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EXTINGUISHANT CONTROL SYSTEM

Designed and manufactured to the highest standards in a quality controlled environment and with UL & FM approvals, the Shield A-XT releasing panel offers outstanding value and performance for all small to medium fixed firefighting installations.

With three detection zones as standard, extinguishant release can be configured to activate from any combination of detection zone inputs to allow ( among other combinations) any two from three type activations such as would be required for detection in ceiling void, room and floor void applications.

The extensive configuration options of the Shield A-XT allow the functionality of the system to be extensively modified.

The panel contains a large LED display to enable easy configuration and control which also displays the time remaining until extinguishant release for added user safety.

The countdown timer is duplicated on up to seven remote status units to provide local indication of the system status..

With all of the electronics mounted on a single, easily removable, steel plate Shield A-XT panels are both robust and easy to install..

Shield A-XT is supplied in an enclosure that matches the design and colour of the elite RS range and is available in standard red or optional grey

Construction 1.2mm mild sheet steel
IP Rating IP30
Finish Epoxy powder coated
Colour – lid & box Red RAL 3002 (optional grey
BS 00 A 05 semi-matt)
Mains supply 230V AC or 115V AC
Mains supply fuse 1.6 Amp (F1.6A L250V)
Power supply rating 3 Amps total including battery charge 28V +/- 2V
Maximum ripple current 200 millivolts
Battery type (Yuasa NP) Two 12 Volt 7Ah sealed lead acid in series
Battery charge voltage 27.6VDC nominal
(temperature compensated)
Battery charge current 0.7A maximum
Battery fuse 20mm, 3.15A glass
Maximum current draw from batteries 3 Amps
Quiescent current of panel in mains fail 0.095A
R0V output Fused at 500mA
with electronic fuse
Sounder outputs 24V Fused at 500mA with electronic fuse
Fault relay contact rating 30VDC 1A Amp maximum
Fire relay contact rating 30VDC 1A Amp maximum
Local fire relay contact rating 30VDC 1A Amp maximum
First stage contact rating 30VDC 1A Amp maximum
Second stage contact rating 30VDC 1A Amp maximum
Extract contact rating 30VDC 1A Amp maximum
Zone quiescent current 2mA maximum
Terminal capacity 12 AWG
Number of detectors per zone Dependent on type (maximum 32)
NAC rating 0.5A per circuit
Detection circuit end of line 6K8 5% ½ Watt resistor
Monitored input end of line 6K8 5% ½ Watt resistor
Sounder circuit end of line 10K 5% ¼ Watt resistor
Extinguishant output EOL 1N4004 Diode
No. of initiating circuits 3
No. of NAC circuits 2 x 1st Stage, 1 x 2nd Stage
Extinguishant release output Fused at 1 Amp
Extinguishant release delay Adjustable 0 to 60 seconds (in 5 second steps)
Extinguishant release duration Adjustable 60 to 300 seconds (in 5 second steps)
SIL, AL, FLT, RST inputs Switched -ve, max resistance 100 Ohms
Zone normal threshold 8K ohms to 1K ohm
Detector alarm threshold 999 ohms to 400 ohms
Call point alarm threshold 399 ohms to 100 ohms
Short circuit threshold 99 ohms to 0 ohms
Monitored inputs normal threshold 8K ohms to 1K ohm
Monitored inputs alarm threshold 999 ohms to 100 ohms
Monitored inputs Short circuit threshold 99 ohms to 0 ohms
Status unit/Ancillary board connection Two wire RS485 connection
Status unit power output Fused at 500mA with electronic fuse

Panels

Product Code Description Size (mm)
S115R-EXT Surface mounting panel – Red 115V 368 x 310 x 90
S230R-EXT Surface mounting panel – Red 230V 368 x 310 x 90
S115G-EXT Surface mounting panel – Grey 115V 368 x 310 x 90
S230G-EXT Surface mounting panel – Grey 230V 368 x 310 x 90

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