CONNECTION POWER SUPPLY TO CONTROLLER
CHECKS BEFORE CONNECTION
·
The connection cable must meet CEI Std. 2022 and be of the shielded four-core type (three phases plus
earth).
·
The cable cross section must be suited to the power rating of the controller installed.
·
The power supply network protection upstream of the controller is to provide fuses having the values in
-
dicated in the following table. The fuse is to be class gG and with the same characteristics as the
SIEMENS 3Naxxxx reference fuse.
·
The setting of the magnetothermal and differential protection upstream of the controller must be suited
to the power rating of the controller installed.
Differential current ³ 30 mA
version inst. power Ir (therm.) Im (magn.) Cable cross section
External
network fuse
SDLP 3,8 kVA (380 500 Vca) 7,5 A 140 A 2,5 mm
2
(13 AWG) 16 A
SDMP
7 kVA (380 500 Vca) 13,5 A 220 A 4 mm
2
(11 AWG) 20 A
7 kVA (220 Vca) 23 A 350 A 6 mm
2
(10 AWG) 25 A
SDMP 9 kVA (380 500 Vca) 16 A 250 A 6 mm
2
(10 AWG) 25 A
SDHP
DDMP
16,5 kVA (380 500 Vca) 29 A 425 A 10 mm
2
(7 AWG) 40 A
SDHP
16,5 kVA (400 500 Vca)
SMART X1
29 A 425 A 10 mm
2
(7 AWG) 40 A
DDHP 31,5 kVA (380 500Vca) 55 A 800 A 25 mm
2
(3 AWG) 63 A
·
The mains voltage must correspond to the one on the data plate next to the connection terminal strip.
INSTALLATION C3G Plus
2-2 08/0702
INSTALLATION 4.
4. CONNECTION TO POWER MAINS