7
Installation and Maintenance Instructions
Model 450EWBX-024 Electronic Horn
An Overview of the Model 450EWBX-024
SOUND RESTRICTION: Do not paint the horn. No finish or
coating is required. Paint may obstruct the sound output,
reducing the effectiveness of the horn. Failure to heed this
warning may cause serious injury or death.
The Model 450EWBX-024E electronic horn is 24 Vdc, polarized,
high-output, continuous duty, and indoor/outdoor-rated. It is
suitable for use in hazardous locations and is capable of
reproducing coded blasts or sustained tones.
The horn is excellent for general alarm, start and dismissal, coded
paging, and process control signaling in areas of high ambient
noise levels. It can be used indoors or outdoors and meets Type 4X
and IP66 requirements
.
Table 1 Horn specifications
Operating Voltage: 12-24 Vdc
Current:
0.12 A to 0.25 A
Inrush Current:
764 mA rms over a 16.7 ms time window
Audibility:
For dispersion characteristics, see Figure 1.
Figure 1 Dispersion characteristics for audible signal devices
AUDIBLE SIGNAL DEVICE
85 dB
85 dB
3 m
-6 dB
-6 dB
–3 dB
–3 dB
99 dB
3 m
14º
27º
