Hubbell IN330MS1 replacement interior for a Hubbell HBL330PS1W male Insulgrip pin and sleeve plug (Style 1). Rated 600VAC/250VDC 30A, 2-pole 3-wire. Rejuvenate your old plug at a fraction of the cost. Please make sure that your plug is part number HBL330PS1W. The "S1" stands for "Style 1"; these will only fit Style 1 so if your part number ends in S2, this will not fit.
