Grundfos CU 362 Instrucciones De Instalación Y Funcionamiento página 8

Supply voltage
Unit/
VAC
module
1 × 100-240 VAC ± 10 %,
CU 362 50/60 Hz, PE
(Class 1 equipment)
1 × 100-240 VAC ± 10 %,
IO 351B 50/60 Hz, PE
(Class 1 equipment)
IO 113 24 VAC ± 10 %, 50 and 60 Hz
Related information
4.4.1 Two pumps with analog level sensor and safety float
switches
4.4.2 Two pumps with five float switches
4.3 EMC and earthing
If there is a risk of electrical noise, the CU 362 and the modules in
the control cabinet should be earthed. This is achieved using
screws on a metal back plate, which is earthed with the best
possible earth connection. This must be done for personal safety
and as protection against undesired electrical noise.
Signal cables must be earthed appropriately. The optimum solution
is to fit a clamp to the electrically conducting back plate so that it
lies over the cable and is in contact with the cable screen.
CAUTION
Minor or moderate personal injury
‐
Each pump must be connected to a separate motor
protector or similar protection.
8
VDC
Battery +12 VDC
-
24 VDC ± 10 %