P82774 C
Sheet 2 of 5
Figure
1.
(For full-wave-rectified input voltage,
multiply 1.41 by percent value shown in
Figure 1.)
WARNING: MAKE SURE THAT THE TOTAL AVERAGE CURRENT REQUIRED BY ALL APPLIANCES THAT
ARE CONNECTED TO THE SYSTEM’S PRIMARY AND SECONDARY POWER SOURCES AND APPLIANCE
CIRCUITS 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 current: use Table 1 to determine the value of "Rated Average Current" for an individual strobe then
multiply this value by the total number of strobes; be sure to add the current for any other appliances, including audible signaling
appliances, powered by the same source and include any required safety factors.
WARNING: MAKE SURE THAT ALL FUSES USED ON SIGNALING CIRCUITS ARE RATED TO HANDLE THE
MAXIMUM INRUSH OR PEAK CURRENT FROM ALL APPLIANCES ON THOSE CIRCUITS. FAILURE TO DO THIS
MAY RESULT IN LOSS OF POWER TO THE SIGNALING CIRCUIT AND THE FAILURE OF ALL APPLIANCES ON
THAT CIRCUIT TO OPERATE, WHICH COULD RESULT IN PROPERTY DAMAGE AND SERIOUS INJURY OR
DEATH TO YOU AND/OR OTHERS.
When calculating the maximum inrush or peak current: use Figure 1 to determine the highest value of "Rated Inrush Current" for a
strobe (across the expected operating voltage range of the strobe); then multiply that value by the total number of strobes on the
circuit; be sure to add the inrush or peak currents from any other appliances, including audible signaling appliances, on that circuit
and include any required safety factors. The time duration of the maximum strobe inrush is shown in Figure 1.
CAUTION:
Strobes are not designed to be used on coded systems in which the applied voltage is cycled on and off.
Table 3: Strobe Candela at Various Viewing Angles
Model
Voltage
Rated
Candela
Candela at Various Angles Per UL 1638
A1
A2
A3
A4 A5 A6/A7
12VDC
15.0cd
15.0 16.8 14.4 14.6 6.9 0.6
18.0-31.0VDC (24VDC) 15.0cd
15.0 18.8 13.7 15.6 7.4 0.9
115VAC
15.0cd
15.0 18.0 14.6 17.7 8.4 0.8
18.0-31.0VDC (24VDC) 117.0cd
117.0 15.2 16.4 6.0 7.0 1.2
Table 2.
Model
Typical Flashes Per Secod Across Rated Voltage Range
WM3T-24 18 20 22 24 26 28 31
DC/FWR 0.7 0.8 0.9 1.0 1.1 1.2 1.3
NOTE
: Typical flash rate for WH models is 1 per second at nominal
voltage.
