Toshiba 431A operation manual Join the Auxiliary Cabinet with the UPS, Series UPS

10.6Join 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

1

431A

TB1

From Utility

To UPS IN

Power

H1

H2

H3

N

N

L1

L2

L3

L1

L2

L3

Utility

(Optional)

N

To LOAD

From UPS OUT

TB2

H1 H2 H3 N N L1 L2 L3

	(Optional)	N
		L1
Figure 10-6 - Power Cabling Between		L2
Auxiliary Cabinet and UPS		L3

Critical Load

4300 Series UPS

H1	IN
H2
	AC
H3
N		TB1
N	OUT
L1
L2	AC
L3
+	BATT
-

4300 Series Ancillary Cabinets Installation and Operation Manual 29