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6 – Wiring
(continued)
1
6-6 External Battery Cabinet Wiring
Warning: External battery cabinets vary. Read the external battery cabinet's documentation before attempting to connect it to the UPS
2
system. Use only external battery cabinets that have been approved by Tripp Lite.
Note: An external battery cabinet is required with model SU120KX2. Contact Tripp Lite for external battery cabinet ordering information.
•
1
De-energize all input and output (AC and DC) of the UPS system and external battery cabinet, and confirm that the external battery cabinet
breaker switch is off. (If the UPS system has already been wired to an AC power source, see
3
•
2
Remove the terminal block covers from the UPS. Remove the front cover and conduit plates (if provided) of the external battery cabinet.
•
3
Connect the positive (+), normal (N) and negative (-) UPS
system connection terminals of the external battery cabinet to the
corresponding positive (+), normal (N) and negative (-) external
4
battery connection terminals of the UPS system. See
and the external battery cabinet's documentation for terminal
block diagrams. See
Section 6-4
6-5
for cable size requirements. Cabling should be protected by
flexible conduit and routed through the appropriate knockouts in
5
the terminal block cover. Warning: Observe proper polarity by
connecting negative to negative, positive to positive and center
point of the battery string to normal "N". Failure to observe
proper polarity will damage the UPS system and create a risk
of personal injury and property damage.
6
Note: Do not bond the battery "N" terminal to the AC power
neutral or ground as damage may result.
•
4
Connect the external battery cabinet's grounding terminal
UPS system's corresponding grounding terminal
(25 mm²) ground cable. Keep the ground cable connected at all
7
times after installation.
5
•
Connect the UPS system's primary grounding terminal to
your facility's earth ground with a 4 AWG (25 mm²) minimum
equipment grounding conductor (EGC) cable within the same
8
conduit used in item 3 above. Keep the EGC cable connected at all
times after installation.
•
6
Replace the conduit landing cover of the external battery cabinet. If
you do not plan to wire the AC input/output of the UPS system at
this time, replace the terminal block cover of the UPS system.
9
6-7 AC Input/Output Wiring (Single UPS—SUS)
•
After de-energizing all input and output (AC and DC) of the UPS
1
10
system, remove the terminal block cover from the UPS system.
11
12
2
•
Remove the UPS system's front bezel to expose the circuit
breakers. First, confirm that the main input circuit breaker switch
Q1
and the bypass input circuit breaker switch
Second, confirm that the manual bypass circuit breaker switch
13
is off. Third, confirm that the output circuit breaker switch
off.
14
12-212-93-3141.indb 14
Section 6-3
for wiring diagrams. See
Section
A
to the
with a 4 AWG
B
Q2
are both off.
Q3
is
Q4
14
Section 8-6
for shutdown instructions.)
3
A
4
1
Q4
Q3
2
B
Q2
Q1
12/28/2012 11:17:25 AM
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