Industrial Moldovan Case Circuit Breaker (6) Part Number: NSX 400F Adjustable gauge from 160 to 400 amps Micrologic Control Unit (old generation): Instead of the green screen of version 4.3, there is a white/gray adjustment block equipped with blue rotary knobs to manually adjust the intensity ($Io, $$Ir) and the short circuit threshold ($$Isd). Different block (Vigi): At the very bottom, there is a dial to adjust the sensitivity to ground leaves ($\Delta n(A)$ ranking from 0.3 to 30 Amps) and two white push buttons T (Test) and R (Reset).