With the energy saving design of an all LED intersection, the total current draw for the entire intersection can be under 5 Amps. Frequently the FTR switches less than 1 Ampere. An intermediate design of an FTR using a “serrated” gold diffused contact has been offered by Struthers-Dunn, to help prevent low current problems during the transition to LEDs.<br />
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The proven silver/palladium alloy contacts known for long-life when switching high current “Tungsten” ...This story is related to the following:Controls and ControllersSearch for suppliers of: Current Sensing Relays | Lighting Control Relays |