Installation and operating instructions Wilo-TOP-S/-SD/-RL/-I 37
English
• The setting of any thermal tripping that is fitted must correspond to the maxi-
mum current (see rating plate) of the speed stage at which the pump is being
operated.
Motor protection tripping devices
If Wilo tripping units SK 602 (N)/ SK 622 (N) are present in existing systems,
pumps with full motor protection (WSK) can be connected to them. Perform the
mains connection and also the tripping unit connection (refer to the rating plate
data) in accordance with the circuit diagram fig. 7a:
1~230 V: 320 W ≤ P
1
max ≤ 400 W, with thermal winding contact
Pump with terminal
box type
Tripping SSM Fault
acknowledgement
TOP-S
TOP-SD
TOP-RL
TOP-I
1~230 V
1
(P
1
max ≤ 265 W)
Internal switching off
of motor voltage
-
Automatically, after the
motor has cooled down
2
(P
1
max ≤ 265 W)
Internal switching off
of motor voltage
-
Automatically, after the
motor has cooled down
3
(320 W ≤ P
1
max
≤ 400 W)
Thermal winding con-
tact and external trip-
ping unit (SK602 (N)/
SK622 (N) or other
switch gear/control
device)
-
Manually at the tripping
unit, after the motor on
the SK602/SK622 has
cooled down
on the SK602N/SK622N:
automatically
4
(320 W ≤ P
1
max
≤ 400 W)
Thermal winding con-
tact and external trip-
ping unit (SK602 (N)/
SK622 (N) or other
switchgear/control
device)
-
Manually at the tripping
unit, after the motor on
the SK602/SK622 has
cooled down
on the SK602N/SK622N:
automatically
5
(650 W ≤ P
1
max
≤ 960 W)
All-pole deactivation
by the integral trip
electronics
Tripping the SSM is
performed in paral-
lel with deactiva-
tion of the integral
trip electronics
Manually at the pump,
after the motor has
cooled down
Pump with terminal
box type
Tripping SSM Fault
acknowledgement
TOP-S
TOP-SD
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 volt-
age
7
(305 W ≤ P
1
max
≤ 3125 W)
All-pole deactivation
by the integral trip
electronics
Tripping the SSM is
performed in paral-
lel with deactiva-
tion of the integral
trip electronics
Manually at the pump,
after the motor has
cooled down
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