W-MS24 range • Battery-charging and checking units
The 24 Vdc
battery chargers have
been designed specifically for voice evacuation systems. They are ba-
sed on microprocessor-driven devices and able to charge lead batteri-
es (back-up batteries connected to the voice evacuation system) and,
at the same time, to supply power to auxiliary equipment.
The W-MS24/40 and W-MS24/150 battery chargers meet in full the
requirements of EN54-4 (certificates nos.
), and ensure maximum charging currents of 6
and 12 A respectively. They have standard chassis for installing di-
rectly on 19” racks (height: 2 U).
charging unit, featuring low energy consumption, has
an aluminium cabinet covered in ABS. It ensures continuity of services
for your system, with an exceptionally good price/performance ratio.
The ease of installation and cabling of this unit, with two charging
outputs enabling a larger number of applications and the rated maxi-
mum battery-charging capacity not exceeding 55 Ah, are ideal featu-
res for using it with the PA8506-V integrated voice evacuation system
in medium-sized to small installations, always in accordance with the
applicable provisions of law.
The W-MS24/4 battery–charger, which complies in full with EN54-4
), is suitable for installing directly
on a 19” rack (height: 3 U).
power supply and battery-charging unit consists of
a switching type PSU with protection against short circuits and overlo-
ading and a card for managing controlled dynamic recharging of se-
aled lead batteries (tested regularly) and alarm outputs, a self-testing
function and LEDs for signalling 16 different system statuses.
The white-painted metal cabinet can also house the two batteries, pro-
viding a compact solution for easy and handy wall-mounting.
The W-MS24/WF, which complies with EN54-4 (certificate no.
) must be connected to batteries not exceeding a rated
output of 27 Ah.
Mains power supply
230 Vac ± 15% - 50/60 Hz
Maximum load output current
Main load outputs @24 Vdc
2 x 20 A
6 x 40 A
2 x 4 A
3 x 4 A
Aux load outputs @24 Vdc
3 x 5 A
Battery capacity (minimum/maximum)
24 Ah min – 110 Ah max
65 Ah min – 225 Ah max
7 Ah min – 55 Ah max
18 Ah min – 27 Ah max
Nominal output rectifier current
Mains fault, battery fault, output voltage fault
Low voltage disconnection threshold
21,6 V ± 3%
19” rack mounting (modular units)
Dimensions (W x H x D)
432 x 88 x 399 mm
482 x 133 x 110 mm
395 x 385 x 185 mm