26
Installation
Step 9 - Power Connections
NOTE:
To comply with the NEC, the TriStar MPPT must be installed using wiring methods in accordance
with the latest edition of the National Electric Code, NFPA 70.
!
CAUTION: Risk of Fire and Shock
Connect battery terminals prior to the connection of array terminals. The battery positive (+)
terminal has a red cover, the solar positive (+) terminal has a yellow cover.
REMARQUE :
Pour la conformité CNE, le TriStar MPPT doit être installé selon des méthodes de câblage
conformes à la dernière édition du Code électrique national, NFPA 70.
!
PRUDENCE : Risque d’incendie et de décharge électrique
Branchez les bornes de la batterie avant la connexion des bornes de réseau. La borne positive
(+) de la batterie a un capuchon rouge, la borne positive (+) solaire a un capuchon jaune.
Wire Size
The four large power terminals are sized for 14 - 2 AWG (2.5 - 35 mm
2
) wire. The terminals are
rated for copper and aluminum conductors. Use UL-listed Class B 300 Volt stranded wire only.
Good system design generally requires large conductor wires for the solar and battery con-
nections that limit voltage drop losses to 2% or less. The wire tables in the appendix on pages
51-54 provide wire sizing information for connecting the solar array and battery bank to the
TriStar MPPT with a maximum of 2% voltage drop.
Minimum Wire Size
The NEC requires that the wires carrying the system current never exceed 80% of the conduc-
tors current rating. The table below provides the minimum size of copper wire allowed by NEC
for both TriStar MPPT models when the current equals the full nameplate rating (45 Amps or 60
Amps). Wire types rated for 75°C and 90°C are included.
Minimum wire sizes for ambient temperatures to 45°C are provided in table 3-2 below:
Model
Wire Type
75°C Wire
90°C Wire
TS-MPPT-45
Copper
6 AWG (16 mm
2
)
8 AWG (10 mm
2
)
TS-MPPT-45
Aluminum
4 AWG (25 mm
2
)
6 AWG (16 mm
2
)
TS-MPPT-60
Copper
4 AWG (25 mm
2
)
6 AWG (16 mm
2
)
TS-MPPT-60
Aluminum
2 AWG (35 mm
2
)
4 AWG (25 mm
2
)
Table 3-2 Minimum wire sizes
Содержание TriStar TS-MPPT-30
Страница 2: ...Dimensions in Inches Millimeters...
