Line side barrier kit physically blocks access to the energized line-side terminals, reducing the risk of electrical shock or arc flash during maintenance or inspection. The field instable line side barrier kits are required to meet the code for service entrance applications. Barrier kits prevent accidental contact with line side, un-insullated, ungrounded or service terminal live parts. Line Side Barriers for General Duty safety switch which is rated for 400A, 600A and 800A (240V).