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400 Series
Plug-in Smoke Detector
Models Available
1451
1451A
5451
Ionization Detector
Ionization Detector,
ULC Listed
Thermal Rate-of-Rise
SSV120-6
Product Overview
Low standby current
Two visible LEDs “blink” in standby and
provide a 360° field viewing angle
Wide variety of mounting bases with
built-in shorting spring
Detector head plugs easily into base
Built-in test switch
Field sensitivity metering of detector to
meet the requirements of NFPA 72
Built-in tamper-resistant feature
SEMS screws for easy wiring
Optional recessed mounting
Removable cover and insect screen for
field cleaning
System Sensor’s 400 Series plug-in smoke detectors are designed to meet the
performance criteria designated by UL/ULC. The ion units have a sensing chamber
sealed from 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 recessed mounting option, interchangeable ion, thermal detectors, a vari-
ety of mounting bases, and a full line of optional accessories.
Ionization.
All 400 Series ionization smoke detectors include a specially designed dual
source, dual unipolar detector chamber design which will sense the presence of smoke
particles produced by fast combustion as well as slow smoldering fires. This chamber
exhibits increased stability, significantly reduces nuisance alarms, and provides better
performance at higher air velocities.
Thermal.
The 400 Series thermal rate-of-rise with fixed heat detector contains a
unique dual thermistor heat sensing circuit to provide maximum performance and
solid state reliability. The Model 5451 is designed to initiate an alarm at 135°F and
to respond to a temperature increase in excess of 15° per minute. This enables the
heat detector to communicate an alarm to the central control panel prior to reaching
the static set point for these high rates of rise, providing a timely response to both
rapid and slow temperature increases. This model should be used in applications
where rapid response is desired and where rapid temperature increases would only be
caused by a fire emergency.
Mounting Base Selection Guide
Base Model
Number
B401B
B401BR
B402B
B404B
Version
UL/ULC
UL/ULC
UL/ULC
UL/ULC
Loop
Type
2-wire*
2-wire*
4-wire
4-wire
Current
Limit Resistor
No
Yes
Yes
Yes
Alarm
Contact Type
—
—
Form A&C
Form A&C+A
Supervisory
B406B
B401†
B401R†
UL/ULC/EN-54
UL/EN-54
EN-54
2-wire*
2-wire*
2-wire*
No
No
Yes
Form C
—
—
24VDC
12/24VDC††
24VDC
12–100**
10–100**
10–62
Nominal
Voltage
12/24VDC††
24VDC
24VDC
120VAC
Current Draw
on Alarm (mA)
10–100**
10–62
14–39
75 mA AC Max
*Functionality contingent on panel compatibility.
**Must be limited by control panel.
Relay Contact Ratings:
Resistive or Inductive
(60% power factor) load.
Form A:
2.0A at 30 VAC/DC
Form C: 0.6A at 110VDC, 2.0A at 30VDC
1.0A at 125VAC, 2.0A at 30VAC
†Flangeless base
†† Although B401B and B401 bases are capable
of operating at 12 and 24 VDC, they cannot be
used with the 5451 in 12 V applications.
Junction Box Selection Guide*
Single
Gang
B401/B401R
B401B/BR
No
Yes
3.5” Octagon
No
Yes
Yes
No
4” Octagon
No
Yes
Yes
Yes
4” Square
No
Yes
Yes
Yes
50 mm
Yes
No
Yes
No
60 mm
Yes
No
Yes
No
75 mm
No
No
Yes
No
B402B/B406B Yes
B404B
No
* Box depth contingent on base and wire size.
Refer to National Electrical Code of local applicable codes for appropriate recommendations.
Specifications
Operating Voltage/Alarm Current:
Mounting base dependent (see char t
on page 2)
Standby Current:
Ion:
120 µA maximum
Thermal:
100 µA maximum
Sensitivity:
1.9% + ±6%/ft. Ion
Weight:
1451:
0.5 lb. (227 gm)
5451:
0.3 lb. (136 gm)
Size:
3.2”/8.1 cm height
4.0”/10.2 cm diameter,
unflanged base
6.2”/15.7 cm diameter,
flanged base
Construction:
Flame retardant Nor yl plastic
Operating Temperature:
1451:
32°F to 120°F (0°C to 49°C)
5451:
32°F to 100°F (0°C to 38°C)
Alarm Point, Thermal:
135°F (57.2°C) or 15°F/min.
rate of rise
Humidity Range:
10 – 93% RH non-condensing
Air Velocity Rating:
Ionization: 1200 fpm maximum
Smoke Detector Spacing:
For ion detectors on smooth ceilings
(as defined in NFPA 72), spacing of
30 feet (900 sq. ft.) may be used
as a guide. For thermal detectors on
smooth ceilings (as defined in NFPA
72), spacing of 50 feet (2500 sq. ft.)
may be used. Other spacing may be
used depending on ceiling height, high
air movements, and other conditions
or response requirements.
(–)
(–)
OPTIONAL
RA400Z
(–)
OPTIONAL
(–)
2
(–)
3
RA400Z
(–)
2
(–)
3
EOL
RESISTOR
(+)
1
4
(+)
1
4
(+)
(+)
(+)
(+)
OPTIONAL FAULT TOLERANT WIRING
B401 Series
RED (+)
(+)
PURPLE
EOL POWER
SUPERVISION
RELAY, A77-716B
(–)
RA400Z
(OPTIONAL)
RA400Z
(OPTIONAL)
(–)
5
1
10
8 9
(+)
(–)
14
13
12
11
5
1
10
8 9
COM
N.C.
N.O.
(+)
AUXILIARY
CONTACTS
14
13
12
11
COM
N.C.
N.O.
AUXILIARY
CONTACTS
B402B
120 VAC
K
AC
BL
K
AC
BL
ALARM CIRCUIT
120 VAC
K
AC
BL
AC
BL
(–)
3
RA400Z
(OPTIONAL)
2
4
(–)
3
RA400Z
(OPTIONAL)
2
4
1
(+)
5
6
7
10
8 9
14
13
12
11
COM
N.C.
N.O.
1
(+)
AUXILIARY
FORM C
CONTACTS
5
6
7
10
8 9
14
13
12
11
COM
N.C.
N.O.
AUXILIARY
FORM C
CONTACTS
SUPERVISION CIRCUIT
EOL
RESISTOR
ALARM
CONTROL
PANEL
ALARM CIRCUIT
B404B
(+)
PURPLE
2
2
BLK
EOL
RESISTOR
2
3
5
1
4
2
3
5
1
4
14
13
12
COM
N.C.
N.O.
AUXILIARY
CONTACTS
14
13
12
COM
N.C.
N.O.
AUXILIARY
CONTACTS
(–)
B406B
OPTIONAL NFPA CLASS “A” WIRING
EOL
RESISTOR
3
4
3
4
(–)
K
Ordering Information
Part No.
1451
1451A
5451
Description
Ionization detector. Must be mounted to one of the B40X series bases listed in Mounting Base Guide.
Same as above, Canadian model
Fixed heat detector with rate-of-rise. Alarm point at 57.2°C (135°F). Must be mounted to one of the 400
Series Bases listed in Mounting Base Guide.
Accessories
RA400Z
B401BH
MOD400R
RMK400
SMK400
EOLR-1
RS14
DUST45
CRT400
M02-04-01
M02-09-00
XR5
XP-4
Description
Remote annunciator for 2- or 4-wire systems, 3–32V. Use with ion and photo plug-in detectors.
Fits standard U.S. single gang electrical box.
Sounder base with B401. Requires an external 24 VDC power supply.
Mounts to 4” square electrical box (1
1
/
2
” minimum depth).
Detector sensitivity test tool. (See below.) Use with most analog or digital multimeters.
Satisfies requirement of NFPA 72 for sensitivity testing. (See below.)
Recessed mounting kit for use with B401 or B401R mounting bases only. (See below.)
Sur face mounting kit provides for entr y of sur face wiring conduit.
For use with B401 or B401R mounting bases only.
End of line relay for power super vision, 12/24 VDC, 4-wire only.
Replacement insect screen for 1451.
Replacement protective dust cover for plug-in 400 Series.
Cover removal tool for 1451.
Test magnet.
Test magnet with 32 inch telescoping handle.
Detector removal tool. Allows installation and/or removal of ion, photo,
and thermal detector heads from base in high ceiling installations.
Extension pole for XR5. Comes in three 5 ft. sections.
The MOD400R Field Sensitivity Test Module can be used with
any standard DC voltmeter or multimeter to check the sensitivity
range of System Sensor’s detectors (satisfies NFPA 72 require-
ment for sensitivity testing).
System Sensor’s Recessed Mounting Kit, RMK400, provides
a simple installation solution where applications demand a
lower profile smoke detector and reduces the depth of any
400 Series plug-in detector by almost an inch. A special
metal mounting bracket secures the kit and the base to
the junction box and ceiling panel. (For use with B401 and
B401R bases only.)
System Sensor Sales and Service
System Sensor Headquarters
3825 Ohio Avenue
St. Charles, IL 60174
Ph: 800/SENSOR2
Fx: 630/377-6495
www.systemsensor.com
System Sensor Canada
Ph: 905.812.0767
Fx: 905.812.0771
System Sensor Europe
Ph: 44.1403.891920
Fx: 44.1403.891921
System Sensor in China
Ph: 86.29.8832.0119
Fx: 86.29.8832.5119
System Sensor in Singapore
Ph: 65.6273.2230
Fx: 65.6273.2610
System Sensor – Far East
Ph: 85.22.191.9003
Fx: 85.22.736.6580
System Sensor – Australia
Ph: 613.54.281.142
Fx: 613.54.281.172
System Sensor – India
Ph: 91.124.237.1770 x.2700
Fx: 91.124.237.3118
System Sensor – Russia
Ph: 70.95.937.7982
Fx: 70.95.937.7983
A05-0205-005•3/05•#1427
© 2005 System Sensor. The company reserves the right to change product specifications without notice.
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