System Sensor 4WTA-B 4-Wire Smoke Detector Price in BD

Description

Product Name: System Sensor 4WTA-B 4-Wire Smoke Detector Price in BD

Product Overview

The System Sensor 4WTA-B (by Honeywell) is an i3 Series 4-wire photoelectric smoke detector featuring a built-in $135^\circ\text{F}$ ($57.2^\circ\text{C}$) fixed-temperature thermal sensor and an integrated $85\text{ dBA}$ sounder. It connects to 4-wire conventional fire alarm control panels to provide early smoke detection, local Temporal-3 sounder notification, and automatic drift compensation algorithms. Furthermore, its plug-in base design simplifies pre-wiring, installation, and field maintenance without disturbing loop wiring.

Specifications & Features

• Brand & Model: System Sensor by Honeywell (MPN: 4WTA-B)

• Product Type: 4-Wire Photoelectric Smoke Detector with Thermal Sensor and Sounder

• Detection Technology: Photoelectric smoke sensing chamber paired with a $135^\circ\text{F}$ ($57.2^\circ\text{C}$) fixed-temperature heat sensor.

• Integrated Sounder Output: Built-in sounder rated at $85\text{ dBA}$ minimum emitting a Temporal 3 (Temp-3) alarm tone.

• Alarm Contact Rating: Rated at $0.5\text{ A}$ @ $30\text{ VAC/DC}$.

• Operating Voltage: Nominal $12/24\text{ VDC}$ non-polarized ($10\text{ to }35\text{ VDC}$ operational range; $30\%$ peak-to-peak maximum ripple).

• Current Consumption:

  • Standby Current: $50\ \mu\text{A}$ maximum average.

  • Alarm Current: $35\text{ mA}$ maximum.

• Status Indicators: Dual-color LEDs (Red and Green) indicate power-up, standby, alarm, maintenance, and freeze trouble conditions.

• Environmental Features: Features automatic drift compensation, smoothing algorithms, maintenance notification signaling, and a freeze trouble threshold at $41^\circ\text{F}$ ($5^\circ\text{C}$).

• Operating Limits: Temperature rating $32^\circ\text{F}$ to $100^\circ\text{F}$ ($0^\circ\text{C}$ to $37.8^\circ\text{C}$) with $0\%\text{ to }95\%$ RH non-condensing.

• Physical Dimensions: $5.3\text{ in}$ Diameter $\times 2.0\text{ in}$ Height ($134\text{ mm} \times 51\text{ mm}$); Weight: $7.1\text{ oz}$ ($200\text{ g}$).

• Wiring & Terminals: SEMS screw terminals accepting 14 to 22 AWG field conductors.

Standards and System Compatibility

• UL Listing: Listed under ANSI/UL 268 Standard for Smoke Detectors for Fire Alarm Systems.

• Accessory Compatibility: Operates with 4-wire conventional fire alarm panels and compatible i3 Series accessories, including the RRS-MOD Reversing Relay/Synchronization Module for synchronized sounder operation where required by system design.

Technical Notice

Wiring & Power Supervision Notice: When integrating 4-wire smoke detectors, proper end-of-line power supervision relays (such as the verified A77-716B EOL relay) must be installed on the auxiliary power circuit to ensure panel fault monitoring upon power loss. Localized sounder activation and panel-controlled synchronization should be implemented according to manufacturer installation instructions.

Conclusion

The System Sensor 4WTA-B photoelectric 4-wire detector provides smoke detection, thermal sensing, and an onboard $85\text{ dBA}$ Temporal-3 sounder. Therefore, it serves commercial life-safety installations requiring 4-wire conventional smoke detection with localized audible alarm signaling.

Contact Us

For pricing inquiries and orders for the System Sensor 4WTA-B Smoke Detector in Bangladesh, get in touch with our team:

• Phone: +8801737118246

• Email: [email protected]