Rittal OM Adapter, For Use With: 5/10 mm Cross Section H Busbars, 60 mm Center-to-Center Spacing Bar System, 690 VAC, 25 A, 3-Pole, 3-Phase, 105 deg C Operating Temperature, 12 AWG Wire Size, 60 mm Center-to-Center Spacing, 1-Number of Support Rails, Polyamide (PA 6.6), Pale Gray, 5.1 in L x 1.8 in W x 8.2 in H,