0ML190480RUENUC page19/24
SECTION5
CONNECTION TO UPS SYSTEM
The ground terminal of battery cabinet must be connected with ground terminal of UPS cabinet.
NEC article 250 for identify grounding system and sizing grounding conductors
POWER CABLE CONNECTION
Table4‐sizingconductorbattery
batterycabinet OCPdevice* Fieldwiring boltsize torque
Model A [q.ty]xAWG in/mm lbf‐ft/Nm
BBX1900480VULL63U(55Ah) 200A4/0or[2]x2
3/8"/10 22/30
BBX1900480VULL83U(100Ah) 300A[2]x2/0
* Included in battery cabinet
cablesaretobeconnectedtothefieldterminalsthroughListedcablelugssuitableforcable
size.Whenusingcrimptypelugs,followsthemanufacturer’sinstructionsforbothcrimptool
andlug
CAUTION: Use at least 75
o
C rated copper wire. Minimum wire size is based on full load ratings applied to
NEC Code Table 310-16. Code may require a larger AWG size than shown in this table because of
temperature, number of conductors in the conduit, or long service runs. Follow local requirements.
CABLE ENTRY OF BATTERY CABINET IS PROVIDED EITHER FROM BOTTOM OR TOP.
Only properly trained and qualified personnel should perform the UPS installation and initial
start up
1) Make sure that the UPS is not powered.
2) Make sure Battery Circuit breaker is in “off” position
3) Make sure that the cables to connect to UPS cabinet are correctly arranged
4) Make sure the cables are correctly marked with polarity indication (+ and – or red and
black)
5) Connect positive terminal of battery cabinet (+) with positive terminal of UPS cabinet,
connect negative terminal of battery cabinet (-) with negative terminal of UPS cabinet
(see figure).
DO NOT CLOSE BATTERY CIRCUIT BREAKER BEFORE UPS IS OPERATING
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