Installation
Liebert EXL S1
37
User Manual 10H52226UM60 - Rev. 1 - 01/2017
3.2. Currents and suggested cable sizes
For external wiring requirements refer to the local regulations for the selection of the proper
conductors sizes. See Table 1 on page
38
for the max currents and max cable sizes usable in the UPS.
See chap. 9. on page 1
02
for the overload currents.
Connect the line power cables to UPS terminals U, V, W, N.
Connect the bypass line power cables to UPS terminals U1, V1, W1, N.
Connect the load to UPS terminals U2, V2, W2, N. (see Fig.
23
on page
46
).
In case of single input feed, connect jumpers between U and U1, V and V1, W and W1.
Notice
To prevent the overheating of the UPS terminals, the temperature reached by the
selected cables must not exceed 70°C.
Notice
The voltage drop due to the external cables must not exceed 3% of the nominal
voltage.
Notice
To avoid electrical interference:
• power cables (primary input, bypass input, battery, output load cables) should be
routed separately
• communication and data lines should be routed using proper conduits and kept
separate from all power cables.
Notice
The cross section of the ground cables must be selected in accordance with
national and local rules, and coordinated with protection devices installed ahead
of the UPS.
Summary of Contents for Liebert EXL
Page 1: ...Liebert EXL User Manual...
Page 2: ...Liebert EXL UNINTERRUPTIBLE POWER SUPPLY USER MANUAL 10H52226UM60 rev 1...
Page 7: ...Liebert EXL S1 6 User Manual 10H52226UM60 Rev 1 01 2017...
Page 36: ...Preparation For Use Liebert EXL S1 35 User Manual 10H52226UM60 Rev 1 01 2017 BLANK PAGE...
Page 74: ...CONNECTIVITY PANELS Liebert EXL S1 73 User Manual 10H52226UM60 Rev 1 01 2017 BLANK PAGE...
Page 84: ...Normal and safe operation Liebert EXL S1 83 User Manual 10H52226UM60 Rev 1 01 2017 BLANK PAGE...
Page 86: ...Maintenance Liebert EXL S1 85 User Manual 10H52226UM60 Rev 1 01 2017 BLANK PAGE...
Page 94: ...PARALLEL CONFIGURATION Liebert EXL S1 93 User Manual 10H52226UM60 Rev 1 01 2017 BLANK PAGE...
Page 102: ...Options Liebert EXL S1 101 User Manual 10H52226UM60 Rev 1 01 2017 BLANK PAGE...