B524BI

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 Electrical Ratings Operating Voltage: Standby Ratings: Set Time: Reset Time: 15 to 32 VDC