Emerson GXT 10KVA User Manual
Cable Installation
14
6.4
Removing the Cover Plates
On the back of the Maintenance Bypass Cabinet, cover
plates are over the input and output terminals (see illus-
tration at right). Remove these using a phillips screw-
driver. Keep screws and plates to one side.
6.5
Power Cable Installation
Refer to Table 3 below when selecting cables.
6.6
REPO Connection
Refer to the Nfinity user manual for information on connecting the REPO.
Table 3
Nfinity power cable and protection ratings
Models NMB1x & NMB4x
Max Input Current
Max Input Current
100 A
Input Protection
100 A
Max Output Current
100 A
Input/ Output
Terminal Details
Max: 2/0 (70 mm
2
)
Min: 6 AWG (16 mm
2
)
Models NMB5x & NMB8x
Max Input Current
Max Input Current
125 A
Input Protection
125 A
Max Output Current
125 A
Input/ Output
Terminal Details
Max: 2/0 (70 mm
2
)
Min: 6 AWG (16 mm
2
)
NOTES
If an output transformer is fitted, the Nfinity Maintenance Bypass has a five-cycle inrush
If an output transformer is fitted, the Nfinity Maintenance Bypass has a five-cycle inrush
current that is 10 times the rated output current. This must be taken into account when
selecting the overload protection device at the AC input supply distribution point. To avoid
random tripping on start up, it is recommended that the AC input supply be protected with a
circuit breaker capable of withstanding this initial inrush.
Transient and steady state earth leakage currents may occur when starting the equipment.
Transient and steady state earth leakage currents may occur when starting the equipment.
This should be taken into account when selecting ground current detection devices, as these
will carry the earth leakage currents of both the UPS equipment and the load.
Table 4
GXT 10kVA power cable & protection ratings
208V
240V
Max Input Current
45A
44A
Input Protection
60A
60A
Max Output Current
43A
42A
Terminal Block Details
Max: 35 mm
2
(2/0 AWG)
Min: 16 mm
2
(6 AWG)