20 Chapter 3 Electrical Installation
NX UPS Single Module And Parallel System 250kVA ~ 800kVA User Manual
BAT+
BAT-
mA1 mB1 mC1 mN
Main power cabinet
Bypass cabinet
BAT N
bA
bB
bC
oA oB oC oN/bN
mA2 mB2 mC2
Switch extension
bar (4 pcs)
PE
Note:
1. mA1, mB1, mC1, mA2, mB2, mC2, mN: rectifier input
2. bA, bB, bC, bN: bypass input
3. BAT+, BAT-, BAT N: battery input
4. oA, oB, oC, oN: output
5. PE: protective earth
mA mB
mC
Switch Q1 is an
option
Figure 3-1 250kVA ~ 400kVA UPS power cable connection terminals