19
External Battery Cabinet Positive
Pole(+),Neutral pole,Negative pole(-),
Min.conductor cross section[m
㎡
]
Max.conductor cross section[m
㎡
]
10
13
21
25
Line input Backfeed protection device
A 4-pole disconnection device with
100A/250VAC, less than 15s break
time and min. 1.4mm clearance will
be used in final installation for
backfeed protection in line input.
M2 input Backfeed protection device
A 2-pole disconnection device with
100A/250VAC, less than 15s break
time and min. 1.4mm clearance will
be used in final installation for
backfeed protection in line input.
Protective Earthing conductor[m
㎡
]
MAX 13
Max.25
Torque for fixing above terminals
(10 1b in)
(18 1b in)
4.3 Operating procedure for connecting with the external
battery
1. The nominal DC voltage of the external battery pack is 288VDC.
Each battery pack consists of 24 pieces of 12V maintenance free
batteries in series. To achieve longer backup time, it is possible to
connect multi-battery packs, but the principle of “same voltage,
same type” should be strictly followed.
2. For B500EVO-100-B/B500EVO-200-B, select the UL1015
8AWG(10mm
2
)/6AWG(25mm
2
) wire respectively or other
insulated wire which complies with AWG Standard for the UPS
battery wirings. The procedure of installing the battery bank
should be complied with strictly. Otherwise there is a risk of
electric shock.
1) If the UPS has an internal battery pack, first of all, disconnect
the internal battery pack DC connectors.
www.upsdirect.com
