Communication Function
Input / Output Function
Harmonic Analysis Function
Events Recording
ZSI
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√
√
√
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2DI & 2DO or 4DO • Up to 31 st order • THDi • THDv
Zone Selective Interlocking
Modbus RTU
• Operations counter • Up to10 switching records • Up to 10 trip records • Up to 10 alarm histories
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