ABB 6951 EB-500 Manual page 26

GB
Fig. 2
L
N
1
L
N
L
N
IMPORTANT
The pushbutton switch input must be connected to the
same phase as the voltage supply of the device.
The maximum length of the pushbutton switch line
must not exceed 100 m. Use only pushbutton switches
without contact-parallel lighting.
In order to prevent ripple voltage, the connected line must
be laid separately to the pushbutton switch line.