Figure 1. Knock-Out Dimension Diagram 8 (Models: 2257, 2313, 4208, 4250, and 4296) Model Dimensions mm (in) D D1 D2 D3 W W1 φd4 φd5 2257, 2313 4208, 4250, 4296 160 (6.30) 208.4 (8.20) 166.3 (6.55) 75.3 (2.96) 92.8 (3.65) 27.5 (1.08) 35 (1.38) 62 (2.44)