4
Recommended current protection.
Input: 175 Amp. 3-Pole AC circuit breaker with 30 kAIC.
Note: If your installation does not include an Isolation Transformer
and a MBP (optional equipment), use a 175 Amp Class “J” current
limiting fuse on each input phase.
Output: 150 Amp 3-pole AC circuit breaker with 30 kAIC.
Recommended wiring for a 104
o
F (40
o
C) temperature environment.
Input wires: 2/0 AWG 90
o
C (194
o
F) rated copper wire.
Output wires: 1/0 AWG 90
o
C (194
o
F) rated copper wire.
Refer to NEC Articles 310-15, 310-16 and 315 for further
information.
Neutral output wires: rate for 173% of output phase current if feeding
all Switch Mode Power Supply loads without power factor
correction.
Ground wires: sized in accordance with NEC Article 250-122 and
Table 250-122.
Maximum cable sizes: 250 kcmil.
Recommended cable lugs and crimping tools. Manufacturer:
Framatome Connectors International (FCI) (see table).
Checklist
Note: Do not install power or battery modules.
Ensure all power wiring is torqued to a minimum of 53 lb-in (6 Nm).
Ensure that the system enable switch and the DC breaker are in the
OFF or STAND-BY position.
Apply utility power to the system input and measure the voltage at
the input terminal block. Record voltages between:
L1 and N:______________ L2 and N:_____________
L3 and N:_______________
Measured voltage must be between 96 and 130. If not, STOP!
Verify correct wiring (correct location of N) from the power
source to the input wiring connections. Repeat Step 3.
Verify clockwise phase rotation using a phase rotation meter.
Turn on system enable switch. Wait 1 minute for system to self test.
Ignore display warning (fault light will be on).
Test the EPO switch. The system enable switch should trip to the
STAND-BY position, and the system should shut down completely. If
not, check the connections and the EPO switch to ensure that they are
installed and functioning correctly.
Successful completion of steps 1 through 6 indicates that the UPS
wiring is properly installed and functioning correctly. Turn off
breakers and switches and shut down utility power to the system
input. See Total Power Off procedure.
Reinstall all wiring access panels on the UPS.
Contact Information
For local, country-specific centers: go to www.apc.com/support/contact
or see the back cover of the operation manual for phone numbers.
Cable Size
(AWG)
Terminal bolt diameter: 8 mm
Cable Lug Type Crimping Tool Die
8 YA8CL2TC38 MD7-34R W8CVT
6 YA6CL2TC38 MD7-34R W5CVT
4 YA4CL2TC38 MD7-34R W4CVT
3 YA3CL2TC38 Y35 U3CRT
2 YA2CL2TC38 MD7-34R W2CVT
1 YA1CL2TC38 MD7-34R W1CVT
1/0 YA25CL2TC38 MD7-34R W25VT
2/0 YA26CL2TC38 MD7-34R W26VT
3/0 YA27CL2TC38 MD7-34R W27VT
4/0 YA28CL2TC38 MD7-34R W28VT
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