Powerware Uninterruptible Power Supply Installation And Operation Manual page 52

Note: Supervisory contacts are rated at 2.0 amps at 28 Vdc or 120 Vac and 0.15 amp at 115 Vdc.
Supervisory contacts require external power supply. Internal 24 Vdc is not capable of
supplying contact current.
8--4
SYSTEM
NORMAL
NO
REDUNDANCY
ON
GENERATOR
BYPASS NOT
AVAILABLE
ON
BATTERY
UPS
ALARM
ON
BYPASS
SHUTDOWN
IMMINENT
Figure 8 ---3. Supervisory Contact Module TB2
Powerware 9315 (500 kVA- -750 kVA) Installation and Operation
164201244 REV. D 030101