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Connection diagrams
LGK16...
LOK16...
20/24
Building Technologies Division
Infrastructure & Cities Sector
GP
IV
b
L1
EK1
3
21
AL
H
EK2
Si
L
N
Caution!
Do not press lockout reset button (EK...) for more than 10 seconds!
1) When used in connection with QRA53.../QRA55..., earthing of terminal 22 is
mandatory!
SB
EK1
L1
3
AL
H
Si
L
N
Caution!
Do not press lockout reset button (EK...) for more than 10 seconds!
SB
1
AS
br1
a
b
ar2
ar1
XV
I
b
a b
a
4
12
6
W
d1
LP
R
M1
M2
N
5
13
14
fr1
XIII
a
b
b a
XII
a
a
b
NTC
AR
br2
VIII
X
II
M
E
b
a
a
b
a
b
BR
A
2
16
17
18
19
1(3)
Z
ZBV
BV1
1
AS
br1
**I
XV
a
b
a
b
a
b
ar1
ar2
4
12
6
W
M1
R
B
LP
N
13
5
14
fr1
b
a
a
b
IX
XII
II
XI
XIII
IV
b
a
a
b
b
AR
br2
M
E
BR
A
21
2
15
16
1 (3)
EK2
Z
22
7
1
d2
5
fr2
fr3
VII
V
III
ar3
VI
a
b
a
b
a
b
SM
9
11
10
20
LR
SA
v
a
z
m
LK
M
BV2
BV3
7785a06/0305
BV1
BV2
22
7
V
FR
M2
fr3
fr2
NTC
X
VI
V
III
aa
b
a
b
a
b
a
20
18
19
9
LR
SA
a
z
v
M
BV2
BV1
BV3
ION
15
24
23
1)
QRA5...
2
M
4
3
22
24
15
23
V
a
b
XIV
a
b
b
a
M
8
RAR9...
+
23 24
a
b
XIV
a
b
VII
a
b
ar3
VIII
b
a
b
SM
M
11 10
17
8
m
L
7785a07/0908
CC1N7785en
06.03.2012
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