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2. NEMA connector - Wikipedia

   en.wikipedia.org/wiki/NEMA_connector

   The locking coupling makes for a more reliable connection in commercial and industrial settings, where vibration or incidental impact could disconnect a non-locking connector. Locking connectors come in a variety of standardized configurations that follow the same general naming scheme except that the designations include an "L" for "locking".

3. Disconnector - Wikipedia

   en.wikipedia.org/wiki/Disconnector

   Safety regulations of the utility must prevent any attempt to open the disconnector while it supplies a circuit. Standards in some countries for safety may require either local motor isolators or lockable handles (which can be padlocked). IEC standard 62271-102 defines the functionality and features of a disconnector.

4. IEC 60309 - Wikipedia

   en.wikipedia.org/wiki/IEC_60309

   IEC 60309 (formerly IEC 309 and CEE 17, also published by CENELEC as EN 60309) is a series of international standards from the International Electrotechnical Commission (IEC) for "plugs, socket-outlets and couplers for industrial purposes".

5. Power system protection - Wikipedia

   en.wikipedia.org/wiki/Power_system_protection

   Switchgear is a combination of electrical disconnect switches, fuses or circuit breakers used to control, protect and isolate electrical equipment. Switches are safe to open under normal load current (some switches are not safe to operate under normal or abnormal conditions), while protective devices are safe to open under fault current.

6. Category:Solid state switches - Wikipedia

   en.wikipedia.org/wiki/Category:Solid_state_switches

   Pertains to electrical switches that have no moving parts and rely on semiconductors to control current flow. Subcategories This category has the following 2 subcategories, out of 2 total.

7. IEC 60320 - Wikipedia

   en.wikipedia.org/wiki/IEC_60320

   A variety of different kinds of IEC 60320 plugs and sockets. IEC 60320 Appliance couplers for household and similar general purposes [1] is a set of standards from the International Electrotechnical Commission (IEC) specifying non-locking connectors for connecting power supply cords to electrical appliances of voltage not exceeding 250 V (a.c.) and rated current not exceeding 16 A. [1 ...