Powerware 9155 Table 5. UPS Terminal Block Wiring, Table 4. Input Isolation Transformer Terminal Block Wiring

Input Isolation Transformer Installation

NOTE Input neutral is supplied by the input isolation transformer.

Table 4. Input Isolation Transformer Terminal Block Wiring

Wire Function		Terminal Position	Minimum Wire Size*	Tightening Torque
Input	L1	TB1-1	2 AWG
				25 lb in
	L2 (208V)	TB1-2	2 AWG
				(2.83 Nm)
	L2 (240V)	TB1-3	2 AWG
Output	L1	TB1-4	3 AWG
				25 lb in
	L2	TB1-5	3 AWG
				(2.83 Nm)
	Neutral	TB1-6	3 AWG
Ground	Output	TB1-7	8 AWG	25 lb in
Ground	Input	TB1-8	8 AWG	(2.83 Nm)

*Use only 90°C-rated copper wire. Minimum wire size is based on 120/208 full load ratings applied to NEC Code Table 310-16. Code may require a larger AWG size than shown in this table because of temperature, number of conductors in the conduit, or long service runs. Follow local requirements.

12.Wire the output of the input isolation transformer terminal block to the UPS input terminal block (see Table 5 and Figure 10).

Table 5. UPS Terminal Block Wiring

Wire Function		Terminal	Minimum	Tightening	Conduit Connection
		Position	Wire Size*	Torque	(Entry Size)
Input	Ground	TB1-1	8 AWG
	L1	TB1-3	3 AWG	25 lb in	2” access hole for
	Neutral	TB1-4	3 AWG	(2.83 Nm)	1-1/2” conduit
	L2	TB1-5	3 AWG
Output	L1	TB1-6	3 AWG
	Neutral	TB1-7	3 AWG	25 lb in	2” access hole for
	L2	TB1-8	3 AWG	(2.83 Nm)	1-1/2” conduit
	Ground	TB1-9	8 AWG

*Use only 90°C-rated copper wire. Minimum wire size is based on 120/208 full load ratings applied to NEC Code Table 310-16.

Powerware® 9155 UPS (8–15 kVA) User’s Guide S 164201553 Rev D www.powerware.com 25