16
8 GbD-'02
POWER SUPPLIES
PRS210. TRANSFORMER
It is provided to supply amplified door stations,
additional door locks, name plate lamps, etc.
Technical data
Power:
15VA
Output voltage:
13Vac
Maximum load:
0.7A
Maximum of intermittent load: 1A
Housing:
DIN 3 modules A
Weight:
0.42 Kg.
Approved by:
VDE
PRS240. STABILIZED POWER SUPPLY WITH
ELECTRONIC BELL.
It may be installed with 4+1 intercom systems
for receiving different calls (buzzer and electronic
bell; power supply is complete with electronic
bell).
Technical data
Power:
18VA
Bell frequency: 450Hz modulated
Housing:
DIN 6 modules A
Weight:
0.5 Kg.
Approved by:
VDE
Output terminals
-
Ground
+ Audio line power supply 7.2Vdc-0.1A
X Power supply for aux. services 12Vdc-0.2A
Power supply 13Vac for:
- name plate lamps (continuous load 0.6A)
- electric door lock and bells (intermittent
load 1A)
C+ Electronic bell output 10Vpp-0.2A
PRS235. POWER SUPPLY FOR SYSTEMS
WITH PRIVATE CONVERSATION MODULE.
It may be installed with Project series intercoms
for supplying power to 4+1 systems with private
conversation module. Only the intercom which
has been called can speak to the door station.
All the other users are isolated.
Technical data
Power:
18VA
Housing:
DIN 6 modules A
Weight:
0.5 Kg.
Approved by:
VDE
Output terminals
-
Ground
+
Audio line power supply 7.2Vdc-0.1A
X
Power supply for auxiliary services 12Vdc-
0.2A
Power supply 13Vac for:
- name plate lamps (continuous load 0.6A)
- electric door lock and bells (intermittent
load 1A)
C+ Power supply for bells 13Vac- 0.15A
The power supply is not provided with fuses,
but it is protected against overloading or short-
circuiting by a heat sensor (thermoprotector),
to restore power, it is necessary to cut off the
mains voltage for about one minute. Reconnect
power after having repaired the fault.
Do not obstruct the openings or the ventilation
or heat ejection slots to allow the equipment to
operate correctly. The power supply can be
installed on DIN rail or screwed to the wall.
All the power supplies described in this manual
replace the corresponding ones with similar
initials. E.g.: PRS220 replaces PRS220D,
PRS220K, etc. PRS226 replaces PRS226D
and PRS226K.
All power supplies can provide power for a
maximum of 8 24V-3W lamps for illuminating
push-button panel name plates. For more than
8 lamps, PRS210 transformer should be
installed.
General technical data
Input voltage:
127V or 230Vac
Working temperature: 0°÷+50°C
Maximum of humidity: 90%RH
Warning
All power
supplies in this
manual can work
either 127VAC or
230VAC.
Check carefully
the right
connection.
PRS220. STABILIZED POWER SUPPLY.
It is provided to supply 4+1 intercom systems
(electric door lock, name plate lamps, electric
door-speakers, amplifier, etc.)
Technical data
Power:
15VA
Housing:
DIN 4 modules A
Weight:
0.45 Kg.
Approved by:
VDE-SEMKO-DEMKO-SASO
Output terminals
-
Ground
+
Audio line power supply 6Vdc-0.1A
Power supply 13Vac for:
- name plate lamps, exchangers
(continuous load 0.6A)
- electric door lock and bells (intermittent
load 1A)
PRS226. STABILIZED POWER SUPPLY/
SWITCHER.
It is able to supply intercommunicating intercom
systems and to switch over automatically audio
connection of the door station and of the
intercommunicating service to the intercoms.
Technical data
Power:
18 VA
Housing:
DIN 6 modules A
Weight:
0.5 Kg.
Approved by:
VDE
Output terminals
-
Ground
+
Audio line power supply 8Vdc-0.1A
X
Power supply for auxiliary services 12Vdc-
0.2A
Power supply 13Vac for:
- name plate lamps, exchangers
(continuous load 0.6A)
- electric door lock and bells (intermittent
load 1A)
7
Power supply 13Vac for electric door lock
and bells (intermittent load 1A)
A
Output for call from push-button panel
13Vac-0.15A
G
Audio line receiver from intercoms
2
Audio line transmitter to intercoms
D
Audio line transmitter to electric door
speaker
C+ Audio line receiver from electric door
speaker
PRS226E. STABILIZED POWER SUPPLY/
SWITCHER.
As above, with the following additional termi-
nals and the modification of terminal 7.
7 Electronic bell output for intercommuni-
cations
Y Electronic bell output for push-button panel
9 Electronic call input for switching over multi-
way installations
4 Relay switching common terminal
controlled from entrance 9
4a NC relay switching controlled from entrance
9
4b NA relay switching controlled from entrance
9
127V
230V
0
230V
127V
127V
0
230V
DIN 6
DIN 4
DIN 3
PRS 210
PRS 220
53.5
89
65
70
89
65
107.5
89
65
PRS 226
PRS 226E
PRS 240
PRS 235
