Emerson GXT 10KVA user manual Removing the Cover Plates, Power Cable Installation, Repo Connection

Models: GXT 10KVA

1 32
Download 32 pages 28.08 Kb
Page 18
Image 18

Cable Installation

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.

Table 3 Nfinity power cable and protection ratings

Models NMB1x & NMB4x

Max Input Current

100 A

 

 

Input Protection

100 A

 

 

Max Output Current

100 A

 

 

Input/ Output

Max: 2/0 (70 mm2)

Terminal Details

Min: 6 AWG (16 mm2)

Models NMB5x & NMB8x

Max Input Current

125 A

 

 

Input Protection

125 A

 

 

Max Output Current

125 A

 

 

Input/ Output

Max: 2/0 (70 mm2)

Terminal Details

Min: 6 AWG (16 mm2)

NOTES

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. 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 mm2 (6 AWG)

 

6.6REPO Connection

Refer to the Nfinity user manual for information on connecting the REPO.

14

Page 18
Image 18
Emerson GXT 10KVA user manual Removing the Cover Plates, Power Cable Installation, Repo Connection