NOTE: All CAUTIONS and WARNINGS are identified by the symbol . All warnings are printed in bold capital letters.
WARNING: PLEASE READ THESE SPECIFICATIONS AND ASSOCIATED INSTALLATION INSTRUCTIONS CAREFULLY BEFORE USING, SPECIFYING
OR APPLYING THIS PRODUCT. VISIT WWW.COOPERWHEELOCK.COM OR CONTACT COOPER WHEELOCK FOR THE CURRENT INSTALLATION
INSTRUCTIONS. FAILURE TO COMPLY WITH ANY OF THESE INSTRUCTIONS, CAUTIONS OR WARNINGS COULD RESULT IN IMPROPER APPLICATION,
INSTALLATION AND/OR OPERATION OF THESE PRODUCTS IN AN EMERGENCY SITUATION, WHICH COULD RESULT IN PROPERTY DAMAGE, AND
SERIOUS INJURY OR DEATH TO YOU AND/OR OTHERS.
General Notes:
•
Strobes are designed to flash at 1 flash per second minimum over their “Regulated Voltage Range”. Note that NFPA-72 specifies a flash rate
of 1 to 2 flashes per second and ADA Guidelines specify a flash rate of 1 to 3 flashes per second.
•
All candela ratings represent minimum effective Strobe intensity based on UL Standard 1971.
•
Series NS Strobe products are listed under UL Standard 1971 for indoor use with a temperature range of 32°F to 120°F (0°C to 49°C) and
maximum humidity of 93% (± 2%).
•
Series NH horns are listed under UL Standard 464 for audible signal appliances (Indoor use only).
•
“Regulated Voltage Range” is the newest terminology used by UL to identify the voltage range. Prior to this change UL used the
terminology “Listed Voltage Range”.
Table 1: Ratings Per UL Standard 1971
Model
Input
Voltage
VDC
Regulated
Voltage
Range
VDC/FWR
Strobe Candela
(CD)
NS-24MCW
24
16.0 - 33.0
15/30/75/110
NS-241575W
24
16.0 - 33.0
15 (75 on Axis)
NS-121575W
12
8.0 - 17.5
15 (75 on Axis)
NS-24MCC
24
16.0 - 33.0
15/30/75/95
NS-24MCCH
24
16.0 - 33.0
115/177
Table 2: dBA Ratings for Series NS/NH Horn
Description
Volume
Reverberant dBA
@ 10ft per UL 464
Anechoic dBA
@ 10 ft
12
VDC
24
VDC
12
VDC
24
VDC
Continuous
Horn
High
83
87
89
95
Low
76
81
84
90
Code 3
Horn
High
79
82
89
95
Low
72
76
84
90
Table 3: UL Max Current*
Series NS/NH
24 VDC
Audible
Wall Mount Strobe Models
Ceiling Mount Strobe Models
NH-12/24 NS-241575W
NS-24MCW
NS-24MCC
NS-24MCCH
@24VDC
15/75cd
15cd 30cd 75cd 110cd 15cd 30cd 75cd 95cd 115cd 177cd
High (95) dBA
24VDC
0.044
0.104
0.074 0.107 0.184 0.244 0.082 0.124 0.209 0.275 0.350 0.477
Low (90) dBA
24VDC
0.018
0.096
0.066 0.101 0.177 0.232 0.071 0.114 0.201 0.261 0.306 0.429
Series NS/NH
12VDC
Audible Wall Mount
NH-12/24 Aud/Strobe
@12V
NS-121575W
High (89) dBA
12 VDC
0.021
0.220
Low (84) dBA
12VDC
0.012
0.210
* RMS current ratings are per UL average RMS method. UL
max current rating is the maximum RMS current within the listed
voltage range (16-33v for 24v units). For strobes the UL max
current is usually at the minimum listed voltage (16v for 24v
units). For audibles the max current is usually at the maximum
listed voltage (33v for 24v units). For unfiltered FWR ratings,
see installation instructions.
