socomec Masterys Green Power, Installation And Operating Manual, Page: 13 / 62

ENGLISH
IOMMASGPXX01-GB_01
13
10-40 kVA
3
UNPACKING AND INSTALLATION
OF THE UNIT
3.4 ELECTRICAL REQUISITES.
The installation and the system must comply with national plant regulations.
The electrical distribution panel must have a protection and sectioning system installed for the input mains and the
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from the distribution panel.
The table below show the size of the input protection devices recommended for correct installation.
Size of the input protection devices
UPS Magneto-thermal Magneto-thermal Differential Input/Output Battery Battery
input 1 Aux Mains 1 input 5 cable core size cable core size protection 4
(kVA) (A) (A) (A) (mm 2 ) (mm 2 ) (A)
single parallel
2
single parallel
2
selective type
5
Min Max
3
Min Max
3
10 3/1 32 40 100 125 0,5 6 35 6 35 50 Gr
100 125 16
if common if common aux mains
input input and output
mains mains
15 3/1 32 40 100 125 0,5 6 35 6 35 50 Gr
100 125 25
if common if common aux mains
input input and output
mains mains e uscita
20 3/1 40 63 125 160 0,5 10 35 10 35 50 Gr
125 160 35
if common if common aux mains
input input and output
mains mains e uscita
10 3/3 32 40 32 40 0,5 6 35 6 35 50 Gr
15 3/3 32 40 32 40 0,5 6 35 6 35 50 Gr
20 3/3 40 63 40 63 0,5 10 35 10 35 50 Gr
30 3/3 63 80 63 80 0,5 16 35 16 35 100 Gr
40 3/3 80 100 80 100 0,5 25 35 25 35 100 Gr
1
Recommended magneto thermal switch: four poles with intervention threshold ≥ 10 In
2
In systems with two or more UPSs operating in a redundant or power parallel configuration.
3 Determined by the size of the terminals.
4 protection on the external battery cabinet.
5 Caution! Use type B four-pole selective (S) circuit breakers. Load leakage currents are added to those generated by the UPS and during transitory
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protection. It is advisable in all cases to carry out a preliminary check on the earth current leakage with the UPS installed and operational with the
definitive load, so as to prevent the sudden activation of the above switches.
The UPS is designed for transitory overvoltages in category II installations. If the UPS is part of
the building’s electric circuit or if it is likely to be subject to transitory overvoltages in category III
installations, further external protection must be provided, either on the UPS or in the AC power
supply network to the UPS. In addition, the “Surge arrestor” option, specially designed to protect
against residual overvoltages in category III installations, can be installed in the external manual
bypass cabinet. If used, the distance between the UPS and the centralised 4 kV SPD protections
type 1 must be Up ≤ 4kV is ≥ 15m.
In the event of three-phase distorting loads connected in output, the current on the neutral
conductor may have a value that is 1.5 - 2 times the phase value (also for the input bypass). In this
case, size the neutral cables and the input/output protection adequately.