081505C
164201554---8
DESCRIPTION:
DATE:
DRAWING NO: SHEET:
REVISION:
INTERFACE WIRING INSTALLATION
NOTES AND TERMINAL LOCATIONS
8of13
Installation Information
A-40
EATON Powerware
®
9390 UPS (100–160 kVA) Installation and Operation Manual S 164201554 Rev E powerware.com
15. 120 Vac should be provided from the critical bus by facility planners or the customer. See
Tab l e W .
Table W. Typical Maintenance Bypass Panel Key Switch Control Wiring
Neutral
Key
Switch
Lamp
120 VAC
Fused
TB2
Output
Contactor
K3
910
Solenoid
MAINTENANCE BYPASS PANEL
(PROVIDED BY OTHERS)
UPS
NOTE:THEREDOKTOGOTO
MAINTENANCE BYPASS
ILLUMINATES ONLY WHEN THE
UPS MODULE IS NOT ONLINE (K3
OUTPUT CONTACTOR IS OPEN).
K3 AUX CONTACT RATING
Switched Voltage: 120 Vac at 6A Maximum
240 Vac at 4A Maximum
24 Vdc at 6A Maximum
Minimum Wire Size: 22 AWG
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