ENGLISH
24
The pump must be connected to a device for isolating the power supply, complying with the requirements specified in
standard EN60204-1 paragraph 5.3.2.
The differential switch protecting the system must be correctly sized and must be of the “Class A” type. The automatic
differential switch must be marked with the following two symbols:
Before making the electrical connection, turn off the power and ensure that it cannot be reconnected accidently.
Connect the earth lead before connecting the line leads; if the electropump has to be removed or dismantled, the
earth lead must be removed last.
The installer is responsible for ensuring that the earthing system is efficient and made in compliance with the
regulations in force.
For explosion-proof pumps the electrical and equipotential connection must be made according to standard EN
60079-14.
Before installation and the first start-up of the pump, check the condition of the cable visually to avoid short
circuits.
If the power cable is damaged, it must be replaced by the manufacturer’s service centre or by another qualified
person.
On explosion-proof pumps, make sure that an external earth conductor is connected to the external earth terminal
on the pump.
The section of the earth lead must be at least 4mm², yellow/green.
Make sure that the earth connection is protected from corrosion.
Make sure that all protective equipment has been connected correctly.
Float switches used in potentially explosive environments must be approved for this application.
Set the motor-protective circuit breaker to the rated current of the pump. The rated current is stated on the pump
nameplate.
The supply voltage and frequency are marked on the pump nameplate. The voltage tolerance must be within - 10 %/+ 10 % of the rated
voltage. Make sure that the motor is suitable for the power supply available at the installation site.
All the pumps are supplied with a 10 m cable and a free cable end.
For greater lengths contact the DAB Pumps technical assistance service.
The connections of the pump protection system, such as thermal protections and oil-in-water sensor, are to be provided by the user, who
must use a control panel with suitable characteristics.
6.1 Wiring diagrams
400 D.O.L 50Hz
up to 3kW 2P / 2.2kW 4P
380-480 D.O.L
60Hz
up to 3kW 2P / 2.2kW 4P
400 D.O.L
50Hz from 4kW 2P / 3kW 4P and up
380-480 D.O.L
60Hz from 4kW 2P / 3kW 4P and up
230 D.O.L.
50Hz up to 3kW 2P / 2.2kW 4P
220-277 D.O.L. 60Hz
up to 3kW 2P / 2.2kW 4P
Without sensor
Without sensor
Sensor Version
BL
UE
o
r G
RE
Y
BRO
W
N
BL
ACK
W
H
ITE
W
H
ITE
W
H
ITE
W
H
ITE
BL
ACK
BRO
W
N
BL
UE
o
r G
RE
Y
W
H
ITE
W
H
ITE
BL
ACK
BRO
W
N
B
LU
E or
GR
EY
RE
D
