P83641 J
Sheet 2 of 6
Table 2: dBA Sound Output for 24VDC Models
Reverberant dBA Per UL 464
Anechoic Per CAN/ULC-S525-99
Description Volume
16.0VDC 24VDC 33.0VDC 16.0VDC 24VDC 33.0VDC
Low 80 83 86
88 90 92
Continuous
Horn
Medium
85 88 91
90 95 97
High 88 91 93
92 97 99
Low 75 79 82
88 90 92
Code 3 Horn
Medium
80
84
86
90 95 97
High 84 87 90
92 97 99
Table 2A: dBA Sound Output for 12VDC Models
Description
Volume
Reverberant Per UL 464
8.0VDC
12VDC
17.5VDC
Low
80
83
86
Continuous Horn
Medium
85
88
91
High
88
91
93
Low
75
79
82
Code 3 Horn
Medium
80
84
86
High
84
87
89
NOTES:
1.
All models are UL/ULC Listed for indoor and outdoor use with a temperature range of -31
o
F to +151
o
F (-35
o
C to 66
o
C)
and maximum humidity of 98% RH.
Table 2B: ULC Directional Characteristics
-3 dBA: 48 degrees left, 41 degrees right
-6 dBA: 50 degrees left, 58 degrees right
WARNING
:
CHECK THE MINIMUM AND MAXIMUM OUTPUT OF THE POWER SUPPLY AND STANDBY
BATTERY AND SUBTRACT THE VOLTAGE DROP FROM THE CIRCUIT WIRING RESISTANCE TO DETERMINE
THE APPLIED VOLTAGE TO THE SIGNALING APPLIANCE.
WARNING: FOR UL APPLICATIONS THESE APPLIANCES WERE TESTED TO THE OPERATING VOLTAGE
LIMITS OF 16-33 VOLTS FOR 24V MODELS AND 8-17.5 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.
WARNING: FOR ULC APPLICATIONS THESE APPLIANCES WERE TESTED TO THE OPERATING VOLTAGE LIMITS
OF 20-31 VOLTS FOR 24V MODELS AND 10.5-15.6 VOLTS FOR 12V MODELS USING FILTERED (DC) OR UNFILTERED
FULL-WAVE-RECTIFIED (FWR). APPLY 80% AND 110% OF THESE VOLTAGE VALUES FOR SYSTEM OPERATION.
WARNING: MAKE SURE THAT THE TOTAL RMS CURRENT, TOTAL AVERAGE CURRENT AND TOTAL PEAK
CURRENT REQUIRED BY ALL APPLIANCES THAT ARE CONNECTED TO THE SYSTEM’S PRIMARY AND SECONDARY
POWER SOURCES, NAC CIRCUITS, SM, DSM SYNC MODULES OR WHEELOCK’S POWER SUPPLIES DO NOT EXCEED
THE POWER SOURCES’ RATED CAPACITY OR THE CURRENT RATINGS OF ANY FUSES ON THE CIRCUITS TO WHICH
THESE APPLIANCES ARE WIRED. OVERLOADING POWER SOURCES OR EXCEEDING FUSE RATINGS COULD RESULT
IN LOSS OF POWER AND FAILURE TO ALERT OCCUPANTS DURING AN EMERGENCY, WHICH COULD RESULT IN
PROPERTY DAMAGE AND SERIOUS INJURY OR DEATH TO YOU AND/OR OTHERS.
When calculating the total currents: Use Table 1 to determine the highest value of “RMS Current” for an individual AH
Appliance (across the expected operating voltage range of the AH Appliance) or use Table 1A to determine the highest value of
“Rated Average Current” of an individual AH Appliance (across the expected voltage range of the AH Appliance), then multiply
these values by the total number of AH Appliances; be sure to add the currents for any other appliances, powered by the same
source and include any required safety factors.
If the peak current exceeds the power supplies’ peak capacity, the output voltage provided by the power supplies may drop
below the listed voltage range of the appliances connected to the supply and the voltage may not recover in some types of power
supplies. For example, an auxiliary power supply that lacks filtering at its output stage (either via lack of capacitance and/or
lack of battery backup across the output) may exhibit this characteristic.
