DIRECTIONAL EARTH-FAULT RELAY Rated frequency 60Hz Directional earth fault relay for isolated neutral, resistively earthed and/or inductively earthed networks Assembly boxes SPAS-ZK 7 or SPAS-ZK 8 Assembly boxes not included in price Auxiliary supply voltage 17-40 V d.c
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Parts & Services >> Medium Voltage Products and Systems >> Distribution Automation >> Feeder Protection and Control >> SPAS J3