Tower and obstruction lighting control relays made by Littelfuse remotely monitor the operation of one or more beacons. When relays detect drops in current that indicate a lamp has malfunctioned, they light LED indicators to show operators that maintenance is required. A time delay minimizes nuisance alarms. We offer relays for use with steady-burning or flashing beacons.
Ac input voltages of 120 V ac or 230 V ac
Output load ratings up to 5 kW at 230 V ac
Fixed trip delays up to 10 s
Operate at temperatures up to +65 °C
FAA- and FCC-compliant versions available
Available with encapsulated circuitry
Available with SPDT output circuitry or normally open (Form A) contacts