Wire Size; Mounting - Offgridtec MPPT Pro Duo Bedienungsanleitung

2.3Wire Size

The wiring and installation methods must conform to all national and local electrical code requirements.
PV Wire Size

Since PV array output can vary due to the PV module size, connection method, or sunlight angle, the minimum wire size
can be calculated by the Isc＊ of PV array. Please refer to the value of Isc in the PV module specification. When PV
modules connected in series, the Isc is equal to Isc of PV modules. When PV modules connected in parallel, the Isc is
equal to the sum of the PV modules'Isc. The Isc of the PV array must not exceed the controller's maximum PV input
current. Please refer to the table as below:
NOTE: All PV modules in a given array are assumed to be identical.
＊Isc=Short circuit current(amps) Voc= Open circuit voltage
CAUTION: When the PV modules connected in series, the open circuit voltage of the PV array must not exceed
46V(DR**06N-DDB/DDS),92V
(DR**10N-DDB/DDS).
 Battery and load wire size
The battery and load wire size must conform to the rated current, the reference size as below:
CAUTION: The wire size is only for reference. If there is a long distance between the PV array and the controller
or between the controller and the battery, larger wires can be used to reduce the voltage drop and improve
performance.
CAUTION: For the battery, the recommended wire will be selected according to the conditions that its terminals
are not connected to any additional inverter.

2.4 Mounting

WARNING: Risk of explosion. Never install the controller in a sealed enclose with flooded batteries. Do not install in
a confined area where battery gas can accumulate.
WARNING:Risk of electric shock. When wiring the solar modules, the PV array can produce a high open circuit
voltage, so turn off the breaker before wiring and be careful when wiring.
CAUTION: The controller requires at least 150mm of clearance above and below for proper air flow. Ventilation is
highly recommended if mounted in an enclosure.
Allgemeine Informationen
Offgridtec GmbH
Landshuter Str. 141 – 143
84307 Eggenfelden
WEEE-Reg.-Nr. DE37551136
Offgridtec MPPT Pro Duo
Model
12V/24V-30A-100V
Model
12V/24V-30A-100V
Kontaktinformation
Tel: 08721-7786187
Email: info@offgridtec.com
Web: www.offgridtec.com
GFR: Christian & Martin Krannich
Max. PV input current
30A
Rated Charge Current
30A
Konto Sparkasse Rottal-Inn
Konto: 10188985
BLZ: 74351430
IBAN: DE69743514300010188985
BIC: BYLADEM1EGF (Eggenfelden)
Seite 10 von 19
Max. PV wire
size
10mm /8AWG
2
Battery wire
size
10mm /8AWG
2
Sitz und Amtsgericht
HRB: 9179 Registergericht Landshut
Steuernummer: 141/134/30045
Ust-IdNr: DE287111500
Gerichtsstand: Mühldorf am Inn