Fire Lite 5351RBAUS Intelligent Rate-of-Rise & Fixed Temperature Heat Sensor – Addressable Heat Detector

The Fire Lite 5351RBAUS is an intelligent programmable temperature sensor designed to provide reliable thermal fire detection for compatible Notifier addressable fire alarm systems. Utilising a state-of-the-art thermistor sensing circuit, the detector delivers fast and accurate response to changes in temperature, making it suitable for a wide range of commercial and industrial fire protection applications.

The 5351RBAUS is configured for rate-of-rise and fixed temperature detection, responding to rapid temperature increases exceeding approximately 8.3°C per minute (15°F per minute) while also providing a 57°C (135°F) fixed temperature alarm threshold for dependable fire detection. Detector operation and programming are managed through the compatible Fire Alarm Control Panel (FACP), allowing flexible system configuration without requiring physical adjustments to the detector.

Designed for intelligent addressable fire alarm systems, the 5351RBAUS operates over a 15–32 VDC signalling loop and features rotary address switches for simple device addressing. Dual LEDs provide 360° visual indication of detector status and alarm conditions, making activated devices easy to identify during emergency events.

Ideal for environments where smoke detectors may not be suitable due to dust, steam, or airborne contaminants, the 5351RBAUS provides dependable heat detection for a broad range of building applications.

Key Features:

• Intelligent addressable rate-of-rise and fixed temperature heat sensor
• State-of-the-art thermistor sensing technology
• Rate-of-rise detection exceeding approximately 8.3°C/min (15°F/min)
• Fixed temperature alarm threshold of 57°C (135°F)
• Field programmable through compatible Fire Lite Fire Alarm Control Panels
• 15–32 VDC operating voltage
• Rotary address switches for device addressing
• Dual LEDs with 360° alarm visibility
• Low standby current for efficient operation
• Suitable for open-area fire detection applications

Typical Applications:

• Commercial office buildings
• Warehouses and distribution centres
• Plant and equipment rooms
• Industrial facilities
• Hotels and accommodation
• Schools and educational facilities
• Areas where smoke detection is unsuitable due to environmental conditions

The Fire Lite 5351RBAUS Intelligent Rate-of-Rise & Fixed Temperature Heat Sensor combines advanced thermistor sensing technology with intelligent addressable communication to deliver dependable heat detection and flexible system integration for modern fire alarm installations.