![ABB Busch Watchdog Alarmtech 220 Installation Manual Download Page 21](http://html1.mh-extra.com/html/abb/busch-watchdog-alarmtech-220/busch-watchdog-alarmtech-220_installation-manual_3425196021.webp)
43
42
L1
N
6804 U
1
L
Push Switch
(Push to make)
6805 U
L
N
L1
N
Busch Watchdog
1
N
L
Push Switch
(Push to break)
*
L1
N
Busch Watchdog
1
N
L
Push Switch
(Push to make)
*
L1
N
6401 U-10x
1
N
L
6805 U
N
L
6805 U
N
L
Actuation of a light with Busch Watchdog 180 UP Comfort 6401 U-10x,
6804 U or 6593 U in conjunction with the Busch Watchdog 6805 U slave
unit and a push switch
Expansion of the surveillance range with several 6805 U slave units in
combination with a 6401 U-102 master unit
Examples of circuits, UP
Activating the Busch Watchdog UP 180/6401 U-10x, 6804 U/6593 U with a push
switch. When the switch is operated, the Watchdog is automatically switched
on for the specified time (for example for staircase time switches). For illumi-
nated switches, a separate N is required.
* Neutral conductor is required for the 6401 U-10x.
Activating the Busch Watchdog UP 180/6812 U, Standard or Comfort 6401
U-10x, 6804 U/6593 U with push switches. When the power to the Busch
Watchdog is briefly interrupted by the switch, it is automatically activated for
the specified time.
* Neutral conductor is required for the 6401 U-10x.