The Notifier SD-651 Plug-in Smoke Detectors offer superb
performance and reliability in a profile which is just 2” (5.1
cm) deep. Model SD-651 (photoelectric sensor) can be used
with a variety of different adapter bases in several wiring
configurations and voltages. Other features include: low
current draw, stable performance in high air velocities, built-in
tamper resistant base design, remote LED option, removable
cover, and built-in test switch.
The SD-651 is designed to meet the performance criteria
designated by UL. Its sensing chambers are sealed against
back pressure air flow, dirt, and insects. This chamber is protected by a fine mesh screen which can be cleaned or
replaced. Additional key features include a variety of
mounting bases and a full line of accessories.
SD-651 photoelectric smoke detectors contain a unique
optical sensing chamber designed to sense smoke particles
produced by a wide range of combustion sources. A custom
integrated circuit incorporates signal processing to reduce
false alarms.
Specifications
Operating Voltage/Alarm Current: See Adapter Base
Selection Guide following
Standby Current: 85μA Standby
Sensitivity: 1 - 3.18%/ft.
Height: 2.0” in B401
Diameter: 4.1” installed in B401; 6.1” installed in B110LP
Shipping Weight: 5.2 oz
Construction: Flame retardant thermoplastic
Temperature: Photo: 32°F to 120°F (0°C to 49°C)
UL Listed Velocity Range: Photo: 0–3000 fpm (0–15.2 m/s)
Humidity Range: 10%–93% RH non-condensing
Smoke Detector Spacing: On smooth ceilings (as defined in
NFPA 72), spacing of 30 feet (900 sq. ft.) may be used as a
guide. Other spacing may be used depending on ceiling
height, high air movements, and other conditions or response
requirements.
SD-651: Low-profile photoelectric detector. Must be mounted
to one of the B100 Series or B400 Series bases listed in the
Adapter Base Selection Guide.
F110: Retrofit replacement flange for B400 Series flanged
bases.
RA400Z: Remote annunciator for 2 or 4 wire systems, 3-32V.
Fits standard single gang electrical box.
B401BH-2: Sounder base. Requires an external 24 VDC
power supply. Mounts to 4” square electrical box (112” minimum depth, 218” recommended).
SMK400: Surface mounting kit provides for entry of surface
wiring conduit. For use with B401 or B401R mounting bases
only.
EOLR-1: End of line relay for power supervision, 12/24 VDC
systems.
M02-04-01: Test magnet.
M02-09-00: Test magnet with 32° telescoping handle.
XR-2B: Detector removal tool. Allows installation and/or
removal of SD-651 detector heads from base in high ceiling
installations when used with XP-4.
XP-4: Extension pole for XR-2B. Comes in three 5 ft.
sections.
C58-227-01: Replacement dust cover for SD-651 smoke
detectors.
RMK400: Recessed mounting kit (B401 sold separately).
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