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B404B Fiches technique(PDF) 1 Page - Systemsensor advanced ideas.

No de pièce B404B
Description  Duct Smoke Detector for Special Applications
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Fabricant  SYSTEMSENSOR [Systemsensor advanced ideas.]
Site Internet  http://www.systemsensor.com
Logo SYSTEMSENSOR - Systemsensor advanced ideas.

B404B Fiches technique(HTML) 1 Page - Systemsensor advanced ideas.

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Model
2451 with B404B/B404BT
and RTC Remote Test Kit
Product Overview
Low standby current
Two LEDs “blink” in standby
Detector head plugs easily into base
Field adjustable sensitivity
Built-in test switch
Field sensitivity metering of detector to meet
the requirements of NFPA 72
120VAC and 24VAC/DC bases with built-in
shorting spring
Built-in tamper-resistant feature
Designed for mounting on standard electrical box
SEMS screws for easy wiring and positive wire
retention
Removable cover and insect screen for field
cleaning
H
V A
C
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M
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Duct Smoke
Detector for Special
Applications
UL 268A
(Requires RTC
accessory)
2451 with B404BT and RTC
(Includes the RTS451)
The System Sensor 2451 photoelectronic smoke detector is UL listed
to UL 268A specifically for use in no-flow/low-flow air-handling sys-
tems. It’s designed for installations where a standard Venturi principle
duct smoke detector is unsuitable. This is the perfect combination for
installation in ducts where the air velocity is below 500 fpm or for duct
sizes as small as 8 inches in diameter. Pendant mounted in a standard
electrical box within the duct, the twist-in/twist-out head allows easy
removal from the base for quick cleaning and maintenance. The detec-
tor can be combined with the System Sensor B404B 120VAC base or
the B404BT 24VAC/DC base. Remote testing is accomplished using our
Remote Test Coil accessory that includes the RTS451. The APA451,
Remote Annunciator with Piezo Alarm, can also be connected to pro-
vide an audible and visible indication of smoke detector status.
Specifications
Operating Voltage/ Alarm current
Mounting base dependent (see chart)
Standby current
120 mA maximum
Sensitivity
3% ± .7% / ft.
Weight
0.5 ib. (277 g)
Size
3.2˝/8.1 cm height
6.2˝/15.8 cm diameter
Construction
Flame retardant Noryl plastic
Operating Temperature
32° to 120°F (0° to 49°C)
Humidity Range
10 to 93% RH non-condensing
Air Velocity Rating
0 to 3000 fpm maximum


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