Fire Alarm Systems > Smoke Detectors
4WT-B Photoelectric Smoke Detector w/ Thermal Sensor (BK-4WTB)

4WT-B Photoelectric Smoke Detector w/ Thermal Sensor (BK-4WTB)

4WT-B Photoelectric Smoke Detector w/ Thermal Sensor (BK-4WTB)

System Sensor’s i3™ series smoke detectors represent a significant advancement in conventional detection. The i3 family is founded on three principles: Installation ease, Intelligence, and Instant inspection.

Installation ease. The i3 line redefines installation ease with its plug-in design. This allows an installer to pre-wire the bases included with the 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-in to the base with a simple Stop-Drop ’N Lock action.

Intelligence. 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. When connected to the 2W-MOD2 loop test/maintenance module, or a panel equipped with the i3 protocol, 2-wire i3 detectors are capable of generating a remote maintenance signal when they are in need of cleaning. This signal is indicated via an LED located at the module and the panel. To read the sensitivity of i3 detectors, the SENS-RDR is a wireless device that displays the sensitivity in terms of percent per foot obscuration.

Features:

  • Detection: Photoelectric
  • Wiring: 4-wire
  • Heat Sensor: 135°F electronic thermistor
  • Operating Voltage: 12/24 VDC nominal - 10 min. to 35 max.
  • Alarm Current: 28mA typical - 35mA max. at 12V - 36mA typical - 45mA max. at 24V
  • Standby Current: 50 µA avg.
  • Auxiliary Contact Ratings: 1A@30 VDC
  • Temperature Range: 32° to 100°F (0° to 38°C)
  • Humidity Range: 10% to 93% RH - noncondensing
  • Dimensions: 1.7 Inch (43mm) H x 5.5 Inch (140mm) Dia.
  • Weight: 6.8 oz. (192 g)


Product #BK-4WTB
Price: US $40.92
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