3UG4.1 line monitoring relay
6.7 3UG4617 / 3UG4618 line monitoring relays
3UG4 / 3RR2 monitoring relays
160 Manual, 05/2016, NEB927043002000/RS-AC/004
Function diagrams 3UG4617 / 3UG4618
Correct phase sequence L1-L2-L3
Memory = no
Incorrect phase sequence L3-L2-L1
Memory = no
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