System Sensor 4WTA-B Photoelectric i3 Smoke Detector, 4-Wire, Thermal Sensor, Built-In Sounder

The System Sensor 4WTA-B is a 4-wire, photoelectric i3 smoke detector with thermal sensor and built-in sounder.

System Sensor i3 series smoke detectors represent significant advancement in conventional detection. The i3 family is founded on three principles: installation ease, intelligence, and instant inspection.

The i3 line redefines installation ease with its plug-in design. This allows an installer to pre-wire bases (included with heads). The large wire entry port and in-line terminals provide ample room for neatly routing the wiring inside the base. The base accommodates a variety of back box mounting methods as well as direct mounting with drywall anchors. To complete the installation, i3 heads plug into the base with a simple Stop-Drop 'N Lock action.

i3 detectors offer a number of intelligent features to simplify testing and maintenance. Drift compensation and smoothing algorithms are standard with the i3 line to minimize nuisance alarms. 2-wire i3 detectors can generate a remote LED indicated maintenance signal when connected to the 2W-MOD2 loop test/maintenance module or a panel equipped with the i3 protocol. The SENS-RDR, a wireless device, displays the sensitivity of i3 detectors in terms of percent-per-foot obscuration.

The i3 series provides wide-angle red and green LED indicators for instant inspection of the detector's condition: normal standby, out-of-sensitivity, alarm, or freeze trouble. When connected to the 2W-MOD2 loop test/maintenance module or a panel with the i3 protocol, the EZ Walk loop test feature is available on 2-wire i3 detectors. This feature verifies the initiating loop wiring by providing LED status indication at each detector.

UPC: 783863019982
Also known as: 4WTAB, BK-4WTAB

Technical Specifications: Weight: 7.1 oz. (200 g) Wiring Gauge: 14-22 AWG Sensitivity: 2.5%/ft. nominal Freeze Trouble: 41°F (5°C) Operating Humidity Range: 0% to 95% RH, noncondensing Operating Temperature Range: 32° to 100°F (0° to 37.8°C) Alarm Contact Ratings: 0.5A @ 30V AC/DC Standby Current: 50µA maximum average Alarm Current: 35mA max. Maximum Ripple Voltage: 30% of nominal (peak to peak) Operating Voltage: 12/24 V non-polarized nominal, 10 min. to 35 max. Sounder: 85 dBA Heat Sensor: 135°F (57.2°C) fixed Wiring: 4-wire Detection: Photoelectric Dimensions: 2.0" (51mm) H x 5.3" (127mm) Dia.

For more information about the System Sensor 4WTA-B, please contact us.