Series 1548 Overhead Faulted Circuit Indicators. (Model F) Standard Offering, reclose dead time of 150 msec. (loss of current greater than 150 msec.), 3 Amp minimum load current required for reset. (Factory Code H). (Trip/Inrush Logic Option A) Adaptive Trip requires 60 second continuous minimum load current, arming time less than 1/4 cycle fault current, loss of current within 60 second of fault current. (Trip/Current Option N) 100 Amp di/dt adaptive trip, Note 3 Amp minimum load required. (Reset Time-Delay Option C) 4 hour automatic with current reset override, 60 seconds after restoration of power. (Factory Code 3). (Indicator Option X) Temporary fault indication option - 4 Red, 1 Amber LEDs - standard for applications up to 69kV maximum. (Transmitter Phase Encoder Option N) No transmitter, - not available for T Indicator Options. (Factory Code A). (Temporary Fault Reset TIme Option 2) 8 hours.