Switchcraft ip68 weathertight connectors switchcraft en3p4m weather tight panel plug with 4 poles from the switchcraft en3 series ideally suited for use in the marine process control and medical electronics industries a double seal is created by moulding an o ring onto the cord housing and a gasket onto the panel housing a sealing cap is also available which suits both panel plugs and sockets switchcraft en3p4m 4 pole weathertight panel plug