RE-401BD
Overview
The Beam Smoke Detector is a high-performance, UL-certified reflective optical beam detection system designed for expansive and high-ceiling environments, offering early smoke detection, wide coverage, and simplified installation.
The RE-401BD series represents a modern solution for smoke detection in large open spaces where traditional point detectors are impractical or cost-prohibitive. Available in two models—RE-401BD-50 (5–50 meters) and RE-401BD-100 (5–100 meters)—Ravel detectors combine advanced optical technology with user-friendly features to deliver reliable fire protection in complex environments.

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Features
- Compliance and Certification RE-401BD detectors are UL 268 7th Edition certified, meeting thelatest globalstandards for smoke detection performance and safety.
- Early Detection – designed to rapidly detect smoke, providing an early warning of a potential fire
- Wide Coverage – suitable for spaces with high ceilings or expansive open areas where traditional pointdetectors may not be as effective
- Reduced False Alarms – reliable and effective fire detection solution
- Ease of Installation – simpler and more cost effective than deploying a large number of point detectorstocover the same area
- Adaptable – configurable threshold levels to the installation environment.
- Reduced Maintenance – lower overall costs and less disruption to building operations.
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Specification
Parameters Minimum Typical Maximum Unit Operating Voltage 15 24 32 V DC Operating Current 15 20 42 mA Operating Current – Alignment Modes – – 55 mA Alarm Current 25 33 55 mA Fault Current 3 10 30 mA Response Thresholds (25%, 35%, 50%, 75%) 25 35 75 % Delay to Alarm – 10 – s Delay to Fault – 10 – s Operating Distance (Separation between Detector and Reflector) 10 – 100 m Rapid Obscuration Fault Threshold – 85 – % Maximum angular alignment range of detector – – ±4.5 Deg Optical Wavelength – 850 – nm Operating Temperature – -20 +55 °C Operating Temperature -4 – +131 °F Storage Temperature -40 – +55 °C Storage Temperature -40 – +185 °F Relative Humidity (non-condensing) – – 93 %RH IP Rating – IP40 – IP Fire & Fault Relays (VFCO) – Contact voltage – – 30 V DC Fire & Fault Relays (VFCO) – Contact current – – 1 A Cable Gauge 22 – 16 AWG Housing Flammability Rating – UL94 V0 – – Detector Dimension 115W x 190H x 130D (mm) ; Weight – 0.7 Kg Reflector 100W x 100H x 10D (mm) ; Weight – 0.1 Kg Ordering Information
Model Description RE-401BD – 50m Reflective optical Beam Smoke Detector – 50m RE-401BD -100m Reflective optical Beam Smoke Detector – 100m RE-401BD -LRK Long Range kit. (3 Reflectors) RE-401BD -TF Test Filters
