5 Wire Polaris 500 MCM - 4 AWG Insulated Multi-Cable Connector Block, Either Side Wire Entry Polaris Insul-Tap Connectors have wire entry ports on both sides of the connector to allow for access from either side. Eliminates the need for cover and taping. Insulated with high-dielectric strength plastisol. Molded for precise fit and supplied with removable plugs to close the entry port not being utilized. Abrasion and chemical resistant. UV resistant. Will not support combustion. AL9CU. Cold temperature rated to -45 degrees C, rated 600V, 90 degrees C. Dual rated for use with copper and/or aluminum cables. Not recommended for fine-stranded, flexible wire.