Differential protection relay
max. 0.03 A | Delta D4-S
IME
4 Module
Instantaneous (t = 0) at IΔn 30mA
Selectable set point 30mA...30A (19 ranges)
Instantaneous display as percentage of lΔn
Filter for harmonics, field-selectable
Alarm + pre-alarm or alarm with 2 SPDT contact
Field-selectable negative or positive security (fail safe)
Automatic permanent test
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