INSTALLATION AND MAINTENANCE INSTRUCTIONS
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
Specifications
Base Diameter:
Base Height:
Weight:
Mounting:
Operating Temperature Range:
Operating Humidity Range:
Electrical Ratings – includes base and detector
System Voltage:
Maximum Ripple Voltage:
Start-up Capacitance:
Standby Ratings:
Alarm Ratings:
Relay Contact Ratings:
Resistive or Inductive (60% power factor) Load
Form C*:
Reset Voltage:
Reset Time:
Start-up Time:
*For Canadian installations relay contact ratings are 2.0A @ 30 VAC/DC.
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-
D450-05-00
6.2 inches (15.7 cm)
1.1 inches (2.9 cm)
0.3 lb. (130 g)
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
⁄
-inch octagon box. Min. Depth–1.5 inches
2
50 mm box; 60 mm box; 70 mm box
–10° to 60°C (14° to 140°F)
Note: Do not install in locations where normal ambient temperature
exceeds 50°C (120°F)
10% to 93% Relative Humidity
24 VDC
4 Volts peak to peak
0.02µF Maximum
15 VDC Minimum
35 VDC Maximum
120 µA Maximum
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.)
2.0A @ 30 VAC/DC
0.6A @ 110 VDC
1.0A @ 125 VAC
1.4 VDC Minimum
0.3 Seconds Maximum
34.0 Seconds Maximum
1
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.
3825 Ohio Avenue
St. Charles, Illinois 60174
1-800-SENSOR2, FAX: 630-377-6495
I56-376-08R
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