Simplex 4098-9614

Electronic Heat Detector, Fixed Temperature, 200° F (93° C)


Accurate Electronic Design. Simplex® electronic heat detectors use a fast response, thermistor based design to provide temperature sensing that quickly, accurately, and consistently identifies when fixed temperatures are exceeded. The fixed temperature sensing thermistor readily tracks the local ambient temperature. This eliminates the time required to melt a lead pellet or heat a bimetallic element as occurs in mechanical heat detector designs and provides the required heat detection for most applications.

Datasheet: 4098-9614

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Weight .50 lbs
Dimensions 5 × 5 × 5 in

Heat Sensing Element

Fixed Temperature

Operating Temperature Range

32°F – 150°F

Operating Voltage

15 – 32 VDC

Standards & Approvals

CSFM, FM Approved, MEA, UL, ULC

Thermal Rating



Accurate and reliable heat detection for protection of property

UL listed to Standard 521 as a rate compensated heat detector

Fixed temperature operation is suitable for most applications:

  • Thermistor based design is inherently rate compensated due to minimal thermal lag
  • Available for 135° F (57° C) or 200° F (93° C)
  • UL and ULC spacing distance is 70 ft (21.3 m)

Available with rate-of-rise temperature detection:

  • Dual thermistor rate-of-rise operation
  • For use where anticipated ambient temperature changes are less than 6° F/minute (3.33° C/minute)
  • UL and ULC spacing distance is 70 ft (21.3 m)

Epoxy encapsulated electronic design provides:

  • Easily tested, self-restoring operation with repeatable accuracy
  • Alarm indicating LED located on detector
  • Current limited alarm that is compatible with two-wire initiating device circuits (IDCs)
  • Designed for EMI compatibility

Optional remote alarm indicating LED Available base options:

  • Bases for 2-wire or 4-wire operation
  • Auxiliary relay output
  • Remote alarm indicating LED output

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