... , malleable iron, stainless steel,carbon steel 2) Ingress protection: IP67 x DIN VDE 0470 TEIL 1/11.92 3) Conduit ... EN60529:1992, IEC529:1989 Aluminium alloy-die casting:Way/terminal box-3/4":1) Internal dimensions: 57.5 x 23mm ... ", 11/2", and 2" (with different dimensions)Way/through box-3/4":1) Internal dimensions: 57.5 x 23mm deep2 ... 1", 11/4", 11/2", and 2" (with different dimensions) electrical Box