Wheelock MB Specification
FIRE ALARM SYSTEMS
Description
Wheelock’s Series MB Motor Bells provide a better engineered
motor bell for fire and life safety alarm systems. The Wheelock Series
MB Bells include higher dBA, low current draw, built-in trimplate for
semi-flush mounting, low frequency aluminum shells, and low RFI
noise. The motor for Series MB Bells is a durable, high torque
permanent magnet motor selected for its high performance and long
life.
Helping People Take Action
SERIES MB MOTOR BELLS
INC.
SM
These DC vibrating Series MB Motor Bells are offered in 6” and 10”
shell sizes in both 12 and 24 VDC models.
Series RSSP Sync/Non-Sync strobe plates are used in conjunction
with the Series MB Motor Bell when combination appliances are
required. The Series RSSP retrofit plates are available with either
Multi-Candela or single candela strobes and easily mount to a 4”
square or Wheelock SBL-2 backbox.
The Series RSSP retrofit plates may be synchronized when
installed with the Wheelock Series SM, DSM, Sync Modules.
Wheelock’s synchronized strobes offer an easy way to comply
with recommendations concerning photo-sensitive epilepsy.
Features
• Approvals include: CAN/ULC-S525-99
• High sound output with low current draw
• Low frequency aluminum shells for better audibility
through walls, doors and other structures
• 6” and 10” shell sizes in 12 or 24 VDC models
• Integral RFI suppression to minimize included noise on
the NAC circuit
• Mounting options for surface, semi-flush, outdoor, and
concealed conduit installation
• Built-in trimplate makes semi-flush mounting
simpler and less expensive.
• Screw terminals permit fast in-out field wiring of
#12 to 18 AWG wire.
• Polarized for DC supervision of NAC circuits.
• Operates on filtered or unfiltered DC.
• For combined audible (bell) and visual signaling,
convenient strobe plate assemblies are available
with Multi-Candela or Single candela strobes
SERIES MB
RSSP STROBE PLA TE with SBL-2
RSSP STROBE PLA TE
Ordering Information
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R-21-6G-BM2493”621250.0
S-21-6G-BM1224”621250.0
R-42-6G-BM1493”642820.0
S-42-6G-BM2224”642820.0
R-21-01G-BM4493”0121250.0
S-21-01G-BM3224”0121250.0
R-42-01G-BM3493”0142820.0
S-42-01G-BM4224”0142820.0
Copyright 2004 Wheelock, Inc. All rights reserved.
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NOTE:
1. Typical dBA at 10 feet
is measured in an
S,R,N,K,J,E,D
anechoic chamber.
30
Architects and Engineers Specifications
The audible signal appliances shall be Wheelock Series MB vibrating Motor Bells or approved equal. They shall be ULC Listed
for Fire Protective Service. Shells shall be aluminum in 6” or 10” diameter. Sound output at 10 feet shall be 92 dBA @ 10 feet.
The bells shall incorporate a permanent magnet motor and provide the necessary suppression to minimize RFI. They shall
include a built-in trimplate for semi-flush mounting to standard 4” square backboxes, or surface mounting to Wheelock’s
indoor BB backbox or outdoor WBB backbox.
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Note: For more information on the Series RSSP-24MCW-FR, see data sheet S0410C or Installation Instructions P83911.
SELUDOMCNYS
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*Average Current per actual Wheelock Production Testing at listed VDC. For
Rated Average and Peak current across ULC regulated voltage range for
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both Filtered DC and Unfiltered VRMS, see Installation Instructions
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** Refer to Data Sheet S7000 for Mounting Options
#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). Refer to Data Sheet
S3000C or Installation Instructions P83123 for SM and P83177 for DSM.
Wiring
Fig. 1 Bell Models
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Wheelock products must be used within their published specification and must be properly specified, applied , installed,
operated, maintained and operationally tested in accordance with their installation instruction at the time of installation and at
least twice a year or more often and in accordance with local, state, and federal codes, regulations and laws. Specification,
application, installation, operation, maintenance and testing must be performed by qualified personnel for proper operation in
accordance with all of the latest National Fire Protection Association (NFPA), Underwriters’ Laboratories (UL & ULC), local,
state, county, province, district, federal and other applicable building and fire standards, guidelines, regulations, laws and
codes including, but not limited to all appendices and amendments an the requirements of local authority having jurisdiction
(AHJ).
Due to continuous development of our products, specifications and offering are subject to change without notice in accordance
with Wheelock, Inc. standard terms and conditions.
WARNING: PLEASE READ THESE SPECIFICA TIONS AND ASSOCIA TED INST ALLA TION INSTRUCTIONS CAREFULLY BEFORE USING,
SPECIFYING OR APPL YING THIS PRODUCT . FAILURE T O COMPL Y WITH ANY OF THESE INSTRUCTIONS, CAUTIONS OR W ARNINGS
COULD RESULT IN IMPROPER APPLICA TION, INST ALLA TION AND/OR OPERATION OF THESE PRODUCTS IN AN EMERGENCY SITUA TION,
WHICH COULD RESULT IN PROPERTY DAMAGE, AND SERIOUS INJUR Y OR DEA TH TO YOU AND/OR OTHERS.
WE SUPPORT AND ENCOURAGE NICET CERTIFICATION
31
ASSEMBLED IN THE USA
NATIONAL SALES OFFICE
800-631-2148
Canada 800-397-5777
E-Mail: Info@wheelockinc.com
http://www.wheelockinc.com
273 BRANCHPORT AVENUE • LONG BRANCH, NJ 07740 • TEL: 732-222-6880 • FAX: 732-222-2588
3 YEAR WARRANTY
Distributed By:
S1500C 02/05
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