Toshiba Comprehensive Guide to Power Supply Terminal Blocks and Wiring for G8000

11.1Terminal Blocks and Power Cables

Note: Always consult your site specific, local, state, and NEC electrical codes for wiring, cabling, and circuit protection device requirements.

The terminal blocks for the 100/150/225 kVA UPS are shown in Figure 11.2. The terminal blocks are located inside, at the bottom of the UPS. If the UPS has terminal buses see Table 11.4 for lug recommendations.

Recommended external cable size and tightening torque for a single battery string are listed in Table 11.1–11.3. For two or more battery strings consult with Toshiba Technical Support. Ensure that your installation adheres to local and NEC electrical codes.

Use only copper wires for external cables.

1	2	3	4	5	6	7	8	9	10	11	12	13
1	2	3	4	5	6	7	8	9	10	11	12	13

U

V

W

U

V

W

N

U

V

w

N

-

+

BATTERY

AC INPUT

BYPASS INPUT

AC OUTPUT

FIGURE 11.2 - TERMINAL BLOCKS OF 100/150/225 kVA UPS

TABLE 11.1 RECOMMENDED CABLE SIZE & TIGHTENING TORQUE FOR 100 kVA UPS

Block Number

Cable Size

Tightening Torque

1

AWG 1/0 or larger

275 in-lbs (3.2 kg-m)

2

AWG 1/0 or larger

275 in-lbs (3.2 kg-m)

3

AWG 1/0 or larger

275 in-lbs (3.2 kg-m)

4

AWG 1/0 or larger

275 in-lbs (3.2 kg-m)

5

AWG 1/0 or larger

275 in-lbs (3.2 kg-m)

6

AWG 1/0 or larger

275 in-lbs (3.2 kg-m)

7

AWG 1/0 or larger

275 in-lbs (3.2 kg-m)

8

AWG 1/0 or larger

275 in-lbs (3.2 kg-m)

9

AWG 1/0 or larger

275 in-lbs (3.2 kg-m)

10

AWG 1/0 or larger

275 in-lbs (3.2 kg-m)

11

AWG 1/0 or larger

275 in-lbs (3.2 kg-m)

*12

TWO AWG 3/0 or larger

275 in-lbs (3.2 kg-m)

*13

TWO AWG 3/0 or larger

275 in-lbs (3.2 kg-m)

NOTE: Maximum cable size is AWG 2/0

*One battery string (see note, pg. 35, if using multiple battery strings)

30 G8000 Series Installation and Operation Manual