A05-0228 Datasheet, PDF (3/4 Pages) Systemsensor advanced ideas. – 500 Series Intelligent Sensors with Integral Communications

5551B/5551R
The 5551B Intelligent Thermal Sensor’s unique dual
thermistor sensor will alarm at a fixed temperature of
135° F.
The 5551R Intelligent Thermal Sensor will alarm at
135° F and at an increase in excess of 15° per minute. This
enables the heat detector to communicate an alarm to the
central control panel prior to reaching the static set point,
providing a timely response to rapid temperature
increases.
Specifications – 5551B, 5551R
5551R with
6″ base
Dimensions
Height:
Diameter:
Shipping Weight:
Temperature Range:
Humidity Range:
Sensitivity
5551B:
5551R:
2.1″ (5.3 cm) detector in base
4.0″ (10.2 cm)
installed in B501 base
6.1″ (15.5 cm)
installed in B501B base
0.3 lbs. (150 g)
32° to 100° F (0° to 38° C)
10% to 93% RH noncondensing
Operating Voltage:
15–32 VDC peak, 6.5 mA
current for visible LEDs latched on
Standby Current:
200 µA
Sensor:
Electronic, dual thermistors
Thermal Sensor Spacing:
UL listed to 50 ft. spacing. Other spacing may be used
depending on ceiling height and other conditions. See
NFPA 72 for more details on spacing requirements.
135° F fixed temperature alarm
135° F fixed temperature or
15° rise per minute
REMOTE ANNUNCIATOR
+
-
+
CAUTION: Do not loop wire under terminal 1 or 2.
Break wire run to provide supervision of connections.
32
1
32
1
32
1
-
-
CLASS A OPTIONAL WIRING
+
500 Series Base
Wiring Diagram
Page 3
A05-228-01