Grundfos UPS 200 Serie Instructions D'installation Et D'utilisation page 7

4.4.2 UPS 3 x 208-230 V terminal box
Fig. 5
UPS 3 x 208-230 V
terminal box
All UPS pumps with three-phase x 208-230 V
come with a standard module and a speed
switch as shown in fig. 5. All pumps are
equipped with an internal thermal overload
switch (terminals T1 and T2, to be connected to
an external contactor) to protect the pump at all
three speeds.
Wiring diagrams
Figure 6 shows the electrical connections when
using an external changeover contact (safety
circuit) for start/stop push button station.
T1 T2
K
Stop/Start
Fig. 6
External changeover contact
Auxiliary contacts rated for supply voltage.
Figure 7 shows the electrical connections when
using external impulse contacts (momentary
contacts) for start/stop push button station.
T1 T2
K
Stop
Start K
Fig. 7
External impulse contacts
Standard
module
Speed
switch
L3 L2 L1
K
L3 L2 L1
L3 L2 L1
K
L3 L2 L1
4.4.3 UPS 3 x 460 V and 575 V terminal box
P2 P1 L3 L2
T3 T2
T5 T4
Fig. 8
UPS 3 x 460 V and 575 V
terminal box
All UPS pumps with three-phase x 460 V and
575 V terminal boxes (fig. 8) come with a special
two-speed terminal box. The speed is changed
by the orientation of the jumpers as shown on
p. 9. All pumps are equipped with an internal
thermal overload switch (terminals P1 and P2)
to be connected to external contactor.
Wiring diagrams
Figure 9 shows the electrical connections when
using an external changeover contact (safety
circuit) for start/stop push button station.
L1
L2
L3
K
Start/stop
Fig. 9
External changeover contact
Auxiliary contacts rated for supply voltage.
Jumpers
L1
T6 T1
K
L3 L2
P1 T3 T2 T1
P2
7