Electrical Connection - Grundfos UP 200 Serie Instrucciones De Instalacion Y Operacion

4.4 Electrical connection

The electrical connection and protection should
be carried out by a qualified electrician in
accordance with the latest edition of the National
Electrical Code, local codes and regulations.
WARNING
Never make any connections in the
pump terminal box unless the power
supply has been switched off.
The pump must be grounded.
The pump must be connected to an
external main power switch.
The operating voltage and frequency are
marked on the pump nameplate. Make sure that
the motor is suitable for the power supply it is
being installed to.
The pump should be grounded to protect against
indirect contact and a ground fault interrupter
can be used as extra protection.
Dual-voltage pump (single-phase)
All single-phase pumps are equipped with built-
in, automatic resetting, thermal overload
protection. The pump is protected at both 115 V
and 230 V. The pump may also be protected by
using an external contactor or motor starter.
If the pump is protected by means of a motor
starter, the starter must be set to the current
consumption of the pump. The current
consumption is stated on the pump nameplate.
Figures 4 and 6 show the possible connections.
All UP Series 200 pumps (fig.
with a dual-voltage terminal box. The voltage is
changed by the orientation of the jumpers as
shown in fig. 9. All pumps are equipped with an
internal automatic resetting thermal overload
switch (terminals P1 and P2).
N
L
T1 T5 T3
P2 P1 T4
Fig. 3 UP Series 200 dual-voltage terminal
box (1 x 115 V supply)
8
3 and fig. 5) come
Jumpers
for 115 V
operation
T2 T8
Wiring diagram
Figure 4 shows the electrical connections when
using built-in motor protection with 1 x 115 V
supply.
L
Capacitor
P1
P2
T1
Fig. 4 Electrical connections (1 x 115 V
supply)
N
L
P2 P1 T1 T5 T3 T4
Fig. 5 UP Series 200 dual-voltage terminal
box (1 x 230 V supply)
N
T5 T4 T8
T3 T2
Jumpers
for 230 V
operation
T2 T8