i3 Series Smoke Detectors

System Sensor 4WTR-B Smoke Detector w/ Thermal and Relay

$72.95

Replacement For System Sensor 2112/24R, 2112/24TR2112/24TS

Detection:	Photoelectric

Wiring:	4-wire

Heat Sensor:	135°F (57.2°C) fixed

Operating Voltage:	12/24 V non-polarized nominal, 10 min. to 35 max.

Maximum Ripple Voltage:	30% of nominal (peak to peak)

Alarm Current:	35mA max.

Standby Current:	50µA maximum average

Alarm Contact Ratings:	0.5A @ 30V AC/DC

Auxiliary Contact:	Form C

Auxiliary Contact Ratings:	2A @ 30V AC/DC

Temperature Range:	32° to 100°F (0° to 37.8°C)

Humidity Range:	0% to 95% RH, noncondensing

Freeze Trouble:	41°F (5°C)

Sensitivity:	2.5%/ft. nominal

Wiring Gauge:	14-22 AWG

Dimensions:	2.0" (51mm) H x 5.3" (127mm) Dia.

Weight:	7.1 oz. (200 g)

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