GE Security 449AT, 449C, 449CRT, 449CSRH, 449CSRT Specsheet

P R O D U C T I N F O R M A T I O N B U L L E T I N

449/448 SERIES

Self-Diagnostic, Four­Wire, Photoelectric
Smoke Detectors

Model numbers:
449AT, 449C, 449CT, 449CRT, 449CST, 449CSTE,
449CSRT, 449CSRH, 449CTE

California State Fire Marshal Approved
MEA (New York City) Approved

ULC model numbers:
448AT, 448C, 448CT, 448CST, 448CSRH, 448CTE

• Intelligent, self-diagnostics

• On-site maintenance alert

• Field replaceable optical chamber

• Low-profile design

• Plug-in terminal block

• Advanced false alarm immunity

The ESL 449/448 Series self-diagnostic, four-wire
smoke detectors continually monitor their own

sensitivity and operational status, and provide a
visual trouble indication if they drift out of sensitivity
range or fail internal diagnostics. This unique,
patented technology meets NFPA 72 field sensitivity
testing requirements without the need for external
meters.

Additional diagnostic information is activated by
applying a magnet near the detector's integral reed
switch. This initiates a self-diagnostic routine and
provides visual indication of sensitivity level, or if
service is required.

This series is easily cleaned by simply replacing
ESL’s proprietary field-replaceable optical chamber. All
models are designed to reduce false alarms from
dust, insects, RFI, and external light.

An integral combination rate-of-rise and fixed
135°F (57°C), 50-foot rated, heat sensor is available
with all “T” model detectors (see selection guide),
allowing latching of the alarm for either smoke or
heat. The 449CSRH includes an isolated alarm
output for heat and activates an internal non-latching
sounder (local alarm) for smoke, making it ideal for
motel/hotel and dormitory rooms where smoking is

permitted.

continued

ESL 449 Series Smoke Detectors

Architectural and Engineering Specifications

The ESL 449 Series low-profile, self-diagnostic, four-wire
smoke detectors work on the light scattering principle. A
pulsed infrared light-emitting diode serves as the light source,
and a high-speed photodiode as the sensing element. When
the amount of light reflected onto the photodiode reaches the
sensitivity setting, the smoke sampling rate increases. Three
(3) successive smoke sensings above the sensitivity setting
are required to sound an alarm. This design has superior
protection against false alarms caused by dust, insects, RF
and ambient-light.

The proprietary optical sensing chamber is field replaceable,
allowing quick and easy cleaning and maintenance.
Models with auxiliary relays are approved for releasing
service.
This low profile product is equipped with a hinged cover, a
concealed tamper-resistant latch, and insect screens.
Wiring terminates in plug-in, clamp-type screw terminals.
Detectors mount to a standard single-gang electrical box, a
four-inch octagonal, four-inch square electrical box, or
WIREMOLD 5739 fixture box.

A confirmed alarm causes the normally flashing power
indicator LED to light continuously and the alarm relay to
operate. A trouble indication is automatically displayed by
flashing the LED every second. This meets NFPA 72 field
sensitivity testing requirements. An internal 85 dB horn
(available in “S” models) emits a temporal 3 when the
detector alarms and a steady tone when power polarity is
reversed.

Product Data

Sensitivity .................................................3.1 - 1.0%/ft. (max.)

3.1 + 0.50%/ft. (min)

Operating temp. range ............... 32°F to 120°F (0°C to 50°C)

Operating humidity range.................................... 0 to 95% RH

Minimum voltage - C, CT, CRT, CST, CSRT, CSRH ,

- CSTE.........................................................................8.5V

- AT..............................................................................5.1V

Maximum voltage - C, CT, CRT, CST, CSRT, CSRH,

- CSTE...........................................................................33V

- AT................................................................................27V

Maximum ripple (peak to peak)........................................ 10%

Typical average standby current .....................................70µA

- CSTE........................................................................23mA

Typical alarm current - C, CT and AT ............................15mA

- CRT ..........................................................................31mA

Selection Guide

Smoke Detector Spacing

On smooth ceilings (as defined in NFPA 72), spacing of 30 feet
(9.1 meters) may be used as a guide. Other spacing may be used
depending on ceiling height, high air movement, and other
conditions or response requirements.

- CST .......................................................................... 40mA

- CSRT, CSRH, CSTE................................................ 51mA

Typical avg. polarity reverse current

- CST, CSRT, CSTE, and CSRH................................10mA

Sounder specifications ......................................... 85 dB at 10'

Heat detector specifications

- fixed temperature ..................................... 135°F (57.2°C)

- rate of rise .... 15°F/min. & >105°F (8.3°C/min. & >40.6°C)

Auxiliary relay contacts 2A @ 28 VDC or 120 VAC (resistive)

Alarm contacts ........................ 500 mA @ 36 VDC (resistive)

Field wiring size.................................................. 14 - 24 AWG

Packaging .......................10 detectors are packed in a carton

Color....................................................white cover/white base

with UV inhibitor to prevent yellowing

Listing.............................. UL 268, ULC FM, CSFM and MEA

Designator Feature Description

H Isolated Fixed Temp. Isolated fixed 135°F (57°C) and rate of rise heat detector, independently trips the LED and

alarm and Rate of Rise output. Smoke detector activates internal sounder (local alarm) and auxiliary relay , but
Heat Detector does not latch. Approved as both single station smoke alarm and system heat detector.

Ideal for hotel, motel and dormitory rooms where smoking is allowed.

R Auxiliary Relay Used to activate other devices such as elevator recall, door holders, strobes, etc. Listed for

releasing service.

S Built-in Sounder 85dB built-in sounder alarms when smoke is detected or when power wiring polarity is

reversed.

T Intergrated Fixed Intergrated Fixed 135°F (57°C) temperature and rate of rise heat detector.

T emp. and Rate of Either heat detector or smoke detector can trip and latch LED and alarm protection.
Rise Heat Detector relay outputs.

E Built-in end of line Relay is normally energized and will trip with loss of power. Can also provide notification

power supervision relay when detector needs maintenance.

PH

E-3965 Rev B-1101

503.692.4052

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