P82475 K
Sheet 2 of 9
WARNING: THESE APPLIANCES WERE TESTED TO THE OPERATING VOLTAGE LIMITS OF 20-31 VOLTS FOR 24V
MODELS AND 10.5-15.6 MODELS VOLTS FOR 12V MODELS USING FILTERED (DC) OR UNFILTERED FULL-WAVE RECTIFIED
(FWR). DO NOT APPLY 80% AND 110% OF THESE VOLTAGE VALUES FOR SYSTEM OPERATION.
Table 2: Current Ratings for Multitone Audible Appliances
Rated Average Current
12VDC 24VDC
Tone
Tone Description
HI dBA STD dBA HI dBA STD dBA
Horn Broadband Horn (Continuous) 0.100 0.020 0.040 0.023
Bell 1560 Hz Modulated (0.07 Sec. ON/Repeat) 0.031 0.010 0.014 0.012
March Time Horn Horn (0.25 Sec. ON/0.25 Sec. OFF/Repeat) 0.100 0.020 0.040 0.023
Code 3 Horn Horn (ANSI S3.41 Temporal Pattern) 0.100 0.020 0.040 0.023
Code 3 Tone 500 Hz (ANSI S3.41 Temporal Pattern) 0.060 0.015 0.028 0.017
Slow Whoop 500-1200 Hz Sweep (4.0 Sec. ON/0.5 Sec. OFF/Repeat) 0.100 0.025 0.048 0.026
Siren 600-1200 Hz Sweep (1.0 Sec. ON/Repeat) 0.082 0.020 0.036 0.023
HI/LO 1000/800 Hz (0.25 Sec. ON/Alternate) 0.044 0.012 0.020 0.014
Add 25% more input current than shown in Table 2 when operating the unit at maximum input voltage.
Add strobe current from Table 4 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 at 10 Feet
dBA at 10 Feet 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 75dBA 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.
Table 4: Strobe Current Requirement (AMPS)
Voltage Rated Average Current Rated Peak Current Rated Inrush Current
LS MS LSM IS LS MS LSM IS LS MS LSM IS
10.5VDC 0.160 0.235 0.220 ------ 0.340 0.560 0.470 ------ 0.300 0.500 0.440 ------
12.0VDC 0.160 0.235 0.220 ------ 0.340 0.560 0.470 ------ 0.300 0.500 0.440 ------
15.6VDC 0.160 0.235 0.220 ------ 0.340 0.560 0.470 ------ 0.390 0.650 0.470 ------
10.5VDC 0.175 0.240 0.230 ------ 0.475 0.730 0.660 ------ 0.420 0.700 0.620 ------
12.0VDC 0.175 0.240 0.230 ------ 0.475 0.730 0.660 ------ 0.420 0.700 0.620 ------
15.6VDC 0.175 0.250 0.240 ------ 0.475 0.730 0.660 ------ 0.545 0.910 0.660 ------
20.0VDC 0.080 0.135 0.115 0.240 0.160 0.288 0.250 0.500 0.210 0.280 0.225 0.650
24.0VDC 0.080 0.135 0.115 0.225 0.190 0.296 0.260 0.450 0.250 0.280 0.270 0.660
31.0VDC 0.080 0.135 0.115 0.195 0.210 0.296 0.260 0.370 0.320 0.300 0.360 0.880
20.0VFWR 0.080 0.135 0.125 0.253 0.210 0.390 0.350 0.700 0.320 0.390 0.315 0.920
24.0VFWR 0.081 0.135 0.125 0.233 0.216 0.390 0.365 0.640 0.380 0.390 0.380 0.930
31.0VFWR 0.091 0.135 0.125 0.196 0.240 0.390 0.365 0.520 0.450 0.420 0.500 1.250
NOTE
: All
VFWR
voltages are measured with
DC
volt meter. Multiply
VFWR
voltage by 1.11 to convert to
VRMS
.
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