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BATTERY WIRING EXAMPLES
• Never install extra washers between the terminal
mounting surface and the battery cable lug—
the connection must be direct and secure.
• Always install breakers or fuses within the
positive battery cable.
• Torque 67.4 mm
2
(2/0 AWG), 107 mm
2
(4/0 AWG),
or larger code-approved cables rated 75°C or
higher to 6.77 Nm (60 inch-pounds)
In renewable energy systems, batteries are connected to each other in one of three ways:
• Series (voltage increases, amperage stays the same as a single battery)
• Parallel (voltage stays the same as a single battery, amperage increases)
• Series/Parallel (both voltage and amperage increase)
Voltage remains at 12 Vdc 200 Ah + 200 Ah + 200 Ah + 200 Ah=800 Ah
12 Vdc
200 Amp-hours
12 V + 12 V + 12 V + 12 V = 48 Vdc Amp-hours remain at 200
Two strings of batteries in series are connected in parallel. The voltage increases to 48 Vdc and
the amp-hours increase to 400.
SERIES
PAR
ALLEL
SERIES/P
AR
ALLEL
Battery Cable Lug
Lock Washer
Flat Washer
Nut
Insulator
Stud
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12 Vdc
200 Amp-hours
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12 Vdc
200 Amp-hours
12 Vdc
200 Amp-hours
12 Vdc
200 Amp-hours
12 Vdc
200 Amp-hours
12 Vdc
200 Amp-hours
12 Vdc
200 Amp-hours
12 Vdc
200 Amp-hours
12 Vdc
200 Amp-hours
12 Vdc
200 Amp-hours
12 Vdc
200 Amp-hours
12 Vdc
200 Amp-hours
12 Vdc
200 Amp-hours
12 Vdc
200 Amp-hours
12 Vdc
200 Amp-hours
Summary of Contents for GTFX2012E
Page 1: ...International Series GTFX and GVFX Grid Interactive Inverter Charger Installation Manual ...
Page 22: ...20 notes ...
Page 31: ...29 Parallel Quad System ...
Page 33: ...31 Three Phase System ...
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Page 52: ...50 this PAGE INTENTIONALLY LEFT BLANK ...
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