Air Products & Controls SL-2000-N

Duct Smoke Detector, 4-Wire, Ionization Type

  • Factory New
  • Material Obsolete
Brand: Air Products & Controls Part #: 1560 Categories: , Manufacturer Part #: SL-2000-N


Weight 2.50 lbs
Dimensions 13.50 × 4.50 × 2.25 in

Apollo Fire Detectors


Air Products & Controls




Duct Detector

Detectable Medium


Detection Method


Production Status



Product Notes

Replacement: SL-2000-P


  • Low-Flow Technology: Both Ionization and Photoelectric models listed for velocities between 100-400 ft./min
  • Both models listed for high-temperature applications
  • Operating voltages: 230VAC, 115VAC, 24VAC, 24VDC
  • Interconnect up to 30 units for common functions
  • Patented “No-Tools Required” front or rear loading and removing sampling tubes/exhaust tubes
  • Patented “Test Port Valve” allows for aerosol smoke testing without cover removal
  • Clear cover fitted with four captive “No-Tools Required” thumbscrews
  • Instantaneous cover removal trouble indication
  • Staggered terminal blocks for easier wiring
  • Flashing LED on detector head indicates normal operation
  • Magnet test capability (magnet included)
  • More wiring space than competitive models
  • Footprint allows easy retrofit in many applications without additional drilling
  • Over 15 remote accessories available
  • Duct wall gaskets on back of enclosure are pre-installed
  • Compatible with the WP-2000 weatherproof enclosure
  • Reset switch is also an alarm test switch – competitive models require a magnet or cover removal to test at unit
  • Unit includes a green pilot and red alarm visual indicators
  • External mounting tabs do not require cover removal to install
  • Colored cover gasket indicates proper cover seal
  • UL, CUL, CSFM, and MEA Listed
  • Compact, lightweight size means easy handling, lower shipping costs
  • Two sets of 10A form “C” alarm contacts
  • One set of 2A form “A” alarm contacts
  • One set of 10A form “C” trouble contacts
  • Large terminal connection screws
  • Standard interchangeable “plug-in” UL268 photoelectric or ionization heads
  • Advanced detector head design yields internal dust filtering
  • No additional screens or filters to clean
  • Compatible with building automation and fire alarm systems
  • Ionization and Photoelectric versions available
  • Complete wiring details permanently attached to unit


SL-2000 Series Duct Smoke Detectors
Air Products and Controls – Data Sheet
SL-2000 Series Duct Smoke Detectors
Air Products and Controls – Manual

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