Description

True RMS Measurement with SPARC¹ and DCOI2 Algorithm
Fundamental Signal Detection3
Real Time Display of Earth Fault in (%)
6 Selectable IDMT Graphs + DTL
Fault / lo-set & hi-set Trip LED Indication
Fault Start Event Recording & LED Indication + Output4
Pre-Alarm LED Indication + Output4
Trip Event Memory (non-volatile 7 previous records)
Fault Start Event Memory (non-volatile 4 previous records)
Selectable Frequency (50/60 Hz)
Programmable Relay Output Contact for K2
Last Trip Elapsed Time (up to 99days)
Software Lock to Prevent Unauthorized Setting
Complies with:
IEC-60255-26/27; BS EN 50121-5 Standards
ANSI Code: 50N, 51N
External Plug-in Module for :-
A-01s/A-01sp (RS-485 MODBUS RTU) isolated type