ABB NALF Series - Improper installation of cable connections

16 NAL/NALF – Mounting and operation manual
8-9. Tighten the holdfast screw rather firmly, see Fig. 47-48.
Verify the correct operation of auxiliary switch.
10. Earthing switch in open position, see Fig. 49.
11. Earthing switch in closed position, see Fig. 50.
Fig. 47-50 Mounting the auxiliary switch for E-EB earthing switch
Fig. 47
Fig. 49
Fig. 48
Fig. 50