Wilo TOP-S Series - Motor Protection Tripping Devices

Installation and operating instructions Wilo-TOP-S/-SD/-Z/-D/-RL/-I 43
English
• The setting of any thermal tripping that is fitted must correspond to the maxi-
mum current (see name plate) of the speed step at which the pump is being
operated.
Motor protection triping devices
If Wilo tripping units SK 602/SK 622 are present in existing systems, pumps with
full motor protection (WSK) can be connected to them. Perform the mains con-
nection and also the tripping unit connection (refer to the name plate data) in
accordance with the circuit diagrams (Fig. 8 d to 8 g).
TOP-D:
Fig. 8 d:
3~400 V: 100 W  P
1
max  550 W, motor terminals in star connection, with WSK ,
Fig. 8e:
3~230 V: 100 W  P
1
max  550 W, motor terminals in  connection, with WSK,
Fig. 8f:
1~230 V: 95 W  P
1
max  360 W, motor terminals in  connection, with WSK,
capacitor fitted
TOP-S/-SD/-Z:
Fig. 8g:
1~230 V: 320 W  P
1
max  400 W, with WSK
Pump with terminal
box type
Tripping SSM Fault acknowl-
edgement
TOP-S
TOP-SD
TOP-Z
TOP-I
3~400 V
6
(P
1
max  270 W)
Internal switching off
of a motor phase
-
• Switch off mains
voltage
• Allow motor to
cool down
•Switch on mains
voltage
7
(305 W  P
1
max
 3125 W)
All-pole switching off
by the integral tripping
electronics
Tripping the SSM is
performed in parallel
with switching off of
the integral tripping
electronics
Manually at the
pump, after the
motor has cooled
down
Pump with terminal
box type
Tripping SSM Fault acknowl-
edgement
TOP-D
8
(P
1
max  85 W)
-
--
9
(85 W  P
1
max
 550 W)
WSK and external trip-
ping unit (SK602/
SK622 or other switch/
control unit)
-
Manually at the trip-
ping unit, after the
motor has cooled
down