Connection Diagram; Connection To External Controllers - Grundfos MAGNA3 Installation And Operating Instructions Manual

5.3 Connection diagram

GFCI
Fig. 11 Example of typical connection, 1 x 230 V ± 10 %, 50/60 Hz
All cables used must be connected in
Note
Note
accordance with local regulations.

5.4 Connection to external controllers

Fig. 12 Connection diagram
Warning
Wires connected to supply terminals, outputs
NC, NO, C and start/stop input must be separated
from each other and from the supply by
reinforced insulation.
Concerning demands on signal wires and signal transmitters,
see section 19. Technical data.
Use screened cables for external on/off switch, digital input,
sensor and setpoint signals.
All cables used must be heat-resistant up to
Note
Note
+185 °F (+85 °C).
14
External switch
Fuse
(min. 10 A, time lag)
3
Max.
24 V DC
24V
N
22 mA
Vcc
Signal
0 - 10 V DC
Vcc
Signal
4 - 20 mA
2
M
M
S/S
A
Max.
250 V AC
2 A AC1
Min.
5 V DC
20 mA
NC N0 C
1