Data Sheet

Features:
· supply voltage 20 ÷ 30 V DC
· designed for cylinders without return spring
· 4x2 outputs independently secured with polymer fuses
· parametric trigger input INPUT (2x4,7 kW)
· technical output of failure
· optical indication of failure
· dedicated to fire alarm power supplies of EN54C series
· warranty - 5 years from the production date
EN54C-LS4 v.1.0/I
EN54C-LS4 sequential module
for actuators without return spring
CODE:
NAME:
EN
Tel. [phone], fax: [phone], www.pulsar.pl, e-mail: [e-mail]
S equential modules EN54C
Pulsar
®
DESCRIPTION
The sequential module is designed for use with electric actuators without return spring used for fire
dampers and smoke vents. These devices are used in fire alarm systems and smoke and heat control
systems.
When switching on the electric actuator, a short-term current surge, exceeding its rated current, may
occur. If multiple electric actuators are connected, the above-mentioned surge current poses a risk of incorrect
operation of the power supply (e.g. triggering the protection of output circuit), despite not exceeding the current
capacity of the power supply.
The sequential switching module causes the receivers connected to its outputs to be sequentially
switched, with a delay of 100 ms. Thanks to this solution, the surge current is reduced to the value ensuring
correct operation of the power supply. Thus, it enables safe connection of additional actuators. All outputs are
independently protected by PTC polymer fuses and have LED diodes signaling the activation of each output.
The module is controlled by a control device (e.g. a CSP control panel) configuring the resistance
at the INPUT connector. The technical output of failure indicates failures at the parametric INPUT input.
Supply voltage
20 ÷ 30 V DC
Current consumption
20 ÷ 30mA @ Uin=20 ÷ 30 V DC
Output voltage
U
AUX
= U
IN
(according to supply voltage)
Output current
4 x 0,5 A
Number of power outputs
4 (OUT1 ÷ OUT4)
Overload protection
polymer fuse
Optical signaling of operation
8x LEDs - outputs condition V1÷V2 (OUT1÷OUT4, green LEDs)
PSU - failure indication (red LED)
Control input
INPUT - parametric, 2x4,7 kW
Operating conditions
2nd environmental class, -10°C ÷50°C
Dimensions (LxWxH)
150 x 52,5 x 27 [mm]
Net/gross weight
0,11kg / 0,13kg
Storage temperature
-20ºC...+60ºC
Additional equipment
Screws x 2
L
H
W