Powerware Powerware 9355 manual Chapter Tie Cabinet Installation

Chapter 3 Tie Cabinet Installation

The Powerware 9355 has the following power connections:

S3-phase (L1, L2, and L3), neutral, and ground connection for rectifier/bypass input

S3-phase (L1, L2, and L3), neutral, and ground connection for load output The nominal input/output voltages are:

S120/208 or 127/220 Vac

Output overcurrent protection and disconnect switch must be provided by others.

Figure 9 and Figure 11 beginning on page 15 show the oneline diagrams.

W A R N I N G

Only qualified service personnel (such as a licensed electrician) should perform the UPS installation and initial startup. Risk of electrical shock.

To hardwire the Tie Cabinet:

1.Verify that the electrical connections to the installation site have been properly installed.

2.A wall-mounted, user-supplied, readily-accessible disconnection device must be incorporated in the input wiring.

Compare the circuit breaker ratings to the ones in Table 1 on page 11.

NOTE To accommodate the feature of easy system expandability, it is recommended that initial installation of the Powerware 9355 UPS contain wiring to support the maximum capacity of the UPS cabinet.

3.Switch off utility power to the distribution point where the Tie Cabinet and UPSs will be connected. Be absolutely sure there is no power.

4.Determine your equipment’s grounding requirements according to your local electrical code.

EATON Powerware® 9355 Tie Cabinet (20/30 kVA) Installation Guide S 164201630 Rev A www.powerware.com 7