MAC Block™ Splice & Tap Connectors

MAC Block Mechanical splice and tap connectors from ILSCO are designed for use with building code and flex conductor. Available in the following colors: purple, black, white, and green; the connectors accept up to four conductors of varying sizes per port.  They are certified for power and grounding applications.

MAC Block splice and tap connectors can be installed anywhere a twist-on wire connector can, with one exception – MAC Block can be used to retrofit aluminum to copper connections. Runs cooler with a high level of retention versus leading twist-ons.  For more information visit