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4300 Series Ancillary Cabinets Installation and Operation Manual
10.6 Join the Auxiliary Cabinet with the UPS
The Toshiba Auxiliary Cabinet (431A) is equipped with four 14 mm mating holes located on the front and
back of the left and right sides of the cabinet.
1. Remove the top and bottom 431A Cabinet Front panels.
2. Remove the cable access plate at the lower-front right side of the 431A Cabinet. (See Figure 10.5)
3. Remove the cable access plate at the lower-front left side of the UPS Cabinet.
4. Position the 431A cabinet to the left of and adjacent to the UPS Cabinet.
5. Align the four 0.63 in (14 mm) bolt holes on the right side of the 431A Cabinet with the matching four
14 mm bolt holes on the left side of the UPS Cabinet.
6. Bolt the cabinets together with four 3/8-16 in. x 2 in. long bolts.
7. Select the power cables per Table 10.2 /Table 10.3. Cable size for the UTILITY and LOAD terminals
are dependant on the Input/Output Voltages to the transformers. The UPS Input/Output cables will be
the same size: 3Phase/4Wire 208/120V.
8. Run the power cables from UPS power terminals TB1 to 431A Cabinet power terminals TB1 per Fig-
ure 10-6.
9. Run the appropriately sized power cables from 431A TB2 to the Utility and Load per Figure 10-6.
Figure 10-5 - 431A Cable
Access Plate
Figure 10-6 - Power Cabling Between
Auxiliary Cabinet and UPS
Utility Power
L1
L2
L3
N
(Optional)
Critical Load
N
L1
L2
L3
(Optional)
1
431A
TB1
To UPS IN
From Utility
TB2
From UPS OUT
To LOAD
H1 H2 H3 N N L1 L2 L3
H1 H2 H3 N N L1 L2 L3
4300 Series UPS
TB1
H1
H2
H3
N
AC OUT AC IN
N
L1
L2
L3
+
-
BATT