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The FB120A and FB230A are used to monitor the operation of one two-lamp incandescent beacon and one beacon flasher (or auxiliary module).

SSAC FB120A/FB230A Flasher & Incandescent Beacon Alarm Relay Distributors

FB120A/FB230A Series

The flasher and lamps are monitored by sensing the flow of current in the circuit. If the lamp(s) or the flasher fail to operate properly, a solid-state output and an isolated SPDT relay energize.

When connected to a site monitoring system, this unit provides the remote beacon monitoring protection required by the FAA/FCC. On a multiple beacon structure, one unit is required for each two-lamp incandescent beacon (one unit per beacon for LED beacons).

If you are looking for SSAC Flashers, please call us on (800) 894 - 0412 or email us at we will do our best to help you find the SymCom FB120A incandescent beacon alarm relay that you are looking for at the most competitive prices possible. If you are searching for SSAC FB230A incandescent beacon alarm relays technical information (data-sheets) please use the datasheets or product selection guide page links.


If one lamp in an incandescent beacon fails, the relay and solid-state lamp failure outputs energize after 10s. If the flasher fails in the ON or OFF condition, the relay and the solid-state flasher failure output energizes after 6s. If both failures occur, all three outputs energize after their trip delays.

Note: If both incandescent lamps fail, all three outputs will energize. The relay and solid-state flasher failure output energizes after 6s, and the solid-state lamp failure output energizes after 10s.


  • Senses failed flashing incandescent beacon lamps & beacon flashers
  • Toroidal current sensing
  • One isolated, 5A, SPDT alarm output
  • Two 1A, solid-state line voltage alarm outputs
  • Trip delays prevent nuisance alarms
Input Lamp Type Part Number
120VAC Incandescent Beacon FB120A
230VAC Incandescent Beacon FB230A

Our industrial factory automation supplies distributors warehouse in Boise, Idaho USA stocks some SymCom products enabling us to further assist you in finding the correct SSAC FB120A flashers in the USA, Canada and Mexico.

Whether we have ABB FB230A flashers in stock in Boise, Idaho USA or need to ship direct from Littelfuse to any USA cities; Clearwater Tech can get SSAC FB120A flasher to you fast and save you some money!

It will be very helpful if you have the ABB FB230A flasher part numbers ready, then our sales representatives can provide you with a pricing and availability quote for SymCom FB230A incandescent beacon alarm relay that you are looking for in seconds.

If you do not have the part numbers for SSAC FB120A incandescent beacon alarm relays, our application engineers will be able to help you figure out the part numbers and get the price quote to you as soon as possible.

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