Stairwell Lighting - ABB CL Series Applications Manual

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.
S1
S2
S3
L
N
K1
Figure 78: Conventional stairwell lighting
h
Up to twelve such stairwell circuits can be implemented
with one CL device.
Circuit examples
K3T
K5
K1
K5 K2T
K4
K2T K3T
6 min
5 s
H1
H2
H3
K5
K4
K5
191