SYSTEMSENSOR 2151T

100 Series™
Low-Profile Plug-in
Smoke Detectors
System Sensor 100 Series Plug-in Smoke Detectors offer
superb performance and reliability in a profile which is
just 2˝ (5.1 cm) deep.
Model 2151 (photoelectric sensor) and model 2151T (photoelectric
sensor with thermal) can be used with a variety of 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.
Features
The 100 Series 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.
•Hand-held sensitivity reader available
•Sleek, low-profile design
•Compatible with 400 Series product
•Two LEDs blink in standby, providing 360° visibility
•Broad range of adapter bases available with built-in shorting spring
All 100 Series 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.
Model 2151 photoelectric detector’s unique optical sensing chamber
is engineered to sense smoke by a wide range of combustion
sources. Dual electronic thermistors add 135°F fixed temperature
thermal sensing on model 2151T.
Agency Listings
S911
CS308
7272-1653:122
3025009
205-94-E
2180
100 Series Plug-in Smoke Detector Specifications
Operating Voltage/Alarm Current
Standby Current
Sensitivity
Height
Diameter
Shipping Weight
Construction
Temperature
UL Listed Velocity Range
Humidity Range
Smoke Detector Spacing
See Adapter Base Selection Guide following
120µA Standby (when mounted in a B110LP base)
1 – 3.18%/ft.
2.0˝ in B401
4.1˝ installed in B401; 6.2˝ installed in B110LP
5.2 oz
Flame retardant thermoplastic
Photo: 32°F to 120°F (0° to 49°C); Photo/thermal: 32°F to 100°F (0° to 38°C)
Photo: 0 – 3000 fpm (0 – 15.2 m/s)
10% – 93% RH non-condensing
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.
Adapter Base Selection Guide
Base Model Number
Loop Type
Current Limit Resistor
Contact Type
Nominal Voltage
B110LP/B401B**
B110RLP/B401BR**
B112LP/B402B**
B114LP/B404B**
B116LP/B406B**
B401††
No
Yes
Yes
Yes
No
No
—
—
Form A&C
Form A&C + A Supervisory
Form C
—
12/24VDC
24VDC
24VDC
120VAC
24VDC
12/24VDC
2-wire*
2-wire*
4-wire
4-wire
2-wire*
2-wire*
Current Draw on
Alarm (mA)
10–130†
10–62
17–36
75 mA AC Max
20–100†
10–130†
*Functionality contingent on panel compatibility †Must be limited by control panel ††Flangeless base
**The 400 Series 6-inch bases, B401B, B401BR, B402B, B404B, and B406B, have been made compatible with the
new 100 Series for retrofit applications only. When using these 400 Series bases, use the F110 flange.
Relay Contact Ratings:
Form A:
Form C:
Resistive or Inductive (60% power factor) load.
2.0A at 30 VAC/DC
0.6A at 110VDC, 2.0A at 30VDC
1.0A at 125VAC, 2.0A at 30VAC
Junction Box Selection Guide*
Base Model Number
Single Gang
B401
No
3½˝ Octagon
No
4˝ Octagon
No
4˝ Square
No
50 mm
Yes
60 mm
Yes
75 mm
No
B110LP/RLP
Yes
Yes
Yes
Yes
No
No
No
B112LP/B116LP
B114LP
Yes
No
Yes
No
Yes
Yes
Yes
Yes
Yes
No
Yes
No
Yes
No
*Box depth contingent on base and wire size. Refer to National Electrical Code or local applicable codes for appropriate recommendations.
Ordering Information
Part No.
2151
2151T
Accessories
F110
RA400Z
B401BH-2
SENS-RDR
SMK400
EOLR-1
M02-04-01
M02-09-00
XR-2B
XP-4
C58-227-01
RMK400
Description
Low-profile photoelectric detector. Must be mounted to one of the B100 Series or B400 Series bases listed in the Adapter Base Selection Guide.
Low-profile photoelectric detector with thermal. Must be mounted to one of the B100 Series or B400 Series bases listed in the Adapter Base
Selection Guide.
Retrofit replacement flange for B400 Series flanged bases.
Remote annunciator for 2 or 4 wire systems, 3–32V. Fits standard single gang electrical box.
Sounder base. Requires an external 24 VDC power supply. Mounts to 4˝ square electrical box (1½˝ minimum depth, 21⁄8˝ recommended).
Hand-held sensitivity reader.
Surface mounting kit provides for entry of surface wiring conduit. For use with B401 or B401R mounting bases only.
End of line relay for power supervision, 12/24 VDC systems.
Test magnet.
Test magnet with 32˝ telescoping handle.
Detector removal tool. Allows installation and/or removal of 100 Series detector heads from base in high ceiling installations when used with XP-4.
Extension pole for XR-2B. Comes in three 5 ft. sections.
Replacement dust cover for 100 Series smoke detectors.
Recessed mounting kit (B401 sold separately).
3825 Ohio Avenue • St. Charles, IL 60174
Phone: 800-SENSOR2 • Fax: 630-377-6495
©2007 System Sensor.
Product specifications subject to change without notice. Visit systemsensor.com for
current product information, including the latest version of this data sheet.
A05-0182-012 • 9/08 • #1799