ZX Fire Alarm Control Panels
Page 40
Document No. 996-174-000-1, Revision: 01
Installation Manual
6.2 Power Supply and Charger
Specification Item
Values
Input Voltage
230V 48-62Hz AC.
1
(or 120V 60Hz AC ).
Voltage tolerance
+ 10% - 15%
Incoming mains fuse
F1 T 2A H 250V 20mm (in AC Mains TB)
Power supply card inputs
24VAC & 7VAC from integral mains transformer.
Power supply card fuses
FS1 T 3.15A H 250V 20 mm
FS2 T 1.6A H 250V 20 mm
FS3 T 5A H 250V 20 mm
Continuous Power supply
Output Rating
2.5 Amps total, comprising:
0.6A battery charging
0.5A Internal circuit boards (2x485 cards + 2x loop driver
cards).
2
1.3A external load
D. C. Output Voltage
19.5 - 26.5 VDC
Max. Ripple Voltage
1.7V peak-peak @ Maximum Output loading.
Battery Charger Output
27.3 VDC 600mA nom at 20 C (temperature compensated -
36mV/°C).
Quiescent current
90mA. + Loop driver / option card c external circuits.
Alarm current
310mA. + Loop driver / option card c external circuits.
3
Standby Batteries
24V sealed, lead acid.
Minimum Capacity - 6Ah (Internally Fitted)
Maximum Capacity - 12Ah (Internally Fitted)
Table 11 – ZX1Se / ZX2Se Power Supply and Charger Specifications
1
With appropriate transformer fitted
2
Depending on the loop protocol, if loop sounders are used the maximum output from each ULD loop driver card will be
470mA. This loop driver and external loop currents must be multiplied by a factor of 1.8 to derive the current draw from
the power supply output or standby batteries. This amount will have to be deducted from the 1.3A external load. The Loop
& Battery Calculator must be used to verify that there is sufficient current available to drive all the output devices on the
loop(s) in alarm.
3
Refer to Section 5.2.3 for a list1recommended batteries and suppliers.
