Busbar Holder Insert 20x10 mm – SU1, SU2, SU3, SU4

This 20×10 mm busbar holder insert is designed for use with Daynight Electrical busbar termination systems (SU1, SU2, SU3, SU3-1, and SU4 models). The insert provides secure electrical contact and mechanical support for busbars in panel-building and industrial electrical installations. Ideal for electricians and panel builders working with standardised busbar systems.