As a seasoned tech, you know that the System Sensor 4W-B i3 series is the gold standard for reliable 4-wire smoke detection in both commercial and residential projects. This plug-in photoelectric smoke detector operates on a 12/24V non-polarized nominal voltage, making it highly versatile for various fire alarm control panels. Built with advanced drift compensation and smoothing algorithms, the 4W-B automatically adjusts its sensitivity to maintain accuracy as environmental conditions fluctuate, significantly reducing nuisance alarms. The included standard mounting base features a large wire entry port and in-line SEMS terminals (14-22 AWG), facilitating a clean install into 4-inch octagonal or square back boxes. For troubleshooting, the wide-angle, dual-color LED provides instant visual status for normal standby, out-of-sensitivity, and alarm conditions. With a 0.5 Amp contact rating and photoelectric sensing technology, this 4-wire smoke detector ensures superior response to smoldering fires while simplifying loop testing for the contractor. Key Benefits Installation Efficiency: Features a "Stop-Drop 'N Lock" attachment to the base and a plug-in design that allows for pre-wiring. Intelligent Maintenance: Integrated drift compensation prevents false triggers by accounting for dust accumulation over time. Detailed Diagnostics: Dual-color LED indicators simplify field inspection by identifying power-up, standby, and maintenance-needed states. Durable Construction: Removable detector cover and chamber allow for easy cleaning in the field without decommissioning the device. System Compatibility: Works seamlessly with conventional 12/24V systems and addressable panels utilizing 4-wire supervising relays. Common Questions Can I wire the 4W-B as a 2-wire detector? No, this is dedicated 4-wire smoke detection hardware requiring separate power and initiation circuit wiring; use the 2W-B for 2-wire applications. What is the maximum current draw for this unit? The 4W-B draws a maximum of 23mA at 24V during an alarm and a minimal 50 ?A standby current. How do I reset the detector after an alarm? Since this is a conventional 4-wire device, it is reset by momentarily interrupting the power supply from the control panel. Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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