line-PG (C)
≤ 5.4 nF 
 
Operating temperature range (T
U
)
-40 °C ... +80 °C 
 
Degree of protection (with plugged-in protection module)
IP 20 
 
Pluggable into
BXT BAS / BSP BAS 4 base part 
 
Earthing via
BXT BAS / BSP BAS 4 base part 
 
Enclosure material
polyamide PA 6.6 
 
Colour
yellow 
 
Test standards
IEC 61643-21 / EN 61643-21, UL 497B 
 
Approvals
CSA, UL, EAC, ATEX, IECEx, CSA & USA Hazloc, SIL 
 
SIL classification
up to SIL3 *
)
 
 
ATEX approvals
DEKRA 11ATEX0089 X: II 3 G Ex nA IIC T4 Gc 
 
IECEx approvals
DEK 11.0032X: Ex nA IIC T4 Gc 
 
CSA & USA Hazloc approvals (1)
2516389: Class I Div. 2 GP A, B, C, D T4 
 
CSA & USA Hazloc approvals (2)
2516389: Class I Zone 2, AEx nA IIC T4 
 
Weight
24 g
 
Customs tariff number
85363010
 
GTIN
4013364109032
 
PU
1 pc(s)
 
*
)
 For more detailed information, please visit www.dehn-international.com.
We reserve the right to introduce changes in performance, configuration and technology, dimensions, weights and materials in the course of technical progress. The figures are shown without obligation.