HD 21EN
PLASTIC HORN SPEAKER
DESCRIPTION
HD 21EN is a plastic horn speaker suitable for
broadcasting alarm messages thanks to the
highly intelligible sound reproduction and its
environmenal resistance. The terminal
connection blocks, for input and output
flameproof cables, are made of ceramic
material. A thermal fuse protects the integrity
of the line in case of heat affecting the
speaker. It can be easily aimed towards any
direction through the adjustable wall-mount
bracket, and thanks to its IP66 protection
grade it can be installed both indoor and
outdoor.
FEATURES
• 1.5" compression driver.
• Power selectable (100 V): 30 W – 15 W – 7.5 W – 3.75 W.
• 104 dB sensitivity.
• Colour grey RAL 7035.
• Plastic body.
• In/out ceramic terminal block.
• Thermal fuse protection.
• Protection grade IP66.
DATASHEET
Rev. N
TECHNICAL SPECIFICATIONS
Acoustical specifications
Frequency Response (-10dB):
340 Hz ÷ 9000 Hz
Max SPL @ 1m:
117 dB
Max SPL @ 4m:
105 dB
Coverage angle:
135°
System Sensitivity:
104 dB
System Sensitivity 1W @ 4m:
92 dB
Power section
Power Handling:
30 W RMS
Peak Power Handling:
120 W PEAK
Recommended Amplifier:
60 W
Protections:
Thermal fuse
Transducers
Compression Driver:
1 x 1.5''
Input/Output section
Input connectors:
Ceramic screw terminals
Output connectors:
Ceramic screw terminals
Constant Voltage Transformer:
100 V
Power selection 1 (100 V):
30 W - 333 ohm
Power selection 2 (100 V):
15 W - 667 ohm
Power selection 3 (100 V):
7.5 W - 1333 ohm
Power selection 4 (100 V):
3.75 W - 2667 ohm
Standard compliance
IP protection grade:
IP 66
EN54-24 certified:
Yes
CE marking:
Yes
CPR number:
1488-CPR-0652/W
Physical specifications
Cabinet/Case Material:
ABS
Hardware:
Stainless steel bracket
Color:
Grey - RAL 7035
Size
Height:
212 mm / 8.35 inches
Depth:
280 mm / 11.02 inches
Weight:
2 kg / 4.41 lbs
Shipping informations
Package Height:
220 mm / 8.66 inches
Package Width:
320 mm / 12.6 inches
Package Depth:
220 mm / 8.66 inches
Package Weight:
2 kg / 4.41 lbs
DATASHEET
RCF products are continually improved. All specifications are therefore subject to change without notice.
PART NUMBER
• 13133075
HD 21EN
EAN 8024530010461
DATASHEET
RCF products are continually improved. All specifications are therefore subject to change without notice.
DRAWINGS
ø 212 mm
280 mm
151 mm
ø 212 mm
106 mm
60 mm
7 mm
DATASHEET
SCHEMATICS
TAPS POWER (100 V) POWER(70 V)
1 3.75 W 1.875 W
2 7.5 W 3.75 W
3 15 W 7.5 W
4 30 W 15 W
1 2 3 4
COM
–
+
100/70 V0
DATASHEET
100 1000 10000
Frequency (Hz)
70
80
90
100
110
dB SPL
20
Response 1W/1m
HD 21 EN
100 1000 10000
Frequency (Hz)
1
10
100
Total Q
0
2
4
6
8
10
12
14
16
18
20
Directivity index Di, dB
Directivity Index and Q
100 1000 10000
0
30
60
90
120
150
180
210
240
270
300
330
360
Coverage Angle (Deg.)
Beamwidth vs. Frequency
100 1000 10000
Frequency (Hz)
-30
-25
-20
-15
-10
-5
0
5
Attenuation in dB
±10 degrees
±20 degrees
±30 degrees
±40 degrees
±50 degrees
±60 degrees
Normalized off-axis Response
DATASHEET
-48-48 -42-42 -36-36 -30-30 -24-24 -18-18 -12-12 -6-6 00
300°
330°
270°
240°
210°
180°
150°
120°
90°
60°
30°
0°
1250
1000
800
1/3 Octave Polars
-48-48 -42-42 -36-36 -30-30 -24-24 -18-18 -12-12 -6-6 00
300°
330°
270°
240°
210°
180°
150°
120°
90°
60°
30°
0°
315
250
200
1/3 Octave Polars
-48-48 -42-42 -36-36 -30-30 -24-24 -18-18 -12-12 -6-6 00
300°
330°
270°
240°
210°
180°
150°
120°
90°
60°
30°
0°
2500
2000
1600
1/3 Octave Polars
-48-48 -42-42 -36-36 -30-30 -24-24 -18-18 -12-12 -6-6 00
300°
330°
270°
240°
210°
180°
150°
120°
90°
60°
30°
0°
10000
8000
6300
1/3 Octave Polars
-48-48 -42-42 -36-36 -30-30 -24-24 -18-18 -12-12 -6-6 00
300°
330°
270°
240°
210°
180°
150°
120°
90°
60°
30°
0°
630
500
400
1/3 Octave Polars
-48-48 -42-42 -36-36 -30-30 -24-24 -18-18 -12-12 -6-6 00
300°
330°
270°
240°
210°
180°
150°
120°
90°
60°
30°
0°
5000
4000
3150
1/3 Octave Polars
HORIZONTAL 1/3 POLAR PLOT
DATASHEET
ACCESSORIES
CV210 CABLE SPEAKER 100V SEZ 2X1MMQ EVAC
PART NUMBER
14380030
EAN:
8024530012168
CV215 CABLE SPEAKER 100V SEZ 2X1.5MMQ EVAC
PART NUMBER
14380031
EAN:
8024530012175
CV225 CABLE SPEAKER 100V SEZ 2X2.5MMQ EVAC
PART NUMBER
14380032
EAN:
8024530012182
DATASHEET
NOTES
NO CAUTION is NECESSARY in case of ALERTED PERSON for AUDIO voltages up to 120V, when warning symbols are present near the connection
terminals. In the case of AUDIO voltages up to 71V, it is not even necessary to put warning symbols.
No need of linking to earth metal parts of speakers equipped with transformers and connected to 70.7 V / 100 V outputs of power amplifiers that do
not have any reference to earth (ref. EN 62368-1 item 4.3.2.2 ), unless specific local requirements.
DATASHEET
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