32
EN
SUNSYS PCS2 IM UL Power Conversion System and Storage with Islanding Mode from 33 to 200 kVA - Ref.: IOMSUNPCXX07-EN 01
5. ELECTRICAL INSTALLATION
NOTE!
Before carrying out any operations on the unit read the 'Safety standards' chapter carefully.
5.1 ELECTRICAL REQUIREMENTS
The installation and system must comply with national plant regulations.
The electrical distribution panel must have a sectioning and protection system installed for AC mains.
The tables below show the connection features and the size of the protection devices recommended for correct
installation.
Size of AC input protection
Models
Required overcurrent
protection
Recommended Insu-
lation fault device
AC cable Max
cross-section
Type of cable
Tightening
torque
33 TR
50 A type D
Differential switch
(RCD)
1
0.3 A
Type AC or A
300 kcmil
3 x 4/0 AWG
90 °C
copper wire
20 Nm
66 TR
100 A type D
100 TR
160 A type D
132 TL
315 A type C
Insulation Monitoring
Device (IMD)
200 TL
500A type C
1. It is advisable to carry out a preliminary check on the earth current leakage with the PCS installed and operational with the
definitive configuration (batteries, etc.), so as to prevent the RCD tripping.
The auxiliary power supply socket must be protected with a 10 A magneto-thermal switch, curve C, and from cate-
gory II overvoltages or greater.
DC input protection can be achieved either with a distributed or centralised fuse configuration (see example below).
Size of DC input protection
Models
DC cable Max
cross-section
1
Type of cable
Tightening
torque
Distributed fuses
Centralised fuses
2
33 TR
2 x 4/0 AWG
90 °C
Copper wire
20 Nm
80 A – 1000 V
Ultrafast
80 A - 1000 V Ultrafast
66 TR
160 A - 1000 V Ultrafast
100 TR
250 A - 1000 V Ultrafast
132 TL
2 x 160 A - 1000 V Ultrafast
200 TL
2 x 250 A - 1000 V Ultrafast
1. Determined by the size of the terminals.
2. Standard configuration delivered with the product.
