Fike 20-1740


Cluster Speaker, 3 Horns, 1 Strobe, Fire Red Strobe Plate, Wheelock

Availability: Please Call for Availability

  • Factory New
Brand: Fike Part #: 141652 Categories: , Manufacturer Part #: 20-1740Secondary Part #: STH-3R24MCCH-FR


The Wheelock STH cluster speaker with RSS multi-candela strobe is designed for indoor ceiling mounting in high ambient noise environments. It is available with 2, 3, or 4 speakers for wide area coverage. The cluster speaker strobe is supplied with STH-15SR (UL1480 Listed) horns and one RSS-24MCCH (UL1971 Listed) ceiling strobe mounted to a NEMA 1 steel enclosure. The strobe is synchronizable. The STH cluster speaker with MCCH strobe comes fully assembled.



Fike Corporation





Unit of Measurement

EA (Each)

Production Status



  • STH-15SR Speakers are UL Standard 1480 Listed.
  • RSS-24MCCH Strobes are UL Standard 1971 Listed
  • Compliant with ADA, OSHA 1910.165, ANSI 117.1, NFPA 72, NFPA 101, and IFC
  • Cluster and Strobe wiring can be monitored for integrity by the Control Panel
  • Cluster Speaker Strobes come fully assembled
  • High efficiency unit for fire life safety and/or general communication announcing/notification
  • Provides high-intelligibility voice reproduction and high intensity visual alerting for emergency life safety applications, alarm and protective signaling
  • Speakers and Strobes are prefabricated to a 10” x 10” x 6” NEMA 1 steel enclosure for indoor use.
  • Mounts to ceiling
  • Only 1 pair of wires needed for audio connections
  • Strobes are connected to the NAC Strobe Circuit and are selectable 115 or 177 cd
  • Each individual STH-15SR horn is capable of delivering up to 102 dB at 15 watts at 10 feet
  • Omni-direction
  • Conduit knockouts for ½” or ¾” coupling
  • Labor Saving

STH Cluster speakers with one RSS strobe


Eaton - Data Sheet