Delphi's 1.5 and 2.8 mm Block-sealed Terminal Systems (BTS) are complete, high-performance connection systems including terminal, seal, and connector. BTS brings to the market a creative layered-seal concept for connectors, utilizing two independent sealing layers in a patented process that offers advantages over traditional single-piece block-sealed tool technology. This innovative layered-seal technology allows the connector to engage/disengage up to four times and still retain sealing performance.The BTS tangless terminal is an innovative clean body, two-piece design (base part with steel sleeve). It provides higher electrical performance including higher levels of temperature- and vibration-resistance. The terminal allows a broader range of cable sizes over competitive offerings.