The 3NJ6920-3DE00 is a CT busbar assembly for mounting a single bushing current transformer onto a SENTRON 3NJ6 (NH00) in-line switch disconnector with fuses. Features a 14 mm bushing opening — specified for CTs with smaller window diameters where a defined aperture is required.

Modular CT Mounting

This single-position busbar with 14 mm bushing opening provides a precisely dimensioned conductor path for CTs requiring defined primary conductor positioning. Ideal for single-phase monitoring with CTs that specify a 14 mm cable or busbar opening. Snaps into the 3NJ6 disconnector and can be retrofitted without disconnecting the main circuit.

Key Parameters

Retrofittable Design

All 3NJ6920 series busbar assemblies can be retrofitted at any time — no need to disconnect the main circuit or remove the switch disconnector from the panel. The plug-in interface ensures quick installation without tools, letting panel builders add metering capability as requirements evolve.