Siemens LOK16.250A27

20/28
Building Technologies Division CC1N7785en
20.11.2017
Connection diagrams (for circuitry variants, see Connection examples)
LOK16...
H
N
C
D
A
L
EK2
AL
21
1
AS
2
1(3)
3
W
R
4
5 6 7
t6
B
A
t7
BV3BV1Z
SA
15
16
17 18
az
M
2019 9
LR
t4
t3
TSA
t5 t1
t11
az
m
11 10
8
22
B
1
v
7785a01/0908
LK
Si
LP
+
141213
t10
SB
P
t3´
t3n
24
m
t13
t12
t16
RAR9...
M1 M2
BV2

Note!
In applications involving air heaters (WLE), or in the case of oil burners with a
maximum throughput of > 30 kW/h, removing wire link B is not permitted.
Caution!
Do not press lockout reset button (EK...) for more than 10 seconds!
Connect the safety valve as specified in the diagram provided by the burner
manufacturer.