Grundfos MTA 100H, Installation And Operating Instructions Manual

Page: 10 / 212

En
gl
is
h (
G
B)
10
6. Electrical connection
The electrical connection should be carried out in
accordance with local regulations.
The operating voltage and frequency are marked on
the pump nameplate. Make sure that the motor is
suitable for the power supply on which it will be used.
The motor must be connected to a motor-protective
circuit breaker.
We do not recommend operation via frequency
converter.
Terminal box positions
The terminal box can be turned to another position.
●
The terminal box can be turned to another
position after delivery.
(
●
) The terminal box cannot be turned to another
position after delivery. The pump must be
ordered with the terminal box in position 3
o'clock.
Fig. 7 Terminal box positions (top view)
Proceed as follows:
1. Remove the bolts securing the motor to the
pump.
2. Turn the motor to the required position.
3. Refit and tighten the bolts securing the motor to
the pump.
The electric motor should be connected to the supply
as shown in the diagram inside the terminal box
cover.
Warning
Never make any connections in the pump
terminal box unless the power supply has
been switched off.
Pump
Terminal box positions
9 o'clock
(standard)
3 o'clock
MTA 30 ● ●
MTA 60 ● ●
MTA 90 ● ●
MTA 120 ● (
●
)
MTA 200 ● (
●
)
MTA 20H ● ●
MTA 40H ● ●
MTA 70H ● ●
MTA 100H ● (
●
)
TM
05
1
759
3
6
11
T
M
05
17
60
36
11
Outlet
Standard
9 o'clock
Outlet
3 o'clock