A pluggable bushing current transformer for SENTRON 3NJ62/63 NH1 in-line switch disconnectors with fuses. The 250/5 A ratio with Class 1 accuracy and 2.5 VA burden provides reliable current measurement for standard monitoring and control in 250 A distribution circuits.

NH1 Pluggable CT Design

Designed as a direct plug-in accessory for NH1 fuse-type switch disconnectors. Accepts cables up to 21 mm in diameter through the bushing opening. The compact 44×65×30 mm form factor fits within the disconnector footprint with no additional panel space required. No tools needed for installation or replacement.

Key Parameters

Application

Used in NH1 3NJ62/63 switch disconnector assemblies for current measurement and monitoring in 250 A low-voltage distribution boards. The 5 A secondary is the standard interface for panel ammeters, transducers, and protection relays across industrial and commercial installations.