−
−
14
−
−
MAIN POWER LINE
TRANSFER SWITCH
UTILITY HIGH LINE
CONNECTING BOX
240V
RECEPTACLE
Utility high line
Meter box
Generator
House circuit breaker
X W Y
X
(X)
(Y)
(G)
(W)
W Y
X W Y
Transfer
switch
240V
4P- Receptacle
120V
appliance
120V
appliance
240V
appliance
OR
Generator
(X)
(Y)
(G)
(W)
240V
4P- Receptacle
W
X
Y