B401 Plug-In Detector Base
INSTALLATION AND MAINTENANCE INSTRUCTIONS
3825 Ohio Avenue, St. Charles, Illinois 60174
1-800-SENSOR2, FAX: 630-377-6495
www.systemsensor.com
Before Installing
Please thoroughly read the
System Smoke Detectors
Application Guide
, which provides detailed information
on detector spacing, placement, zoning, wiring, and spe-
cial applications. Copies of this manual are available from
System Sensor.
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-
ments. The detector used with this base should be cleaned
at least once a year.
Specifications
Base Diameter:
10.2 cm (4.0 inches)
Base Height:
2.0 cm (0.8 inches)
Weight:
152 g (0.34 lb.)
Mounting:
50 mm box
60 mm box
Operating Temperature Range:
–10° to +60°C (14° to 140°F) — European Installation
0° to 49°C (32° to 120°F) — US/Australian Installation
Operating Humidity Range:
10% to 93% Relative Humidity
Electrical Ratings — includes base and detector
Base And Smoke Detector
Base And Heat Detector
System Voltage:
12/24 VDC
24 VDC
Maximum Ripple Voltage:
4 Volts peak to peak
4 Volts peak to peak
Start-up Capacitance:
0.02 µF Maximum
0.02 µF Maximum
Standby Ratings:*
8.5 VDC Minimum
15 VDC Minimum
35 VDC Maximum
35 VDC Maximum
120 µA Maximum
100 µA Maximum
Alarm Ratings:
4.2 VDC Minimum at 10 mA**
4.2 VDC Minimum at 10 mA**
6.6 VDC Maximum at 100 mA**
6.6 VDC Maximum at 100 mA**
Reset Voltage:
2.5 VDC Minimum
2.5 VDC Minimum
Reset Time:
0.3 Seconds Maximum
0.3 Seconds Maximum
Start-up Time:
34 Seconds Maximum
34 Seconds Maximum
* 1151E: 30 µA Maximum.
** Alarm current MUST be limited to 100 mA maximum (130 mA for models 1151 and 2151) by the control panel.
If used, the RA400Z Remote Annunciator operates within the specified detector alarm currents.
General Description
This B401 plug-in detector base is used with System Sensor
smoke and heat detector heads. The capability of plugging
these detectors into a variety of special bases makes them
more versatile than equivalent direct-wired models. Refer
to the System Sensor catalog for other available plug-in
detector bases.
The B401 base is intended for use in 2-wire systems, with
screw terminals provided for power and remote annuncia-
tor connections.
For use with the following detectors:
US Models:
1151, 1451, 2151, 2451, 2451TH, 5451
European Models:
1151E, 1451E, 2151E, 2451E, 5451E
Australian Models:
1151AUS, 1451AUS, 2151AUS, 2451AUS, 4451AUS
5451AUS, 51A51, 51B51, 51C51, 51D51
I56-0338-010R
1
I56-0338-010R
03-11
