User Manual
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Building Technologies Division CC1N7808en
Infrastructure & Cities Sector 13.05.2016
Connection diagram (cont’d)
No. Special application
N 7 3 1 6 5 2 4 10 8 9 13 11 12
M
III
III IV
~
7808d04/1004
SQN4x.x4xAxxxx
4
LK
No. TMG740 / TMO720 (burner control of other manufacture)
2-stage operation Prepurging at nominal load position «NL»
A
TMG740 / TMO720
8
13 14
15
8
SQN3x.x3xAxxxx
M
NL
4
6
7808a10/1004
9
V
BV1
1
12
432
IV
5
III
N
II
I
a1
a2
6
ba
17
B
bbaa
M
L2
1)
2)
21
b1
LK
1) Cams of switches III and IV are rigidly connected
2) TMO720 terminal no. 6
TMG740 terminal no. 21
NL
KL
zu
II
IV
I
III
entspr. 5°
IV
III
III
IV
V
I
V
IV
III
LKP
II
t
7808d03/0104
1)
TMG... and TMO... are devices of other
manufacture, neither made nor supplied by
Siemens. Combination with the type of
Siemens actuator proposed here must be
checked with the supplier of the TMG... or
TMO... while taking into consideration safety
aspects and the current burner control
version.
The user assumes full responsibility for this
application.