Residual current devices protect people from indirect contact by cutting off the power supply when they detect a current leak to earth. In installations with photovoltaic systems and charging points, there are nuances that do not apply to a conventional home.<\/p>\n
For the protection of people, 30 mA<\/strong>. The 300 mA versions protect the installation against fire, not people, and are used at the main distribution board or on circuits where there is no risk of direct contact.<\/p>\n Because the vehicle\u2019s alternator can inject fault direct current<\/strong>, and that component saturates the core of a conventional AC-type residual current device, rendering it unable to detect a subsequent fault.<\/p>\n The ITC-BT-52 therefore requires protection against direct current: a Type B residual current device, or a Type A device with direct current detection integrated into the charging unit itself. See the protective enclosures for charging points<\/a>.<\/p>","link":"https:\/\/fvcomponentes.com\/en\/categoria-producto\/material-electrico\/interruptores-diferenciales\/","name":"Differential Switches","slug":"residual-current-circuit-breakers","taxonomy":"product_cat","parent":410,"meta":[],"menu_order":96,"_links":{"self":[{"href":"https:\/\/fvcomponentes.com\/en\/wp-json\/wp\/v2\/product_cat\/989","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fvcomponentes.com\/en\/wp-json\/wp\/v2\/product_cat"}],"about":[{"href":"https:\/\/fvcomponentes.com\/en\/wp-json\/wp\/v2\/taxonomies\/product_cat"}],"up":[{"embeddable":true,"href":"https:\/\/fvcomponentes.com\/en\/wp-json\/wp\/v2\/product_cat\/410"}],"wp:post_type":[{"href":"https:\/\/fvcomponentes.com\/en\/wp-json\/wp\/v2\/product?product_cat=989"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Why does a charging point need a special residual current device?<\/h2>\n