Liebert ITA UPS 16kVA User Manual page 23

Figure 2-11 Shorted copper bar 10 for PE terminals of the UPS I/O terminal block
z 3-in 1-out, split-bypass configuration
1. Short the terminal bA, bB and bC of the single POD user terminal block using the shorted copper bar 7, short the
terminal oA, oB and oC using the shorted copper bar 5, and then short mN and bN terminals, two oN terminals
respectively using two shorted copper bars 4, as shown in Figure 2-12.
PE PE
Figure 2-12 Shorted copper bar connection for the single POD user terminal block
2. Connect the live line (main input phase A, phase B, phase C), N line and PE line respectively to terminal mA, mB
and mC of the single POD user terminal block, shorted copper bars 4 of mN and bN terminals, and PE terminals.
3. Connect the shorted copper bar 8 to one end of the shorted copper bar 7 (see Figure 2-12), and connect the live
line (bypass input phase A) to the shorted copper bar 8.
4. Connect the bypass input N line to terminal mN of the single POD user terminal block, and the shorted copper bar
4 of bN.
5. Connect the live line (output phase A), N line and PE line respectively to the shorted copper bar 5 of the single
POD user terminal block, shorted copper bars 4 of the two oN terminals, and PE terminals.
6. Remove all the shorted copper bars 3 from the UPS I/O terminal block, and connect the UPS terminal block of the
single POD with the same silk screen terminal of the UPS I/O terminal block using the one-to-one correspondence
method.
7. As shown in Figure 2-10, you can paste the insulating film (accessory) to the shorted copper bar 10, and insert the
buckles into the corresponding holes on the shorted copper bar 10.
8. As shown in Figure 2-11, you can short two PE terminals of the UPS I/O terminal block using the shorted copper
bar 10 with insulating film, and connect two screw holes of the shorted copper bar 10 to the PE terminals of the single
POD.
Self-distribution
Before carrying out the self-distribution, the protective devices such as the main input MCB, bypass input MCB,
output MCB and maintenance MCB should be prepared by the user. It is recommended to use the 63A main input
MCB, 125A bypass input MCB, and 100A output MCB.
z 3-in 3-out, common source configuration (default)
1. Connect the live line (input phase A, phase B and phase C), N line and PE line respectively to terminal mA, mB,
mC and mN of the UPS I/O terminal block, and PE terminals.
2. Connect the live line (output phase A, phase B, and phase C), N line and PE line respectively to terminal oA, oB,
oC and oN of the UPS I/O terminal block, and PE terminals.
z 3-in 3-out, split-bypass configuration
4 5
mN bN mA bA mB bB mC bC
oN oN oA oB oC
oN oN oA oB oC mN bN mA bA mB bB mC bC
Liebert ITA 16kVA/20kVA User Manual
Chapter 2 Installation
PE
10
7
4 8
15
PE PE