Circuit examples
191
1SVC 440 795 M0100
Stairwell lighting
For a conventional circuit you would need at least five space
units in the distribution board, i.e. one impulse relay, two
timing relays and two auxiliary relays.
The logic relay requires only four space units. A fully
functioning stairwell lighting system can be set up with five
terminals and the CL circuit diagram.
Figure 78: Conventional stairwell lighting
N
L
S1
S2
S3
K3TK1 K2T
K4
K4
K5
K5
K3T
K1
K2T
K5
K5
5 s
6 min
H1
H2
H3
h
Up to twelve such stairwell circuits can be implemented
with one CL device.
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