Toshiba G8000 Series operation manual Battery Bypass Input

Terminal Bus 300kVA

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

U V W - + U V W N U V W

AC INPUT	BATTERY	BYPASS INPUT	AC OUTPUT
3-phase 3-wire		3-phase 4-wire	3-phase 4-wire

The terminal buses shown are located at the top inside of the 300kVA UPS. Dashed line in each terminal stands for side view of screw holes to tighten lugs.

External cable size is recommended in the Table 3. This table shows only the torque to tighten a terminal bus and a corresponding lug. Torque to tighten the cable end in a compression lug shall be specified by the lug vendor recommended in Table 4.

Table 3 - Recommended Cable Size and Tightening Torque for 300kVA UPS.

The tightening torque must be greater than 90 percent of the recommended torque.

Cable Size and Tightening Torque at 300kVA UPS Terminals

Bus Number		Cable Size	Torque to tighten
		(Only copper wires allowed)	the terminal bus
1		Two 4/0 AWG or larger	215-386 in-lbs
2		Two 4/0 AWG or larger	215-386 in-lbs
3		Two 4/0 AWG or larger	215-386 in-lbs
*4		Three 350 MCM or larger	215-386 in-lbs
*5		Three 350 MCM or larger	215-386 in-lbs
6		Two 4/0 AWG or larger	215-386 in-lbs
7		Two 4/0 AWG or larger	215-386 in-lbs
8		Two 4/0 AWG or larger	215-386 in-lbs
9		Two 4/0 AWG or larger	215-386 in-lbs
10		Two 4/0 AWG or larger	215-386 in-lbs
11		Two 4/0 AWG or larger	215-386 in-lbs
12		Two 4/0 AWG or larger	215-386 in-lbs
	NOTE: Maximum cable size is 350MCM.
	*Two battery strings (consult factory if using one battery string).

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