400SERIES Datasheet, PDF (2/4 Pages) Systemsensor advanced ideas. – Direct-Wire Photoelectronic Smoke Detector

General Description
System Sensor 400 Series photoelectronic detectors are
specifically designed to meet the stringent performance
requirements of industrial and commercial fire detection/
alarm systems. The design of these detectors emphasizes
ease of installation and field maintenance.
The 400 Series offer 6 different photoelectronic detectors
with a variety of voltages, wiring configurations, and
thermal options.
Electrical Specifications
Control
Model Product
Panel
2400
Photo Detector
2-wire
2400TH Photo Detector w/Fixed Heat Sensor
2-wire
2412B
Photo Detector
4-wire
2412THB Photo Detector w/Fixed Heat Sensor
4-wire
2424
Photo Detector
4-wire
2424TH Photo Detector w/Fixed Heat Sensor
4-wire
* Must be limited by control panel
Relay Contact Ratings:
Resistive or inductive
(60% power factor) load
Alarm Contacts
Form A:
2.0A @ 30 VAC/DC
Form C:
2.0A @ 30 VAC/DC
0.6A @ 110 VDC, 1.0A @ 125 VAC
Reset Time:
.3 sec. (max.)
Startup Time:
34 sec. (max.)
Operating
Voltage
12/24 VDC
12/24VDC
12 VDC
12 VDC
24 VDC
24 VDC
Auxiliary
Contacts
No
No
Yes
Yes
Yes
Yes
Remote LED
Option
Yes
Yes
No
No
No
No
Current Consumption
Standby (max.) Alarm (max.)
120 µA
*
120 µA
*
120 µA
77mA
120 µA
77mA
120 µA
41mA
120 µA
41mA
Engineering Specifications
Smoke Detector shall be a photoelectronic type (model
2400, 2412, 2424) or a combination photoelectronic/
thermal (model 2400TH, 2412TH, 2424TH) with thermal
sensor rated at 135° F as manufactured by System Sensor.
Wiring connections shall be made by means of SEMS
screws. The detector will have a visible LED which will
blink in standby and latch on in alarm. The detector shall
have a nominal sensitivity of 3% per foot as measured in
the UL smoke box. The detector screen and cover should
be easily removable for cleaning. It shall be possible to
perform a sensitivity and functional test without the need
of generating smoke. Detector circuitry shall perform a self
test on the sensing chamber and internal electronics every
40 seconds. If circuitry fails, the detector LED shall stop
blinking. The detector shall have a mounting bracket that
allows for mounting to a 3¹/2″ or 4″ octagon box or 4″
square electrical box.
Page 2
A05-194-03