Wilo Drain STS 100 Einbau- Und Betriebsanleitung Seite 21

Mains fuse (time-lag)
Cable cross-section
Cable diameter
Recommended PG screw
Pump must be earthed in compliance with regulations.
For pumps that are installed for stationary use, the metal pump housing must also be
earthed in accordance with EN 50014. Attach the protective conductor connection (as com-
pliant with EN 60335) to the drill hole labelled with the earth symbol (
handle using a suitable screw, nut, tooth lock washer and standard washer.
Use a cable with diameter of min. 2.5 mm² to 6 mm², or follow the local regulations, to con-
nect the protective conductor connection.
We also advise you to use a residual current operating device.
The switch box for the pump(s) should be obtained as an accessory.
ATTENTION!
P2 3.8 kW: direct starting
P2 3.9 kW: star delta starting
The provisions laid down by your local energy supplier will determine the threshold between
direct and star delta starting.
Motor safety switch (set to the nominal pump motor current indicated on the rating plate).
A standard measuring appliance can be used to switch the thermal winding contact (WSK)
for the thermal monitoring of the motor.
Recommended level: 24 V DC.
Connecting cables should be connected to the leads as follows:
7-lead connection cable:
STS 80 / 100
Lead no. 1
U1
Terminal
Switching type: direct start
10-lead connection cable:
STS 100
1
Lead no.
U1
Terminal
Switching type:
P2 3.8
7 x 1.5
17 mm approx.
PG 21/M
Where you provide your own switch box, you must ensure it meets with
the following energy supplier requirements:
2 3 green/yellow
V1 W1 PE
2 3 4 5
V1 W1 V2 W2
star delta starting
Direct starting possible where switch box is wired as follows:
L1 U1 + W2
L2 V1 + U2
L3 W1 + V2
STS 80
STS 100
[kW]
3.9 P2 8.4
16 A
10 x 1.5
19 mm approx.
PG 29/M
Switch at 230 V AC, max. 2 A.
1.5
4 5
WSK WSK
1.5
6
green/yellow
U2 PE
[kW]
36 A
) and located on the
6
unused
7 8 9
WSK WSK
unused
English
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