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Multi-wire Branch Circuits
975-0012-01-02 Rev A
C–3
Figure C-2
Multi-wire Branch Circuit Wiring and Current Flow
Figure C-3
120 Vac Inverter Incorrectly Wired in a Multi-wire Branch Circuit
Load Center
L1
L2
Neutral
Ground
120 Vac
120 Vac
15 A
Breaker
(Ganged)
240 Vac
from Grid
Bare - Ground
Single White - Neutral
(Current Flow 0 A)
Black - Hot
(Current Flow 15 A)
Red - Hot
(Current Flow 15 A)
Bare - Ground Splice
White - Neutral Splice
(Current Flow 15 A)
Out-of-Phase current
subtract at this point
(Current Flow 0 A)
15 A
Breaker
(Ganged)
Load Center
L1
L2
Neutral
Ground
120 Vac
120 Vac
15 A
Breaker
(Ganged)
240 Vac
from Grid
Bare - Ground
Single White - Neutral
(Current Flow 10 A)
Black - Hot
(Current Flow 5 A)
Red - Hot
(Current Flow 15 A)
White - Neutral Splice
(Current Flow 15 A)
When unbalanced
current flows through
each leg, only the
difference current
flows through the
neutral return wire.
15 A
Breaker
(Ganged)
Load Center
L1
L2
Neutral
Ground
120 Vac
120 Vac
15 A
Breaker
(Ganged)
Bare - Ground
Single White - Neutral
(Current Flow 30 A)
Black - Hot
(Current Flow 15 A)
Red - Hot
(Current Flow 15 A
White - Neutral Splice
(Current Flow 15 A)
WARNING: FIRE HAZARD
The in-phase currents ADDS
at this point exceeding wire
capacity!
15 A
Breaker
(Ganged)
120 Vac
Inverter or Generator
Summary of Contents for DR1512W
Page 2: ......
Page 3: ...DR Inverter Charger Installation and Operation Manual...
Page 10: ...viii...
Page 18: ...xvi...
Page 38: ...Installation 2 14 975 0012 01 02 Rev A Figure 2 9 DC Grounding...
Page 82: ...4 6...
Page 90: ...A 8...
Page 108: ...B 18...
Page 120: ...IX 2...
Page 121: ......