Abstract: A seal (10) for use with an electrical connector includes an array of sealing units (20) each including a funnel-shaped section (22), an annular recess (24), an annular projection (26), and a box shaped recess (28). Adjacent to the sealing units are respective relaxation cores (30) for allowing the seal material to flow and fill in the relaxation cores thereby relieving the sealing units of stress and preventing tearing or cutting of the seal as the electrical contact (40) is inserted through the sealing unit (20). An interface angle (22c) is advantageously formed in a steep fashion so that the corners of the electrical contact (40) do not cut or tear the seal material.