TYPE CT TEMPERATURE-OVERLOAD RELAY
Power-Line Carrier Communication - Transmitter Equipment Model 4CT71A1*04M1A
Power Line Carrier - Dual Channel Transfer Trip Relaying Equipment - Transmitter Terminal 4CT51B1F04M1A, Option 00X12 - Receiver Terminal 4CR51B1F04R7N, Option 00X13
Type CT Temperature-Overload Relay