Intelligent
Relay and Isolator
Bases
A Division of Pittway
3825 Ohio Avenue, St. Charles, IL 60174
1-800-SENSOR2 (736-7672), Fax 630-377-6495
http://www.systemsensor.com
Models Available
B224RB Relay Base
B524RB Relay Base
B224BI Isolator Base
B524BI Isolator Base
Features
•
•
•
•
•
Easy plug-in of detector heads to bases
Terminal block wiring
Rugged industrial construction
Designed for direct surface or electrical box mounting
Relay bases provide:
–Form C contact for control of auxiliary functions
–Activation from the sensor head to remote
annunciator output
–Suitability for patient room annunciation, elevator
recall, and pilot duty on fan shutdown and damper
control
• Isolator bases provide:
–Isolation of short circuit
–Automatic restore when short circuit is corrected
–Suitability for NFPA 72, Style 7 applications
The System Sensor
intelligent relay and isolator bases
are designed for use with 200 and 500 Series plug-in
detectors. The complete line of relay and isolator bases is
designed for reduced installation costs and optimum
performance.
Specifications
Diameter:
Height
B224RB/BI:
B524RB/BI:
Weight:
Mounting:
6.2″ (157 mm)
1.2″ (31 mm)
1.4″ (36 mm)
5.76 oz.
4″ square box with or without
plaster ring, or 3
1
/
2
″
or 4″
octagonal box, min. depth 1.5″
(13 mm)
12–22 AWG, twisted pair
recommended
Operating
Temperature Range:
Operating
Humidity Range:
32° F to 120° F (0° C to 49° C)
10% to 93% relative humidity
(noncondensing)
Wiring Gauge:
APPROVED
© System Sensor 4/97
This document is not intended to be used for installation purposes.
A05-235-01
SYSTEMSENSOR [ SYSTEMSENSOR ADVANCED IDEAS. ]
