Conventional sockets only comply with protection class IP55 when the hinged cover is closed. When adevice such as a high-pressure cleaner is plugged in, water can penetrate the socket. This newstandard has implemented changes to the Swiss plug system and plug connections in compliancewith the standard provide IP55 protection, i.e. protection against dust and water jets, even when thedevice is switched on.From a technical point of view, this protection is guaranteed by a seal on the socket and a sealing ringon the plug. With few exceptions, the IP55 connector system is compatible with existing IP20 plugsand sockets and vice versa. It needs to be kept in mind, that any products that have been testedaccording to SN SEV 1011 and IEC standards may only be manufactured or imported until 28.2.2022.