EN3 cord mounts with new strain relief EN3 right angle panel mounts now available from Clarke & Severn Electronics . EN3 connectors are ideal for harsh environment GPS and data acquisition applications. Features of the EN3 connectors include an IP-68 NEMA 250 rating for this series, meaning that can stand up against the elements. The integrated o-ring and gasket seal design of the EN3 connectors results in easy weathertight installations in either factories or field work situations. Up to eighteen connections can be made using these connectors in a variety of fashions, meeting all specific GPS/ data acquisition connection needs.