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  GE Security GEC-521B10PKG Photoelectric 2-Wire Smoke Detector

GE Security GEC-521B10PKG Photoelectric 2-Wire Smoke Detector


Our Price : $279.46

Product Code: GEC-521B10PKG


The 500 series self-diagnostic, 2-wire smoke detectors are conventional direct-wire detectors with analog features including drift compensation, multi-criteria detection, and remote maintenance/trouble reporting (CleanMe). The detectors continually monitor their own sensitivity and operational status and provide a visual and remote trouble condition if they drift out of calibration range or fail internal diagnostics.


Model: 521B10PKG
2-wire Voltage Dip switch 1 "on": 6.5-33VDC, polarity sensitive
2-wire Voltage Dip switch 1 "off": 8.5- 33VDC, polarity sensitive
4-wire Voltage: 8.5- 33VDC
Maximum ripple (pk to pk): 10% (V p - p )
Typical average standby current (24V): 70 A
Typical alarm current (6/12/24V) 2-wire: up to 60mA max (if not limited by control panel)
Typical alarm current (6/12/24V) 4-wire: 15mA
Alarm Contacts: 500mA @ 36VDC (resistive)
Aux. Relay contacts: 1A @ 30VDC (resistive)
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 (16-22 recommended)
Heat detector specifications Rate of rise: 15F/min and >105F (8.3C/min, > 40.6C)
Heat detector specifications Fixed: 135F (57C)
UL two-wire compatibility identifier Dip switch 1 "on": S09A
UL two-wire compatibility identifier Dip switch 1 "off": S10A, S11A
Drift compensation adjustment: 1.0%/ft. max
Reset time: 1 second minimum
Detector head dimensions Diameter: 5" (127mm)
Detector head dimensions Height: 2" (51mm)
Mounting dimensions Diameter: 4.75" (125mm)
Mounting dimensions Height: 0.3" (8mm)
Color: White head and base
Detector packaging: 10 detectors per carton
Listings: UL, CSFM, MEA (2-wire only)
  • Remote maintenance reporting (CleanMe) reduces false alarms
  • Built-in drift compensation reduces false alarms
  • Field replaceable optical chamber makes servicing easy
  • Small, low-profile design blends in with any environment
  • Meets NFPA 72 field sensitivity testing requirements without the need for external meters

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