Electrical protection is integrated, not added on. The
Sitecharge ships with an RCD Type A plus DC 6 mA leakage detection, covering AC
residual currents and small DC faults in a single device. The plug itself is
rated IP67 within the IP55 enclosure, which keeps the connection point sealed
during the part of the cycle most exposed to weather and handling.

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. The result is reduced heat build-up at the contact points and
less 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.