A high-performance Lexan EXL co-polymer resin from SABIC addresses the fast-moving trend toward miniaturisation of PV (photovoltaic) connectors and junction boxes. The enhanced electrical and flame-retardant performance of the resin grade enables designers to create thin-wall parts, move conductors closer together and integrate junction box systems, claims the company. Another source of the demand for miniaturisation is the increased use in homes where flatter, unobtrusive designs are desired. The 9330S grade resin surpasses traditional materials in its electrical performance; demonstrated by a comparative tracking index (CTI) Underwriter's Laboratory (UL) standard with PLC-2 rating. Compliance with this standard means the co-polymer resists arcing in the presence of moisture and salts and, therefore, can be used in parts that are placed closer together (i.e. 4mm instead of 12mm under Class 3).
