Interlogix 541NCSXT


Photoelectric 4-Wire Smoke Detector w/ Heat Sensor, Sounder, 12/24V DC

8 in stock | Additional Units Available + Express Shipping Options

  • Material Obsolete
Brand: Interlogix Part #: 5273 Categories: , , Manufacturer Part #: 541NCSXT Tags: ,


Weight 0.40 lbs
Dimensions 5.50 × 5.50 × 2.00 in




Detectable Medium


Detection Method

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Thermal Rating


Production Status

Product Notes

Alternative: 4WTA-B


  • Remote maintenance (CleanMe®) reporting and built-in drift compensation reduces false alarms
  • Self-diagnostics meets NFPA 72 sensitivity testing requirements without the need for external meters
  • Field-replaceable optical chamber makes service fast and simple
  • Large SEMS screw terminals accept 12-18 AWG wire
  • Small, low profile design blends with any environment
  • Optional auxiliary functions include:
    • Integrated sounder with optional interconnection
    • Auxiliary relay is NFPA 72 listed for applications such as elevator recall
    • Fire system isolated heat detector, integrated with non-latching single station smoke detector
    • Integrated fixed/ROR heat detector
    • Adaptor plate enables replacing legacy 400 Series with 500N Series smoke detectors


Data Sheet: Smoke Detectors with Auxiliary Functions, 500N Series
Installation Sheet: ESL 500N Series Smoke Detector
Compatibility Index: ESL Smoke Detector