997-492-000-5, Issue 5
June 2009
35
EN 54 & ISO 7240 2-8 Zone Conventional Fire Panel - Installation & Configuration Manual
Electrical:
Classification: A combination of Installation Class 1
and Class 2 (panel must be earthed).
Conductor size: Compatible with cable conductor
sizes: 0.5mm
2
to 2.5mm
2
.
Supply Rating:
Mains supply to the panel is to be provided via an external,
double-pole, mains-isolation unit. The supply rating is:
230V~ (ac) ±15%, 50/ 60Hz, 1.6A.
Power Supply Specification:
Input Fuse rating: T 1.6A H 250V
Output ratings:
Output voltage: 18.5 - 28.5Vdc
Output current: 1.8A (includes charger current - charger
disabled during alarm)
Ripple voltage: 200mV (peak-to-peak)
Output Ratings - Charger:
Charger voltage: 27.3Vdc at 20°C (temperature-
compensated at -3mV/°C/cell)
Charger current: 0.4A
EN54 Battery Wiring Test Impedance: 0.8 Ohm
EN54-4 PSU Loadings:
I
max(a)
= 350mA @ 27Vdc
I
max(b)
= 1.8A @ 27Vdc
Range of battery size charged to 80% in 24hrs:
2.8Ah - 7Ah
Recommended Standby Battery Sizes:
24 hour standby period - 2.8, 3.3 or 7Ah
72 hour standby period - 2.8, 3.3 or 7Ah.
Note 1: Internal batteries - sealed lead-acid types are
recommended. The following manufacturers/ type are
recommended: Yuasa-NP, Fiamm FG and Jackyl.
Note 2: To ensure compatibility with the battery wiring test
batteries are to be 2.8Ah or greater. However,
smaller Ah sizes will be compatible if the
manufacturer’s stated initial charged internal
resistance per battery is less than 80mOhms.
Note 3: The batteries should be replaced at intervals not
exceeding four years. Their lifetime is dependent upon
the ambient temperature; refer to manufacturer’s
technical specification for guidance.
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