Cut Sheet

© 2016 Littelfuse Protection Relays & Controls
Flashers and Tower Lighting Controls
Tower and Obstruction Lighting Controls
www.littelfuse.com/fa-fs
Rev: 1-A-062316
Specications
Wiring Diagram
FA / FS SERIES
Description
The FA/FS Series have proven their reliability through years of
use on communication towers, smoke stacks, cooling towers,
tall buildings, bridges and utility towers. The highest quality
components are encapsulated in a rugged plastic housing with
a molded-in heat transfer plate. The flash rate, ratio, and fail-
safe design meet FAA regulations. Zero voltage switching can
increase lamp life up to ten times. The FS155-30RF includes
superior RF filtering circuitry for use in high RF installations,
including AM hot towers.
Operation
FS Series - Flasher (OFF First)
FA Series - Auxiliary Modules
Upon application of input voltage, the T2 OFF time begins. At
the end of the OFF time, the T1 ON time begins and the load
energizes. At the end of T1, T2 begins and the load de-energizes.
This cycle repeats until voltage is removed.
Reset: Removing input voltage resets the output and the
sequence to T2.
Features & Benefits
FEATURES BENEFITS
Zero voltage switching Delivers up to 10 times longer lamp life
Encapsulated Protects against shock, vibration, and humidity
Metalized
mounting surface
Facilitates heat transfer in high current applications
Superior RF filtering
circuitry (RF models only)
Ideal for AM hot towers and other high
RF installations
High inrush capability
up to 200A
Will withstand the repetitive inrush current of
incandescent beacons
L1
L1 L1 N/L2N/L2
N/L2
L1 L2
(H)
(H)
FS Series
FA155
FA165
FA155-2
FA165-2
FA155-2
V = Voltage N = Neutral B = Beacon
DL = Dummy Load for Constant Line Loading
Rd = 3.3 KΩ @ 5W for 120VAC; 8.5 KΩ @ 5W for 230VAC
F = Flasher (FS155-30T, FS155-30RF, FS165-30T)
AX = Auxiliary Unit (FA155, FA155-2, FA165, FA156-2)
*(FS155 & FA155 models only)
*
Ordering Information
MODEL INPUT VOLTAGE WATTAGE INRUSH RATING DESCRIPTION
FA155 120VAC 2500W 200A Auxiliary unit to provide constant line loading
FA155-2 120VAC 2500W 200A
Auxiliary unit for synchronized operating of additional beacons. Synchronized flashing of
additional beacons on a 3 wire system
FA165 230VAC 5000W 200A Auxiliary unit to provide constant line loading
FA165-2 230VAC 5000W 200A
Auxiliary unit for synchronized operating of additional beacons. Synchronized flashing of
additional beacons on a 2 wire system
FS155-30RF 120VAC 2500W 200A For high RF interference locations including AM hot towers
FS155-30T 120VAC 2500W 200A Standard beacon flasher
FS165-30T 230VAC 5000W 200A Standard beacon flasher
If you don’t find the part you need, call us for a custom product 800-843-8848
FA155
FS165-30T