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Heat Detectors

5251RB Intelligent Rate-of-Rise Thermal Detector

5251RB intelligent rate-of-rise thermal detectors use an innovative thermistor sensing circuit to produce 135 °F fixed and rate-of-rise thermal detection in low-profile packages.

5251RB intelligent rate-of-rise thermal detectors use innovative thermistor sensing circuits to produce 135 °F fixed and rate-of-rise thermal detection in a low-profile package. They are intelligent plug-in smoke detectors with integral communication that provides the location for the alarm and notifies for selective maintenance. These thermal detectors provide cost-effective, intelligent property protection in a variety of applications.

Features & Benefits:
  • Sleek, low-profile design
  • Analog communications
  • Low standby current
  • Rotary address switches
  • Superior EMI protection
  • Dual LEDs for 360° visibility
Certifications:
  • UL Listed
  • ULC Listed
  • FM Approved
  • MSFM Approved
  • CSFM

Others

  • Fixed Temperature Setpoint
    • 135 degree Fahrenheit
    • 57 degree Celsius
  • Standby Current
    • 300?A at 24 voltage direct current
  • Rate-of-Rise Temperature
    • 15
  • Maximum Operating Humidity
    • 93 Percentage
  • Minimum Operating Humidity
    • 10 Percentage
  • Trigger Temperature
    • 57 degree Celsius

Others

  • Fixed Temperature Setpoint
    • 135 degree Fahrenheit
    • 57 degree Celsius
  • Standby Current
    • 300?A at 24 voltage direct current
  • Rate-of-Rise Temperature
    • 15
  • Maximum Operating Humidity
    • 93 Percentage
  • Minimum Operating Humidity
    • 10 Percentage
  • Trigger Temperature
    • 57 degree Celsius
  • Fixed Temperature Setpoint : 135 degree Fahrenheit|57 degree Celsius
  • Standby Current : 300?A at 24 voltage direct current
  • Rate-of-Rise Temperature : 15
  • Maximum Operating Humidity : 93 Percentage
  • Minimum Operating Humidity : 10 Percentage
  • Trigger Temperature : 57 degree Celsius
Image
SKU
Description
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5251RB
Photoelectric Smoke Detector, 200 Series, Rate of Rise