Notifier Wheelock NH Series Horns User Manual
Page 2
Page 2 of 4 — dn-6601:a • 10/16/09
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: *Average RMS Current Ratings
NS-24MCW with High (95 dBA) Setting
Voltage
15cd
30cd
75cd
110cd
16.0 VDC
.077
.113
.195
.268
24.0 VDC
.065
.087
.134
.174
33.0 VDC
.069
.085
.117
.134
NS-24MCW with Low (90 dBA) Setting
Voltage
15cd
30cd
75cd
110cd
16.0 VDC
.070
.106
.188
.261
24.0 VDC
.052
.072
.126
.158
33.0 VDC
.045
.060
.097
.114
* Average RMS Current is per UL average RMS method and
Average Mean Current is per UL average mean method. NH
models use average mean current. For rated in Rush and Peak
current across UL Listed voltage range for both filtered DC and
VRMS (FWR), see installation instructions.
Table 2: dBA Ratings for Series NS/NH Horn
Table 4: *Average RMS Current Ratings
NS-241575W
Voltage
High (95) dBA
Low (90) dBA
16.0 VDC
.120
.116
24.0 VDC
.094
.093
33.0 VDC
.102
.078
Table 5: *Average Mean Current Ratings NH Horn 24
Volt Models
Voltage
High (95) dBA
Low (90) dBA
16.0 VDC
.019
.017
24.0 VDC
.028
.022
33.0 VDC
.039
.027
Table 6: Sync Models/Power Supply
Model
Number
Input
Voltage
(VDC)
Average
Mean
Current
@ 24 VDC
Mounting
Options
SM-12/24-R
24
.028
W
DSM-12/24-R
24
.035
W
NOTE: SM Sync Module is rated for 3.0 amperes @ 24 VDC.
DSM Sync Module is rated for 3.0 amperes per circuit. The max-
imum number of interconnected DSM Modules is twenty (20).
Table 7: UL Maximum Current**
Series NS/NH
24 VDC
Audible
Wall Mount Strobe Models
NH-12/24
NS-241575W
NS-24MCW
@24VDC
15/75cd
15cd
30cd
75cd
110cd
High (95) dBA
24VDC
.044
.104
.074
.107
.184
.244
Low (90) dBA
24VDC
.018
.096
.066
.101
.177
.232
Series NS/NH
12 VDC
Audible
Wall Mount
** RMS current ratings are per UL average
RMS method. UL max current rating is the max-
imum 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 listed voltage (33V
for 24V units). For unfiltered FWR ratings, see
installation instructions.
NH-12/24
Aud/Strobe
@12VDC
NS-121575W
High (95) dBA
12VDC
.021
.220
Low (90) dBA
12VDC
.012
.210