E2S AlertAlarm A121 Instructions/Service Manual page 5

INSTRUCTION & SERVICE MANUAL
A121 AlertAlarm Sounder
• All models are approved for use as Audible Signal Appliance
for use as General Signaling: UL464A & CSA C22.2 No 205-17
• Type 4 / 4X / 3R / 13, IP66
• 40°C to +66°C / -40°C to +151°F
General Signaling Canada:
A121DC024: -40°C to +55°C / -40°F to +131°F
A121AC230: -40°C to +40°C / -40°F to +104°F
• To maintain Ingress Protection, cable entries must be fitted with suitably rated cable glands or stopping plugs
• EOL Monitoring (DC Only): End of Line Devices may be fitted between the +ve & -ve terminals of the PCBA (See diagram below). Please
ensure that the device legs meet the wire size range stated for the connection terminals and are fitted correctly in order to avoid a short.
Refer to the compatible control panel specification for EOL device values and ratings.
• All DC Units have a blocked diode fitted in their supply input lines which allows reverse polarity monitoring.
• Note that the maximum forward polarity monitoring voltage is 6V. A monitoring voltage greater than 6V may activate the alarm horn sounder
and the 2nd, 3rd or 4th stages.
Model
A121DC024
A121AC230
*Max Operating current for worst-case input voltage; Nominal current at nominal voltage and Tone 12
The units have been tested and approved to DNVGL-CG-0339 & EN54-3:2014
incl. A1:2019 for the installation on ships in the following locations:
Temperature: A, B, C & D (Machinery spaces, control rooms,
accommodation, bridge, inside cubicles,
desks, etc..., pump rooms, holds, rooms with no
heating, Open deck, masts)
Humidity: A & B (All locations)
Vibration: A (Bulkheads, Beams, Deck, Bridge)
EMC: A & B (All locations Including Bridge & open deck)
Enclosure: A, B & C (Control rooms, accommodation, bridge,
engine room, open deck masts, below floor plates in
engine room)
E2S Warning Signals Impress House, Mansell Road, Acton, London W3 7QH
Nominal Voltage Voltage Range
12V dc
11.5 - 54V dc
24V dc
48V dc
115V ac
100- 240V ac
50/60Hz
230V ac
P2 Nominal P3 Nominal
Operating Operating
#
Current
376mA
430mA
223mA
173mA
105mA
The units comply with Solas 74 Chapter II-2, Regulation 7 & Chapter X,
Regulation 3 for installation on ships in the following locations:
Temperature:
Vibration:
EMC:
Enclosure:
0575/2024
Sheet 5 of 6 e2s.com
P2 Max
Operating
# *
Current RMS
440mA
430mA
930mA
453mA
340mA
181mA
212mA
D (Location -25° to +70°C)
A (General Applications)
B (Bridge & Open Deck Zone)
IP56, Salt mist
0097/2024
D221-00-051-IS Issue 6 10/06/2024
P3 Max
Operating
*
RMS
930mA
383mA