Conventional Products—2400 and 2400TH Direct 2-Wire Smoke Detectors 5
Table 2: Specifications Summary
Specifications
Diameter
5.5 in. (140 mm)
Height
3.14 in. (80 mm)
Add 0.5 in. (13 mm) for all models with a
“T” suffix (i.e., 2400TH)
Weight
0.7 lb (318 g)
Operating Temperature Range
Model 2400--0 to 49°C (32 to 120°F)
Model 2400TH--0 to 38°C (32 to 100°F)
Operating Humidity Range
10 to 93% RH, Non-condensing
Maximum Air Velocity
3,000 ft/min. (15m/s)
Locking Alarm
Reset by momentary power interruption
Fixed Temperature Head Detector
135
°
F (57
°
C)
Electrical Ratings
System Voltage
12/24 VDC
Maximum Ripple Voltage
4 volts Peak-to-Peak
Startup Capacitance
0.02
µF Maximum
Standby Ratings
8.5 VDC Minimum
35 VDC Maximum
120
µA Maximum
Alarm Ratings
4.2 VDC Minimum at 10 mA
6.6 VDC Maximum at 100 mA
Alarm current must be limited to 100 mA
maximum by the control panel. If used, the
RA400Z Remote Annunciator operates
within the specified detector alarm currents.
Detector Sensitivity Setting
3.0 ± 0.7 %/ft. obstruction
Reset Voltage
2.5 VDC Minimum
Reset Time
0.3 Sec. Maximum
Startup Time
34 Sec. Maximum