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  GE Security GEC-521NCSXT Photoelectric 2-Wire Smoke Detector with CleanMe Heat Sensor and Sounder

GE Security GEC-521NCSXT Photoelectric 2-Wire Smoke Detector with CleanMe Heat Sensor and Sounder


Our Price : $36.99

Product Code: GEC-521NCSXT


The 521 Series continually monitor their own sensitivity and operational status, and provide a visual and remote trouble condition if they drift out of the sensitivity range or fail internal diagnostics. This meets NFPA 72 field sensitivity testing requirements without the need for external meters. The 521 has a unique feature enabling it to send a signal (CleanMe) to the ESL 505 module (sold separately) when it has drifted outside of its UL Listed sensitivity range or has failed its internal diagnostics test.

The 505 is an interface module that will signal a 24V panel via relays when the 521 is dirty. Several 12V and 24V control panels have the CleanMe software built in, eliminating the need for the 505 module. When CleanMe is not desired, simply leave the switch on the 521 off and it will work as a normal two wire detector. CleanMe allows the installer time to schedule a service call and avoid a false alarm.

Time between cleaning detectors is dramatically increased because of the 521's built-in drift compensation. This feature, usually only available in analog systems, allows the detector to automatically adjust its sensitivity over time as it becomes dirty, increasing the life of the detector.

And when the 521 has told you that cleaning is necessary, it's literally a snap with ESL's patented field replaceable optical chamber.



Dip switch 1 "on": 6 5-33VDC, polarity sensitive
Dip switch 1 "off": 8 5- 33VDC, polarity sensitive
Maximum ripple (pk to pk): 10% (Vp - p)
Typical average standby current (24V): 70?A
Typical alarm current (24V): up to 60mA max (if not limited by control panel)
Alarm Contacts: 500mA@36VDC (resistive)
Aux Relay contacts: 1A@ 30VDC
Sensitivity (photoelectric): 3 1% + 0 50-1 00%
Operating temperature: 32F to 100F (0 to 37C)
Operating humidity range: 0 to 95% Non-condensing
RFI Immunity: 20V/m minimum; 0-1000MHz
Field wiring size: 12-24 AWG

Heat detector specifications:

Rate of rise: 15F/min and >105F (8 3C/min, > 40 6C)
Fixed: 135F (57C)

UL two-wire compatibility identifier:

Dip switch 1 "on": S09A
Dip switch 1 "off": S10A, S11A
Drift compensation adjustment: 1 0%/ft max
Reset time: 1 second minimum

Detector head dimensions:

Diameter: 5" (12cm)
Height: 2" (5cm)

Mounting dimensions:

Diameter: 4 75" (12 5cm)
Height: 0 3" (0 8cm)
Color: White head and base
Detector packaging: 10 detectors per carton
Listings: UL, ULC, CSFM
  • CleanMe remote maintenance reporting reduces false alarms
  • Smart dual fixed/rate of rise heat works with photo chamber to catch fires faster
  • Built-in drift compensation reduces false alarms
  • Field replaceable optical chamber makes servicing a snap
  • Small, low profile design blends in with any environment

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