Wheelock NS/NH Series
NS Series Horn Strobes
NH Series Horns
General
The Wheelock Series NS Horn Strobe Appliances are
designed for indoor, wall and ceiling mount applications.
The Series NH Horn and the horn portion of the Series NS
include a selectable continuous horn tone or temporal pattern
(Code 3) with selectable dBA settings of 90 or 95 dBA.
Strobe options include 15/75cd or Wheelock’s Multi-Candela
strobe with field selectable candela settings of 15/30/75/
110cd.
These versatile Horn Strobe Appliances may be synchronized
when used in conjunction with the Wheelock SM or DSM Sync
Modules or a Power Supply with the Wheelock patented Sync
Protocol. Additionally, the audible may be silenced while maintaining strobe activation.
All models of the Series NS and NH 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.
dn-6601:a • J-134
Audio/Visual Devices
NS Horn Strobe NH Horn
Features
• Field selectable Candela settings 15/30/75/110cd (24 VDC
Multi-Candela models) or 15/75cd in 12 or 24 VDC.
• Selectable Continuous Horn or Temporal (Code 3).
• 2 selectable dBA settings of 90 and 95 dBA in both tones.
• 12 and 24 VDC models with UL “Regulated Voltage” using
filtered DC or unfiltered VRMS input voltage.
• ADA/NFPA/UFC/ANSI compliant.
• Complies with OSHA 29, Part 1910.165.
• NH Horn is selectable 12 or 24 VDC in 1 unit.
• Synchronize with Wheelock SM or DSM Sync Module or
the Power Supply with built-in Sync Protocol.
• Patent Pending Universal Mounting Plate for single-gang,
double-gang 4” (10.16c m) square, or 100 mm European
backboxes, or Wheelock’s SHBB shallow surface backbox.
• Fast installation with IN/OUT screw terminals using #12 to
#18 AWG wires.
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.”
Multi-Candela Indicator
(bottom of Strobe Lens)
WARNING: PLEASE READ THESE
!
SPECIFICATIONS AND ASSOCIATED
INSTALLATION INSTRUCTIONS CAREFULLY
BEFORE USING, SPECIFYING OR APPLYING
THIS PRODUCT. FAILURE TO COMPLY WITH
ANY OF THESE INSTRUCTIONS, CAUTIONS
OR WARNINGS COULD RESULT IN PROPERTY
DAMAGE, AND SERIOUS INJURY OR DEATH .
Table 1: Ratings Per UL Standard 1971
Model
Vol tag e
VDC
Input
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
Regulated
Voltage
Range
VDC/FWR
Strobe
Candela
(CD)
Reverberant
dBA
@ 10ft per UL
Anechoic dBA
@ 10ft
464
12VDC 24VDC 12VDC 24VDC
6601pho1.jpg; 6601pho2.jpg; 6601pho3.jpg
dn-6601:a • 10/16/09 — Page 1 of 4
Table 2: dBA Ratings for Series NS/NH Horn
Continuous
Horn
Code 3 Horn
High 83 87 89 95
Low76818490
High 79 82 89 95
Low72768490
Table 3: *Average RMS Current Ratings
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
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 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
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 maximum number of interconnected DSM Modules is twenty (20).
Input
Volta ge
(VDC)
Average
Mean
Current
@ 24 VDC
Mounting
Options
Table 7: UL Maximum Current**
Audible Wall Mount Strobe Models
Series NS/NH
24 VDC
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
Audible Wall Mount
Series NS/NH
12 VDC
NH-12/24 Aud/Strobe
@12VDC NS-121575W
High (95) dBA 12VDC .021 .220
Low (90) dBA 12VDC .012 .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 listed voltage (33V
for 24V units). For unfiltered FWR ratings, see
installation instructions.
Page 2 of 4 — dn-6601:a • 10/16/09
WARNING: CONTACT WHEELOCK FOR THE CURRENT INSTALLATION INSTRUCTIONS (P83983) SERIES
T
F
SIG
Circu
!
NS-24MCW, (P84234) SERIES NS-12 AND 24 VDC SINGLE CANDELA MODELS, (P83600) SERIES NH AND
“GENERAL INFORMATION” SHEET (P82380) ON THESE PRODUCTS. THESE DOCUMENTS UNDERGO
PERIODIC CHANGES. IT IS IMPORTANT THAT YOU HAVE CURRENT INFORMATION ON THE PRODUCTS.
THESE MATERIALS CONTAIN IMPORTANT INFORMATION THAT SHOULD BE READ PRIOR TO
SPECIFYING OR INSTALLING THESE PRODUCTS, INCLUDING:
• TOTAL CURRENT REQUIRED BY ALL APPLIANCES CONNECTED TO SYSTEM SECONDARY
POWER SOURCES.
• FUSE RATINGS ON NOTIFICATION APPLIANCE CIRCUITS TO HANDLE PEAK CURRENTS FROM
ALL APPLIANCES ON THOSE CIRCUITS.
• COMPOSITE FLASH RATE FROM MULTIPLE STROBES WITHIN A PERSON’S FIELD OF VIEW.
• ADDING, REPLACING OR CHANGING APPLIANCES OR CHANGING CANDELLA SETTINGS WILL
AFFECT CURRENT DRAW. RECALCULATE CURRENT DRAW TO INSURE THAT THE TOTAL
AVERAGE CURRENT AND TOTAL PEAK REQUIRED BY ALL APPLIANCES DO NOT EXCEED THE
RATED CAPACITY OF THE POWER SOURCES OR FUSES.
• THE VOLTAGE APPLIED TO THE PRODUCTS MUST BE WITHIN THEIR “REGULATED VOLTAGE
RANGE.”
• INSTALLATION OF 110 CANDELA STROBE PRODUCTS IN SLEEPING AREAS.
• INSTALLATION IN OFFICE AREAS AND OTHER SPECIFICATION AND INSTALLATION ISSUES.
• THESE APPLIANCES ARE NOT DESIGNED TO BE USED ON CODED SYSTEMS IN WHICH THE
APPLIED VOLTAGE IS CYCLED ON AND OFF.
• FAILURE TO COMPLY WITH THE INSTALLATION INSTRUCTIONS OR GENERAL INFORMATION
SHEETS COULD RESULT IN IMPROPER INSTALLATION, APPLICATION, AND/OR PROPERTY
DAMAGE AND SERIOUS INJURY OR DEATH TO YOU AND/OR OTHERS.
• CONDUCTOR SIZE (AWG), LENGTH AND AMPACITY SHOULD BE TAKEN INTO CONSIDERATION
PRIOR TO DESIGN AND INSTALLATION OF THESE PRODUCTS, PARTICULARLY IN RETROFIT
INSTALLATIONS.
Wiring Diagrams
rom
PRECEDING
DEVICE
or FACP
+
{
–
+ –
NAL
NS/NH APPLIANCE
6601wir1.wmf
+
–
To
NEX
{
DEVICE
or EOLR
F
A
C
P
Strobe
NAC
Circuit
Audible
NAC
NS AND NH APPLIANCES
DSM
SYNC
+
SYNC
–
+
FACP
+
–
+
–
SINGAL
CIRCUIT
OUT
SIGNAL
CIRCUIT RETURN
OUT 1
+
IN 1
MINUS 1
+
AUDIBLE
–
AUDIBLE
+
OUT 2
+
IN 2
MINUS 2
~
~
~
~
6601wir3a.wmf
NS AND NH APPLIANCES SYNCHRONIZED WITH DSM
MODULE DUAL CLASS “A” NAC CIRCUIT WITH NO
AUDIBLE SILENCE FEATURE
SYNCHRONIZED WITH SM MODULE
SINGLE CLASS “B” NAC CIRCUIT WITH
AUDIBLE SILENCE FEATURE
NOTE: NS/NH must be set on Code 3 horn
tone to achieve synchronized temporal
(Code 3) tone. Refer to installation instruction (P83983, P83600 respectively).
NOTE: For detail using SM or DSM Sync
Module refer to data sheet S3000 or installation instructions P83123 for SM and
P83177 for DSM.
SM
+
STROBE
-
STROBE
NS NH
+
Audible
EOLR
-
Audible
it
6601wir2a.wmf
dn-6601:a • 10/16/09 — Page 3 of 4
Architectural/Engineering
Specifications
The audible/visual notification appliances shall be Wheelock
Series NS Horn Strobe appliances and Series NH Horn appliances or approved equals. The Series NS appliances shall
meet and be listed for UL Standard 1971 (Emergency Devices
for the Hearing-Impaired for Indoor Fire Protection Service).
The Series NH Horn shall be UL Listed under Standard 464
(Fire Protective Signaling). The horn strobe shall be listed for
indoor use and shall meet the requirements of FCC Part 15
Class B. All inputs shall be compatible with standard reverse
polarity supervision of circuit wiring by the Fire Alarm Control
Panel (FACP).
The audible portion of the appliance shall have a minimum of
two (2) field selectable settings for dBA levels (90 and 05 dBA)
and shall have a choice of continuous or temporal (Code 3)
audible outputs.
The strobe portion of the appliance shall produce a flash rate
of one (1) flash per second over the Regulated Voltage Range
and shall incorporate a Xenon flashtube enclosed in a rugged
Lexan lens. The Series NS shall be of low current design.
Where wall mount, Multi-Candela appliances are specified, the
strobe intensity shall never have field selectable settings and
shall be rated per UL Standard 1971 for 15/30/75/110 candela.
The selector switch for selecting the candela setting shall be
tamper resistant. The 1575 candela strobe shall be specified
when 15 candela UL Standard1971 Listing with 75 candela
on-axis is required (e.g. ADA compliance).
When synchronization is required, the appliance shall be compatible with Wheelock’s SM, DSM Sync Modules or a Power
Supply with Wheelock’s built-in patented Sync Protocol. The
strobes shall not drift out of synchronization at any time during
operation. If the Sync Module or Power Supply fails to operate
(i.e. contacts remain closed), the strobes shall revert to a nonsynchronized flash-rate. The appliance shall also be designed
so that the audible signal may be silenced while maintaining
strobe activation.
The Series NS Horn Strobes and NH Horn shall incorporate a
patented Universal Mounting Plate that shall allow mounting to
a single-gang, double-gang, 4 inch square, and 100 mm European backboxes, or the SHBB Surface Backbox. If required,
an NATP (Notification Appliance Trimplate) shall be provided.
All notification appliances shall be backward compatible.
Listings and Approvals
These listings and approvals apply to the modules specified in
this document. In some cases, certain modules or applications
may not be listed by certain approval agencies, or listing may
be in progress. Consult factory for listing status.
• UL Listed: E5946
• ULC Listed: CS 243, CS 356
• CSFM: 7125-0785:142
• MEA: 151-92-E
• FM Approved
Ordering Information
Model
NS-24MCW-FR 15/30/75/110 X X - X X X X X
NS-24MCW-FW 15/30/75/110 X X - X X X X X
NS-241575W-FR 15 (75 on axis) X X - X X X X X
NS-121575W-FR 15 (75 on axis) X - X X X X X X
NH-12/24-R 12V, 24V X X X X X X X X
NS-24MCC-FR 15/30/75/95 X X - X - X X -
NS-24-MCC-FW 15/30/75/95 X X - X - X X -
NS-24MCCH-FR 115/177 X X - X - X X -
NS-24MCCH-FW 115/177 X X - X - X X -
Strobe
Candela
Sync
w/ SM,
DSM
24
VDC12VDC
Agency Approvals
ULMEACSFMFMBFP
Page 4 of 4 — dn-6601:a • 10/16/09
©2009 by Honeywell International Inc. All rights reserved. Unauthorized use
of this document is strictly prohibited.
This document is not intended to be used for installation purposes.
We try to keep our product information up-to-date and accurate.
We cannot cover all specific applications or anticipate all requirements.
All specifications are subject to change without notice.
For more information, contact Notifier. Phone: (203) 484-7161, FAX: (203) 484-7118.
www.notifier.com
Made in the U.S. A.
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