https://www.sparksdirect.co.uk/lewden-63a-5-pin-3p-n-e-ip67-rated-surface-mounted-angled-round-socket-400v-with-red-lid-lewden-509346
Lewden 63A 5 Pin (3P+N+E) IP67 rated Surface Mounted Angled Round Socket 400V with Red Lid, Lewden 509346