D450-05-00
1
I56-376-08R
B406B Plug-in Detector Base
For use with the following smoke detectors:
In US:
1451, 2451, 2451TH, 4451HT, 5451
In Canada:
1451A, 2451A, 2451THA, 4451HTA, 5451A
In Europe:
1451E, 2451E, 4451E, 5451E
INSTALLATION AND MAINTENANCE INSTRUCTIONS
3825 Ohio Avenue
St. Charles, Illinois 60174
1-800-SENSOR2, FAX: 630-377-6495
Before Installing
Please thoroughly read the System Sensor manual I56-407,
Guide for Proper Use of System Smoke Detectors
, which pro-
vides detailed information on detector spacing, placement,
zoning, wiring, and special applications. Copies of this
manual are available at no charge from System Sensor. (For
installations in Canada, please refer to CAN4-S524,
Standard for the Installation of Fire Alarm Systems and CEC
Part 1, Sec. 32.)
NOTICE
: This manual should be left with the owner/user
of this equipment.
IMPORTANT
: The detector used with this base must be
tested and maintained regularly following NFPA 72 require-
Specifications
Base Diameter:
6.2 inches (15.7 cm)
Base Height:
1.1 inches (2.9 cm)
Weight:
0.3 lb. (130 g)
Mounting:
4-inch square box with or without plaster ring. Min. Depth–1.5 inches
4-inch octagon box. Min. Depth–1.5 inches
3
1
⁄
2
-inch octagon box. Min. Depth–1.5 inches
50 mm box; 60 mm box; 70 mm box
Operating Temperature Range:
–10° to 60°C (14° to 140°F)
Note: Do not install in locations where normal ambient temperature
exceeds 50°C (120°F)
Operating Humidity Range:
10% to 93% Relative Humidity
Electrical Ratings – includes base and detector
System Voltage:
24 VDC
Maximum Ripple Voltage:
4 Volts peak to peak
Start-up Capacitance:
0.02
µ
F Maximum
Standby Ratings:
15 VDC Minimum
35 VDC Maximum
120
µ
A Maximum
Alarm Ratings:
9 V Minimum at 18 mA
12 V Maximum at 100 mA
(Alarm current MUST be limited to 100 mA maximum by the control panel.)
Relay Contact Ratings:
Resistive or Inductive (60% power factor) Load
Form C*:
2.0A @ 30 VAC/DC
0.6A @ 110 VDC
1.0A @ 125 VAC
Reset Voltage:
1.4 VDC Minimum
Reset Time:
0.3 Seconds Maximum
Start-up Time:
34.0 Seconds Maximum
*For Canadian installations relay contact ratings are 2.0A @ 30 VAC/DC.
ments. The detector used with this base should be cleaned
at least once a year.
General Description
The B406B plug-in detector base is used with a variety of
System Sensor conventional detector heads. They are capa-
ble of accepting a variety of detector heads, which makes
them more versatile than equivalent direct-wired models.
Refer to the System Sensor catalog for other available plug-
in detector bases.
The B406B base is intended for use in 2-wire systems, with
screw terminals provided for power and relay contact con-
nections. These bases MUST be current limited by the sys-
tem control panel in the alarm state.
