13
5.3.3 Backup fuses
For recommended fuse sizes, see section
5.3.4 Additional protection
If the pump is connected to an electric installation where an earth
leakage circuit breaker (ELCB) is used as additional protection,
the circuit breaker must be of a type marked with the following
symbols:
This circuit breaker is
type B.
The total leakage current of all the electrical equipment in the
installation must be taken into account.
The leakage current of the motor in normal operation can be seen
in section
During start and at asymmetrical supply systems, the leakage
current can be higher than normal and may cause the ELCB to
trip.
5.3.5 Motor protection
The pump requires no external motor protection. The motor
incorporates thermal protection against slow overloading and
blocking (IEC 34-11, TP 211).
5.3.6 Protection against mains voltage transients
The pump is protected against mains voltage transients in
accordance with EN 61800-3 and is capable of withstanding a
VDE 0160 pulse.
The pump has a replaceable varistor which is part of the transient
protection.
Over time this varistor will be worn and need to be replaced.
When the time for replacement has come, R100 and PC Tool
E-products will indicate this as a warning. See
.
5.3.7 Supply voltage and mains
3 x 380-480 V – 10 %/+ 10 %, 50/60 Hz, PE.
The supply voltage and frequency are marked on the pump
nameplate. Make sure that the motor is suitable for the electricity
supply of the installation site.
The wires in the terminal box must be as short as possible.
Excepted from this is the protective earth conductor which must
be so long that it is the last one to be disconnected in case the
cable is inadvertently pulled out of the cable entry.
Fig. 13
Mains connection
Cable glands
Cable glands comply with EN 50626.
•
1 x M40 cable gland, cable diameter
∅
16-
∅
28
•
1 x M20 cable gland, cable diameter
∅
9-
∅
17
•
2 x M16 cable gland, cable diameter
∅
4-
∅
10
•
2 x M16 knock-out cable entries.
Grid types
Three-phase E-pumps can be connected to all grid types.
5.3.8 Start/stop of pump
When the pump is switched on via the mains, it will start after
approx. 5 seconds.
If a higher number of starts and stops is desired, use the input for
external start/stop when starting/stopping the pump.
When the pump is switched on via an external on/off switch, it will
start immediately.
5.3.9 Connections
As a precaution, the wires to be connected to the following
connection groups must be separated from each other by
reinforced insulation in their entire lengths:
Group 1: Inputs
• start/stop
terminals 2 and 3
• digital input
terminals 1 and 9
• setpoint input
terminals 4, 5 and 6
• sensor input
terminals 7 and 8
• GENIbus
terminals B, Y and A
All inputs (group 1) are internally separated from the mains-
conducting parts by reinforced insulation and galvanically
separated from other circuits.
All control terminals are supplied with protective extra-low
voltage (PELV), thus ensuring protection against electric
shock.
TM
03 86
05 200
7 -
TM
0
4
3
0
4
8
3
5
08
ELCB
Torques, terminals L1-L3:
Min. torque: 2.2 Nm
Max. torque: 2.8 Nm
Warning
If the supply cable is damaged, it must be
replaced by qualified personnel.
Warning
Do not connect three-phase E-pumps to a mains
supply with a voltage between phase and earth of
more than 440 V.
Caution
The number of starts and stops via the mains
voltage must not exceed 4 times per hour.
Note
If no external on/off switch is connected,
connect terminals 2 and 3 using a short wire.
