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Pluggable DIN Rail Mounted SPDs
BLITZDUCTOR ® XTU
U
250 V
Up
Operating voltage U N
200 V
Usignal
U
150 V
N
100 V
t [time]
50 V
C2
C3
U N
U p line-line for In (8/20 μs) C2
U p line-line for1 kV/μs C3
U N
Operating voltage U N and superimposed signal voltage U signal
0 V 20 V 40 V 60 V 80 V 100 V 120 V 140 V 160 V 180 V
Operating voltage U N
Diagram of the BXTU voltage protection level
BLITZDUCTOR ® XT Base Part
BXT BAS
protected
BXT BAS
1
3
2
4
12 34
4´ 3´ 2´ 1´
2´
4´
1´
3´
protected
90
BXT ML4...
12 7
(2/3 mods.)
28.5
43
BXT BAS
1
3
2
4
1 2 3 4 4´ 3´ 2´ 1´
2´
4´
1´
3´
protected
Dimension drawing BXT BAS
Basic circuit diagram with and without plugged-in
module
The BLITZDUCTOR XT base part is a very space-saving four-pole universal feed-through terminal for
the insertion of a protection module without signal interruption. The snap-in mechanism at the supporting
foot of the base part allows the protection module to be safely earthed via the DIN rail. As
no components of the protective circuit are situated in the base part, maintenance operation is only
required for the protection modules.
• Four-pole version for universal use with
all types of protection modules
• The modules can be plugged in and
removed without signal interruption
• Universal design without protection
elements
920 300
BXT BAS
BXT BAS
920 300
Basisteil 4-polig zur Aufnahme einesAbleitermoduls BLITZDUCTOR XT/XTU
Type
BXT BAS
Part No. 920 300
Operating temperature range
-40°C...+80°C
Degree of protection IP 20
For mounting on 35 mm DIN rails acc. to EN 60715
Connection (input / output)
screw / screw
Cross-sectional area, solid 0.08 - 4 mm 2
Cross-sectional area, flexible 0.08 - 2.5 mm 2
Tightening torque (terminals)
0.4 Nm
Earthing via 35 mm DIN rail acc. to EN 60715
Enclosure material polyamide PA 6.6
Colour
yellow
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, VdS, UL, GOST
* ) only in connection with an approved arrester module
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