Helios SR250C User Manual page 4

#1. 1 x No-Break™DC charger and 1 x battery bank
This is the basic connection which is most commonly used, and provides
adequate protection for the majority of systems requiring DC back up in
the event of a mains power failure.
Single battery DC
UPS
#3. 1+1 redundancy using two No-Break™DC
chargers and two battery banks
For super critical ap-
plications
Specifications are subject to change without notice. No liability accepted for errors or omissions.
Alarms Available
Power OK YES
Battery Missing YES
Battery Low YES
Battery Condition Test Fail YES
Alarms Available
YES
Power OK
Battery Missing YES
YES
Battery Low
YES
Battery Condition Test Fail
#2. Peak load connection using 1 x No-Break™DC
charger
Use this connection when there is a connected load with a peak current
likely to exceed 1.5 times the rated current of the charger. Standing
loads are connected normally and an optional external low voltage dis-
connect may be used for the peak load.
DC UPS for high peak
loads
#4 1+1 redundancy for systems with high peak loads
Alarms Available
Power OK YES
Battery Missing YES
YES
Battery Low
YES
Battery Condition Test Fail
Alarms available
Power OK YES
Battery missing YES
Battery low YES
Battery condition test fail YES
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