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Siemens PAD-3 Installation, Operation And Maintenance Manual page 8

Distributed power module nac expander
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Auxiliary Power Output
Operating Voltage Range: Special Application 18-28 VDC
Compatible devices: TRI-B6R (P/N 500-893536), TRI-R (P/N 500-896224)
Current:
3 amps max (set to shutdown when AC power fault, battery rating up to 7.0 A.H.)
1.5 amps max (set to shutdown when AC power fault, battery rating up to 15 A.H.)
0.17 amps max (set to on when AC power fault, 24 hours standby, battery rating 7.0 A.H.)
0.44 amps max (set to on when AC power fault, 24 hours standby, battery rating 15 A.H.)
(Refer to Section 6.2, Battery Size Calculation)
Power limited
Supervised for ground fault and short
Ripple: 0.1 VAC maximum
Ground fault impedance: 24K ohms (+), 12K ohms (-)
Note: The auxiliary power is for supplementary purposes only if it is configured to switch off
when AC is lost.
Common Trouble Relay
Contact Rating:
2.5A, 30 VDC/VAC maximum, resistive
Form "C" Contact
AC Fail Relay
Contact Rating:
2.5A, 30 VDC/VAC maximum, resistive
Form "A" Contact
4

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