Electrical protection is integrated, not added on. The Sitecharge ships with an RCD Type A plus DC 6mA leakage detection, covering AC residual currents and small DC faults in a single device. The plug itself is rated IP67 within the IP55 enclosure, built as a one-piece housing with no screws or glue, which keeps the connection point sealed and structurally sound through the handling demands of a 63A installation.

Material choice does the rest. Contacts are 100% silvered copper, which avoids the resistance penalties of cheaper alloys, and the conductors use finely stranded copper for flexibility and resilience under tight bend radii. At 63A, these material decisions have a direct bearing on heat build-up at the contact points and mechanical fatigue over thousands of plug cycles. These are the details that determine how a charger holds up in year three rather than week one.