A05-0205 Datasheet, PDF (1/2 Pages) Systemsensor advanced ideas. – 400 Series Plug-In Thermal Detectors

400 Series Plug-In
Thermal Detectors
System Sensor 400 Series plug-in thermal detectors
meet the performance criteria designated by
Underwriters Laboratories.
Features
• Low standby current
• Two visible LEDs “blink” in standby and provide a 360° field
viewing angle
• Wide variety of mounting bases with built-in shorting spring
• Detector head plugs easily into base
• Built-in test switch
• Field sensitivity metering of detector to meet the requirements
of NFPA 72
• Built-in tamper-resistant feature
• SEMS screws for easy wiring
• Optional recessed mounting
The 5451 thermal detector meets the needs for applications
where rapid response is vital and rapid temperature increases would
only be caused by a fire emergency.
This detector contains a unique dual thermistor heat sensing circuit
that provides maximum performance and solid-state reliability. It
initiates an alarm in response to both rapid rate-of-rise conditions
(increases in excess of 15°F per minute) and fixed heat (135°F). This
enables the heat detector to communicate an alarm to the central
control panel prior to reaching its fixed set point for high rates of
rise, providing a timely response to both rapid and slow temperature
increases.
Additional key features include a recessed mounting option, a variety
of mounting bases, and a full line of optional accessories.
Agency Listings
S2101
OB3AO.AY
7270-1653:104