Thomas & Betts 9395 NOTE, Units, Rating 50/60 Hz, AC input to UPS bypass, Input and output voltage, AC output to critical load, DC input from battery to UPS

For external wiring requirements, including the minimum size of external wiring, seeTable 2-4.The power wiring connections for this equipment are rated at 70°C. If wire is run in an ambient temperature greater than 30°C, higher temperature wire and/or larger size wire may be necessary.

Basic unit rating at 0.9 lagging pF load		Units	Rating 50/60 Hz
		kVA	225	275
		kW	202	247
Input and output voltage		Volts	400/400	400/400
AC input to UPS rectifier (0.98 Min. pF)
Full load current plus battery recharge current		Amps	373	456
(3) phases, (1) ground	A
Minimum conductor size		mm2	120	150
Number per Phase		(each)	(2)	(2)
AC input to UPS bypass
Full load current		Amps	336	410
(3) phases, (1) neutral–if required, (1) ground B	B
Minimum conductor size		mm2	120	150
Number per phase		(each)	(2)	(2)
DC input from battery to UPS		Amps	475	650
(1) positive, (1) negative c	C
minimum conductor size
		mm2	240	300
number per pole		(each)	(2)	(2)
AC output to critical load
full load current		Amps	290	400
(3) phases, (1) neutral–if required, (1) ground d	D
minimum conductor size		mm2	120	150
number per phase		(each)	(2)	(2)

NOTE callout letters A, B, C, and D map to figure 6-5 on page 6-6.

Table 2-4. Input/output ratings and external wiring requirements for the Powerware 9395-275/225 and 9395-275/275

Read and understand the following notes while planning and performing the installation:

•Refer to national and local electrical codes for acceptable external wiring practices.

•Material and labor for external wiring requirements are to be provided by designated personnel.

•For external wiring, use 70°C copper wire. See the appropriate information inTable 2-4. Wire sizes are based on using the specified breakers.

•The bypass feed into this equipment uses three or four wires.The rectifier feed into this equipment uses three wires.The phases must be symmetrical about ground (from a Wye source) for proper equipment operation.

•If the load requires a neutral, a bypass source neutral must be provided. If the load does not require a neutral and there is no neutral conductor connected at the bypass input, a neutral to ground bonding jumper must be installed. DO NOT install both a source neutral and a bonding jumper.

•The UPS cabinet is shipped with a debris shield covering the ventilation grill on top of the unit. Do not remove the debris shield until installation is complete. However, remove the shield before operating the UPS. Once the debris shield is removed, do not place objects on the ventilation grill.

1027212 UPS 225 - 275 kVA 15

Revision B User’s and Installation Guide