Direction Of Rotation; Starting - Wilo Sub TWU 3 Instrucciones De Instalación Y Funcionamiento

1~230 V, 50 Hz / 60 Hz, EM version (permanent capacitor)
Power
KW PS
0,37
0,55
0,75
3 ~ Motor 380 V - 400 V - 415 V:
3~ Motor 400 V - 460 V - 415 V:
[KW]
0,37
0,55
0,75
1,10
ATTENTION! An electrical connection error would damage the motor.
Don't cut the power cable between pump and box, because the box includes the
capacitors of the motor (EM version).
Don't forget to earth.
The motor must be protected by a circuit breaker providing thermal and magnetic
protection (provided in single-phase boxes ; must be added with tree-phase
versions).
Connection single-phase EM-Version:
a = Noir,
(FIG. 1): permanent capacitor version for single phase
Connection tree-phase DM-Version:
a = Noir,
(FIG. 2) : tree-phase version : direct start

6. Starting

6.1 Direction of rotation

1 ~: no risk of inversion.
3 ~: To determine that the unit is turning in the right direction, simply check the
discharge pressure, bearing in mind that the pressure is highest in the right
direction.
Or measure the pressure with the discharge valve closed and compare it to the
specified pressure. If there is a reversal, interchange two phase wires in the box
or on the circuit breaker.
ATTENTION! The pressure measured at the borehole outlet with the valve closed is
Permanent
Current at
230 V 50HZ
A microF
0,5 3,75
0,75 4,5
1 5,85
power
[PS]
0,50
0,75
1,00
1,50
b = bleu,
b = bleu,
the pump head at zero flow less the height between ground level and
the water level.
Capacitor
Permanent
60HZ Start
microF microF
16 12,5
20 16
25 25
50 Hz
60 Hz
Current at 400 V
[A]
2,0
2,1
2,5
3,2
c = brun,
c = brun,
ENGLISH
_
_
_
d = vert/jaune
d = vert/jaune
17 (40)