Powerware 650825 kVA E1, E2, E3 E6, E7 Interface Board E8, E12 Single−feed Kit, Backfeed

UNDERSTANDING UPS OPERATION

AC Input to	AC Input to		Battery Aux	Building Alarms
UPS Rectifier	Bypass
3 Wire A−B−C	3 or 4 Wire A−B−C		48V Battery	Alarm Relays
Rotation	Rotation	Bypass	Shunt Trip	X−Slot
		Breaker
A	B		Remote EPO	Interface
		(CB4)
E1, E2, E3	E6, E7,			Interface Board
	E8, E12
Single−feed Kit

Input Breaker	(Not supplied		Static
(CB1)	with the UPS)		Switch
		Fuse		Backfeed
(optional)
				Contactor (K5)
	Input		Input	Input
	Contactor		Contactor	Contactor
	(K1)		(K1)	(K1)
	Rectifier		Rectifier	Rectifier
	Fuse		Fuse	Fuse
Fuse		Fuse		Fuse
	Fuse		Fuse	Fuse
	Inverter		Inverter	Inverter
	Output		Output	Output
	Contactor		Contactor	Contactor
	(K3)		(K3)	(K3)
						AC Output to
					E9, E10,	Critical Load
						D
	Battery		Battery	Battery	E11, E12
Converter		Converter		Converter
Fuse		Fuse		Fuse

Battery Contactor (K2)	Battery Contactor (K2)
UPM 1	UPM 2

E4. E5

C

Battery

Breaker

BATTERY SYSTEM

(Not supplied with the UPS)

Battery Contactor (K2)

	UPS
UPM 3	CABINET

NOTE Callout letters A, B, C, and D map to Table 3-4on page 3−9.

Service Connector

NOTE 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.

Figure 6-5. UPS System – Common Rectifier Feed, Common Battery, Dual-Feed Configuration

6−8 EATON Powerware® 9395 UPS (650–825 kVA) Installation and Operation Manual S 164201725 Rev 2 www.powerware.com