Brochure

Installation
MAGNA3
7
15
Additional protection
If the pump is connected to an electric installation
where an earth leakage circuit breaker (ELCB) is used
as an additional protection, this circuit breaker must
trip when earth fault currents with DC content
(pulsating DC) occur.
The earth leakage circuit breaker must be marked with
the first or both of the symbols as shown:
Examples of connections
Supply connection
Fig. 11 Example of typical connection, 1 x 230 V ± 10 %, 50/60 Hz
As a minimum, a 10 A time-lag fuse must be installed
due to the start-up power of the MAGNA3.
Connection to external controllers
Fig. 12 Example of connections in the control box
Symbol Description
High-sensitivity ELCB, type A, according to
IEC 60775
High-sensitivity ELCB, type B, according to
IEC 60775
TM03 2397 0312
External switch
Fuse
(min. 10 A, time lag)
ELCB
TM05 2673 3812
NC NO C NC NO C
NL
S/S
M
I
M
A
signal
sensor
Vcc
24V
IN
Mains connection
Alarm
Operation
Start/stop On/off timer
Analog input