PL 68EN
The PL 68EN is a ceiling speaker featuring a flameproof steel bottom designed for recess installation in false ceilings or panels. It is especially suitable for broadcasting alarm messages thanks to highly intelligible sound reproduction and is resistant to the high temperatures reached during fires.
The terminal connection boards are in ceramic material for input and output flameproof cables. A thermal fuse, protects the integrity of the line in case of heat affecting the speaker. Ground screw. Cables inside speaker made using flameproof leads.
• Voice evacuation system
• Schools
• Shopping malls
• Hospital
• Museums
• Hotels
• Office building
Loudspeaker
Power (on 8 Ohm load)
Power
Sensivity
Mx. SPL
Frequency Response
Angle of coverage
Connector
Body colour
Main body material
Grill material
Dimensiones
Flush-mounting hole
Max ceiling thickness
Net weight
Operating temperature
Relative humidity
6” dual cone wide band
6 / 24 W (RMS / Music power)
6 W - 3 W - 1.5 W (100V)
94 dB (1 W / 1 m)
102 dB(A) (1 m / POWER MAX)
130 Hz – 20 kHz
140°
Ceramic terminal block
White RAL 9003
Extra thick steel
Steel
Ø 220 mm x 96 mm
Ø 200 mm
30 mm
1.34 kg
-25° to +55°
90% non condensing
• Speaker for transmitting alarm voice messages with high intelligibility and
background music
• Power (selectable) at 100V: 6 W – 3 W – 1.5 W (power values are halved
at 70 V)
• 6” diameter dual cone wide band loudspeaker
• Steel protection Fire Dome, terminal strip in ceramic material for
connecting flameproof input and output cables, thermal fuse, suitable
internal wiring
• Conforms to EN 54-24 regulations
• Structure, front grille, and protection cap in steel, RAL 9003 White

PL 68EN
Response
110
100
90
80
70
60
20
PL68 EN
100 1000
Frequency (Hz)
100
10
1
100
10000
Directivity Index and Q
1000
Frequency (Hz)
10000
20
18
16
14
12
10
8
6
4
2
0
360
330
300
270
240
210
180
150
120
90
60
30
0
100
Beamwidth vs. Frequency
Horizontal Beamwidth (1/3 Octave)
Vertical Beamwidth (1/3 Octave)
1000
Frequency (Hz)
10000
Normalized Horizontal off-axis Response
-5
-10
-15
5
0
-20
-25
-30
100
Horizontal ±10 degrees
Horizontal ±20 degrees
Horizontal ±30 degrees
Horizontal ±40 degrees
Horizontal ±50 degrees
Horizontal ±60 degrees
1000
Frequency (Hz)
10000

PL 68EN
HORIZONTAL 1/3 POLAR PLOT
Horizontal 1/3 Octave Polars
330°
0°
30°
300° 60°
315
250
200
270°
0 -6 -12 -18 -24 -30 -36 -42 -48 -48 -42 -36 -30 -24 -18 -12 -6 0
90°
120° 240°
210°
Horizontal 1/3 Octave Polars
330°
300°
180°
0°
150°
30°
60°
2500
2000
1600
270°
0 -6 -12 -18 -24 -30 -36 -42 -48 -48 -42 -36 -30 -24 -18 -12 -6 0
90°
240° 120°
210° 150°
180°
Horizontal 1/3 Octave Polars
330°
300°
0°
30°
60°
630
500
400
270°
0 -6 -12 -18 -24 -30 -36 -42 -48 -48 -42 -36 -30 -24 -18 -12 -6 0
90°
120° 240°
210°
Horizontal 1/3 Octave Polars
330°
300°
180°
0°
150°
30°
60°
5000
4000
3150
270°
0 -6 -12 -18 -24 -30 -36 -42 -48 -48 -42 -36 -30 -24 -18 -12 -6 0
90°
240° 120°
210° 150°
180°
Horizontal 1/3 Octave Polars
330°
300°
0°
30°
60°
1250
1000
800
270°
0 -6 -12 -18 -24 -30 -36 -42 -48 -48 -42 -36 -30 -24 -18 -12 -6 0
90°
240°
210°
Horizontal 1/3 Octave Polars
330°
300°
180°
0°
150°
30°
120°
60°
10000
8000
6300
270°
0 -6 -12 -18 -24 -30 -36 -42 -48 -48 -42 -36 -30 -24 -18 -12 -6 0
90°
240° 120°
210° 150°
180°

PL 68EN
13133068
Select the power value among 6 / 3 / 1.5 W (at 100V) on the loudspeaker transformer by linking the red wire to the proper terminal. If the line is 70 V, the power will be halved. Connect the black wire to the transformer COM terminal.
1. Drill a hole of diameter 200 mm (7.87”) in the false ceiling panel.
Insert the external flange into the hole (previously drilled) and then release its springs to fix it to the false ceiling.
2,4
1.
200
96
2.
Insert the cable into the fire dome and connect both the
100 V (/ 70 V) line and the earth wire to the ceramic terminal strip of the fire dome (as shown in the figure).
2.
ø 200 mm
220
100 V
0
0
IN
100 V
+
CERAMIC
SCREW TERMINAL
GREEN
BLACK
RED
FUSE COM
6W
3W
1.5W
8Ω
The PL 68EN is designed for flush-mount installation in false ceilings. Before installing the loudspeaker, make sure there is sufficient space behind the false ceiling panel to hold the speaker: with respect to the support surface of the front flange of the loudspeaker, a free space 130 mm deep is necessary.
7
• EN 54-24:2008 compliant
RCF products are continually improved. All specifications are therefore subject to change without notice.