Current transformers for fuse rails for primary nominal currents from 100 A up to 600 A, secondary nominal current 5 A or 1 A, accuracy class 3.
Secondary connections in excess of 4 mm require jacks for direct mounting onto the contact rail of low voltage high performance fuses with contact knives integrated in the NH-fuse set, according to DIN 43620/1.
NH current transformers are fitted with 2 or 4 tip sockets and can be operated constantly under load.
Idling voltage at secondary primary nominal current 5 A approx. 3-6 V and a secondary nominal current 1 A approx. 13.25 V.
Available in 3 different sizes (NH 1, NH 2, NH 3).