Features
Cooper-Wheelock ET Series
• ADA/NFPA/UFC/ANSI compliant.
Low-Profile Speakers & Speaker Strobes
• Meets OSHA 29 Part 1910.165.
• Wall mount models are available with
Field Selectable Candela Settings of
15/30/75/110cd or 135/185cd (Multi-
Candela models) or 15/75cd (Single
Candela model).
Description
Cooper-Wheelock’s high performance Series
ET Speakers and Series ET Speaker Strobes
provide high audio output, clear audibility,
dual voltage (25/70 VRMS) capability and field
selectable taps from 1/8 to 8 watts. They are
designed to meet the critical needs of the life
safety industry for effective emergency voice
communications, tone signaling and visible
• Ceiling mount models are available with
field selectable candela settings of
15/30/75/95cd or 115/177cd (multi-
candela models).
ET70 Series Speaker Strobe
signaling to alert the hearing impaired.
• Strobes produce 1 flash per second over
the regulated voltage range.
The low profile design incorporates a speaker
mounting plate for faster and easier installa-
tion. Each model has a built-in level adjust-
ment feature and an aesthetic two (2) screw
grille cover.
• 24 VDC with wide UL “Regulated Voltage”
using filtered DC or unfiltered VRMS input
voltage.
• Synchronize with Cooper-Wheelock SM,
DSM or power supply with built-in Whee-
lock sync protocol.
The Series ET Speaker Strobe models incor-
porate Low Current draw Series RSS
Strobes.
ET90 Series Speaker Strobe
• Field selectable taps for 25 or 70 VRMS op-
Strobe options for wall mount models include
15/75 cd or Cooper-Wheelock’s patented
MCW multi-candela strobe with field select-
able candela settings of 15/30/75/110cd or
the high intensity MCWH strobe with field
eration from 1/8 watt to 8 watts.
• High efficiency design for maximum output
at minimum wattage across a frequency
range of 400 to 4000 HZ.
selectable 135/185cd. Ceiling mount models
Multi-Candela Indicator
(bottom of Strobe Lens)
are available in Cooper-Wheelock’s patented
MCC multi-candela ceiling strobe with field
selectable intensities of 15/30/75/95cd or the high intensity MCCH strobe with
field selectable 115/177cd.
• Fast installation with IN/OUT screw termi-
nals using 12 to 18 AWG wires.
Listings
The strobe portion of all Series ET Strobes may be synchronized when used
with the Cooper-Wheelock SM, DSM sync modules or any power supply with
patented Cooper-Wheelock Sync Protocol. Cooper-Wheelock’s synchronized
strobes offer an easy way to comply with ADA recommendations concerning
photosensitive epilepsy.
Listings and approvals below apply to the
basic ET Series Low Profile Speakers and
Speaker Strobes. In some cases, certain
modules may not be listed by certain ap-
proval agencies, or listing may be in proc-
ess. Consult factory for latest listing status.
Series ET70 and ET90 Speaker Strobes are UL Listed for indoor use under
Standard 1971 (Signaling Devices for the Hearing Impaired) and Standard 1480
(Speaker Appliances), and use a Xenon flashtube with solid state circuitry en-
closed in a rugged Lexan® lens to provide maximum reliability for effective visual
signaling. All inputs are supervised and employ IN/OUT wiring terminals for fast
installation using 12 to 18 AWG wiring.
• UL Listed: files S2652 (Speakers), S2652/
S5391 (Strobe/Speakers)
• MEA Listed. file 151-92-E Vol. XXI
• CSFM approved: files 7135-0785:135,
7125-0785:146, 7125-0785:152
Color options for Series ET speakers and speaker strobes are red or white.
Cooper-Wheelock’s Weatherproof Low Profile Speaker Strobe, Series ET70WP-
2475W-FR appliance has an extended temperature range of -31° F to 150° F
(-35° C to 66° C) that will satisfy virtually all outdoor and severe environment
applications.
The strobe has a 75 candela intensity on axis at 31°F (-35°C) and 180cd at 77°F
(25°C) with low current draw. For outdoor applications, the ET70WP-2475W-FR
must be wall mounted to a Weatherproof Back Box (IOB).
ET Low Profile Speakers & Strobes
CS-2240 09/01/06
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