Key Features :
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Overhead control and feeder protection relay.
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With current, voltage, and frequency functions.
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Auxiliary power supply: 24–230 Vdc/ac, 48–230 Vdc/ac, or 24–48 Vdc (depending on model).
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4 current channels (/1 and /5 CTs) and 6 voltage channels (capacitive and resistive LPVTs).
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Metal housing with high EMC and wide operating temperature range.
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Protection against decoupling, load shedding, and Loss of Main (ROCOF-based).
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Circuit breaker (52) and recloser (79) control and signaling.
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Front keypad with 7 navigation keys, 6 hotkeys, configurable LEDs (depending on model).
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Arc Flash Detection (4 AFD inputs + 4 high-speed outputs, depending on model).
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SOTF function for fast fault clearing on manual CB closing.
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Communication: Front micro-USB; Rear serial: Modbus RTU, DNP3.0 Serial, IEC60870-5-103; Rear Ethernet (RJ45/FO-LC): Modbus TCP/IP, DNP3.0 TCP/IP, IEC60870-5-104, IEC61850, SNTP, Web Server.
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Optional Wi-Fi and IRIG-B synchronization.
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Alarms panel available.
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Multiple configurable I/O combinations depending on model.
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Load Data Profiling (LDP): 2160 records, circular, 1–60 min sampling interval.



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Non-volatile RAM stores up to 3072 events and DFR with internal RTC, COMTRADE format (pre/post-fault configurable).
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Oscillography: Each DFR record 10 analogue + up to 96 digital channels, downloadable via SICom software.


