P82467-007 C
Sheet 2 of 9
Table 2: Current Ratings for Multitone Audible Appliances
Rated Average
Rated Average
Tone
Tone Description
Current (Amps)
Current (Amps)
24VDC
12VDC
HI dBA STD dBA HI dBA STD dBA
Horn
Broadband
Horn
(Continuous)
0.040 0.023 0.100 0.020
Bell
1560 Hz Modulated (0.07 Sec. ON/Repeat)
0.014
0.012
0.031
0.010
March Time Horn Horn (0.25 Sec. ON/0.25 Sec. OFF/Repeat)
0.040
0.023
0.100
0.020
Code-3 Horn
Horn (ANSI S3.41 Temporal Pattern)
0.040
0.023
0.100
0.020
Code-3 Tone
500 Hz (ANSI S3.41 Temporal
Pattern)
0.028 0.017 0.060 0.015
Slow Whoop
500-1200 Hz Sweep (4.0 Sec. ON/0.5 Sec. OFF/Repeat)
0.048
0.026
0.100
0.025
Siren
600-1200 Hz Sweep (1.0 Sec. ON/Repeat)
0.036
0.023
0.082
0.020
HI/LO
1000/800 Hz (0.25 Sec. ON/Alternate)
0.020
0.014
0.044
0.012
Add 25% more input current than shown in Table 2 when operating the unit at maximum input voltage.
Add strobe current from Table 1 to audible appliance current from Table 2 to obtain total current for each unit, if the strobe and
audible are wired to operate in unison on a single circuit.
Table 3: dBA Multitone With Strobe
Anechoic
Reverberant
dBA @ 10'
dBA @ 10' Per UL 464
Tone Nominal
Minimum
Maximum
Voltage
Voltage
Voltage
HI STD HI STD HI STD
Horn
99
93
85
79
88
82
Bell
92
87
79
75
82
75
March Time Horn
99
93
82
75
85
79
Code-3 Horn
99
93
79
75
82
75
Code-3 Tone
95
90
75
*70
79
*73
Slow Whoop
99
94
82
75
85
79
Siren
98
93
82
75
85
79
HI/LO
93
88
79
75
82
75
Anechoic dBA is measured on-axis in a non-reflective (free field) test room using fast meter response. For peak dBA (measured with
peak meter response), add 5 dBA to anechoic values shown in Table 3. Reverberant dBA is a minimum UL rating based on sound
power measurements in a reverberant test room.
WARNING: MULTITONE STROBE MODELS SET ON "CODE-3 TONE" WITH STANDARD dBA DO NOT MEET
THE 75 dBA MINIMUM UL REVERBERANT SOUND LEVEL REQUIRED FOR PUBLIC MODE FIRE PROTECTION
SERVICE (NOTED BY * IN TABLE 3). MODELS WITH SETTINGS WHICH PRODUCE LESS THAN 75 dBA MAY
NOT BE HEARD. THIS SETTING IS ACCEPTABLE ONLY FOR GENERAL SIGNALING (NON-FIRE ALARM) USE.
USE THE "HIGH" dBA SETTING WITH THIS TONE OR USE A DIFFERENT TONE FOR PUBLIC MODE SERVICE.
