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BETA Protecting
Overvoltage Protection Devices
Combination surge arresters, type 1 and type 2
6/6
Siemens ET B1 · 10/2008
6
*
You can order this quantity or a multiple thereof.
■
Selection and ordering data
■
Dimensional drawings
■
Schematics
Version
Discharge
capacity
MW DT Order No.
Price
per PU
PG PU PS*/
P. unit
Weight
per PU
approx.
kA
Unit(s) Unit(s) kg
Combination surge arresters
1
P
For 1-wire systems
N
with remote signaling
25
2
A
5
SD7 441-1
008 1
1
0.356
2
P
For TN-S and TT systems
with remote signaling
100
4
B
5
SD7 442-1
008 1
1
0.770
3
P
For TN-C systems
with remote signaling
75
6
A
5
SD7 443-1
008 1
1
1.040
4
P
For TN-S and TT systems
with remote signaling
100
8
A
5
SD7 444-1
008 1
1
1.430
1
P
2
P
3
P
4
P
RS = remote signaling
1
P
2
P
3
P
4
P
RS = remote signaling
72
36
108
144
I2_13817a
45
90
99
43,5
6,7
64
RS
PEN
L1
I2_15519
12 14
11
RS
PE
L1
N
I2_12568b
12 14
11
RS
L1
L2
L3
PEN
I2_12569b
12 14
11
RS
PE L1
N
I2_12570b
L2
L3
12 14
11
RS
© Siemens AG 2008