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The UPS ground (earth) conductor carries leakage current from the loads in addition to any
leakage current generated by the UPS. Maximum UPS Leakage Current generated by the various
UPS models is shown in Table 1, below.
To limit the total leakage current to 3.5 mA, the load leakage must be limited to the value shown
under Load Leakage Current, for each UPS model, as shown in Table 2, below. If you do not
know the load leakage current, replace the UPS power cord with a power cord that uses an
industrial style locking plug, (such as IEC 309). If you do not have a matching receptacle, have an
electrician install the correct receptacle. The three-wire receptacle that you plug the UPS into
must have a good (low-impedance) ground (protective earth) connection to provide a safe path for
leakage current.
Leakage Current Information
Table 1
U
P
S
M
o
d
l e
7
0 0
a
d n
0 1
0 0
(
) E
5 1
0 0
a
d n
0 2
0 0
(
) E
0 3
0 0
(
) E
7
0 0
(
) U
0 1
0 0
1 ,
0 5
, 0
0 2
0 0
a ,
d n
(
) U
Table 2
U
P
S
M
o
d
l e
7
0 0
a
d n
1
0 0
( 0
) E
5 1
0 0
a
d n
2
0 0
( 0
) E
3
0 0
( 0
) E
0 7
( 0
) U
0 1
0 0
1 ,
0 5
, 0
0 2
0 0
a ,
d n
(
) U
U
P
S
L
a e
a k
0
5 .
1
5 .
2
0 .
0
5 .
0 3
0 0
1
0 .
L
o
d a
L
a e
3
2
1
3
0 3
0 0
2
e g
C
r u
e r
t n
m
A
m
A
m
A
m
A
m
A
a k
e g
C
r u
e r
t n
0 .
m
A
0 .
m
A
5 .
m
A
0 .
m
A
5 .
m
A
24
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