THE CITY OF
NEW YORK
DEPARTMENT OF BUILDINGS
Series HS Horn and Horn Strobe Appliances
SERIES HS4
Description Features
The Series HS4 Horn Strobe and HS Horn Appliances
are an ideal choice for retrofit applications as well as
new installations. They satisfy virtually all requirements
for indoor, wall mount applications.
The Series HS Horn and the horn portion of the Series
HS4 include a selectable continuous horn tone or
temporal pattern (Code 3) with three selectable dBA
settings for each tone.
Strobe options include 1575cd or the Wheelock patented
MCW Multi-Candela strobe with field selectable candela
settings of 15/30/75/110cd or the high intensity MCWH
strobe with field selectable 135/185cd.
The Series HS4 horn and strobe inputs are electrically
isolated to allow for independent operation of the strobe
circuit and the horn circuit. The horn and strobe may also
be wired in parallel to operate on a single circuit.
These versatile Horn and Horn Strobe Appliances
may be synchronized using Wheelock SM, DSM Sync
Modules or the PS-24-8MC Power Supplies with
Wheelock patented Sync Protocol.
All models are designed for maximum performance,
reliability and cost-effectiveness while meeting or
exceeding the latest requirements of NFPA 72/ANSI
117.1/UFC and UL Standards 1971 and 464 as well as
meeting ADA requirements concerning photosensitive
epilepsy.
• Approvals include: UL Standard 1971, UL Standard 464, New
York City (MEA), California State Fire Marshal (CSFM) and
Factory Mutual (FM) and Chicago (BFP) See approvals by
model in Specifications and Ordering Information
• ADA/NFPA/UFC/ANSI compliant
• Complies with OSHA 29, Part 1910.165
• Field Selectable Candela Settings: 15/30/75/110cd or
135/185cd (Multi-Candela models) or 1575cd (single candela
model)
• Selectable Continuous Horn or Temporal (Code 3)
• 3 Selectable dBA settings of 90/95/99 dBA in both tones
• 4-Wire Horn Strobe Appliance allows for separate operation of
the horn and strobe circuits
• 24 VDC models with 16 to 33 VDC UL “Regulated Voltage”
using filtered DC or unfiltered VRMS input voltage
• Wall mount flush to standard 4-inch square or
double-gang boxes or surface mount to IOB backbox
• Synchronize with Wheelock Sync Modules or Power Supplies
with built-in sync protocol
• Fast installation with IN/OUT screw terminals using #12 to #18
AWG wires
SERIES HS
S5391
151-92-E
7125-0785:161
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
Number
Input
Voltage
VDC
Regulated
Voltage Range
VDC/FWR
Strobe
Candela (CD)
HS4-24MCW 24 16.0 - 33.0 15/30/75/110
HS4-241575W 24 16.0 - 33.0 15 (75 on Axis)
HS4-24MCWH 24 16.0 - 33.0 135/185
HS-24 24 16.0 - 33.0 -
Table 2: dBA Ratings for Horn
Description Volume
Reverberant dBA
@ 10ft per UL 464
Anechoic dBA
@ 10 ft
24VDC 24VDC
High 91 99
Continuous
Horn
Med 88 95
Low 83 90
High 87 99
Code 3
Horn
Med 84 95
Low 79 90
Table 3: Average RMS Current*
Audible Current Strobe Current
HS/HS4
Series
HS and HS4 HS4-241575W HS4-24MCW HS4-24MCWH
High (99) dBA Med (95) dBA Low (90) dBA 1575cd 15cd 30cd 75cd 110cd 135cd 185cd
24 vdc 0.098 0.052 0.024 0.060 0.041 0.063 0.109 0.140 0.195 0.270
UL max* 0.110 0.068 0.027 0.090 0.060 0.092 0.165 0.220 0.300 0.420
* 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.