… to or in electrical circuits (for example, switches, relays, fuses, surge suppressors, plugs, sockets, …
Explanatory notes
… to or in electrical circuits (for example, switches, relays, fuses, surge suppressors, plugs, sockets, … for protecting electrical circuits ‑ Relays : 8536.41 ‑ ‑ For a voltage not exceeding 60 V …